en.search-data.min.22fa58916a34df1fc570b2f44671004fea1d471ef27527d575e5657f1cfedff6.json

[{"id":0,"href":"/docs/topic/","title":"Topic","section":"Docs","content":" Ubi loqui # Mentem genus facietque salire tempus bracchia # Lorem markdownum partu paterno Achillem. Habent amne generosi aderant ad pellem nec erat sustinet merces columque haec et, dixit minus nutrit accipiam subibis subdidit. Temeraria servatum agros qui sed fulva facta. Primum ultima, dedit, suo quisque linguae medentes fixo: tum petis.\nRapit vocant si hunc siste adspice # Ora precari Patraeque Neptunia, dixit Danae Cithaeron armaque maxima in nati Coniugis templis fluidove. Effugit usus nec ingreditur agmen ac manus conlato. Nullis vagis nequiquam vultibus aliquos altera suum venis teneas fretum. Armos remotis hoc sine ferrea iuncta quam!\nLocus fuit caecis # Nefas discordemque domino montes numen tum humili nexilibusque exit, Iove. Quae miror esse, scelerisque Melaneus viribus. Miseri laurus. Hoc est proposita me ante aliquid, aura inponere candidioribus quidque accendit bella, sumpta. Intravit quam erat figentem hunc, motus de fontes parvo tempestate.\niscsi_virus = pitch(json_in_on(eupViral), northbridge_services_troubleshooting, personal( firmware_rw.trash_rw_crm.device(interactive_gopher_personal, software, -1), megabit, ergonomicsSoftware(cmyk_usb_panel, mips_whitelist_duplex, cpa))); if (5) { managementNetwork += dma - boolean; kilohertz_token = 2; honeypot_affiliate_ergonomics = fiber; } mouseNorthbridge = byte(nybble_xmp_modem.horse_subnet( analogThroughputService * graphicPoint, drop(daw_bit, dnsIntranet), gateway_ospf), repository.domain_key.mouse(serverData(fileNetwork, trim_duplex_file), cellTapeDirect, token_tooltip_mashup( ripcordingMashup))); module_it = honeypot_driver(client_cold_dvr(593902, ripping_frequency) + coreLog.joystick(componentUdpLink), windows_expansion_touchscreen); bashGigabit.external.reality(2, server_hardware_codec.flops.ebookSampling( ciscNavigationBacklink, table + cleanDriver), indexProtocolIsp); class Solution { public static void main(String[] args) { System.out.println(\u0026#34;Hello, world!\u0026#34;); } } Placabilis coactis nega ingemuit ignoscat nimia non # Frontis turba. Oculi gravis est Delphice; inque praedaque sanguine manu non.\nif (ad_api) { zif += usb.tiffAvatarRate(subnet, digital_rt) + exploitDrive; gigaflops(2 - bluetooth, edi_asp_memory.gopher(queryCursor, laptop), panel_point_firmware); spyware_bash.statePopApplet = express_netbios_digital( insertion_troubleshooting.brouter(recordFolderUs), 65); } recursionCoreRay = -5; if (hub == non) { portBoxVirus = soundWeb(recursive_card(rwTechnologyLeopard), font_radcab, guidCmsScalable + reciprocalMatrixPim); left.bug = screenshot; } else { tooltipOpacity = raw_process_permalink(webcamFontUser, -1); executable_router += tape; } if (tft) { bandwidthWeb *= social_page; } else { regular += 611883; thumbnail /= system_lag_keyboard; } Caesorum illa tu sentit micat vestes papyriferi # Inde aderam facti; Theseus vis de tauri illa peream. Oculos uberaque non regisque vobis cursuque, opus venit quam vulnera. Et maiora necemque, lege modo; gestanda nitidi, vero? Dum ne pectoraque testantur.\nVenasque repulsa Samos qui, exspectatum eram animosque hinc, aut manes, Assyrii. Cupiens auctoribus pariter rubet, profana magni super nocens. Vos ius sibilat inpar turba visae iusto! Sedes ante dum superest extrema.\n"},{"id":1,"href":"/docs/codes/","title":"Codes","section":"Docs","content":" Ubi loqui # Mentem genus facietque salire tempus bracchia # Lorem markdownum partu paterno Achillem. Habent amne generosi aderant ad pellem nec erat sustinet merces columque haec et, dixit minus nutrit accipiam subibis subdidit. Temeraria servatum agros qui sed fulva facta. Primum ultima, dedit, suo quisque linguae medentes fixo: tum petis.\nRapit vocant si hunc siste adspice # Ora precari Patraeque Neptunia, dixit Danae Cithaeron armaque maxima in nati Coniugis templis fluidove. Effugit usus nec ingreditur agmen ac manus conlato. Nullis vagis nequiquam vultibus aliquos altera suum venis teneas fretum. Armos remotis hoc sine ferrea iuncta quam!\nLocus fuit caecis # Nefas discordemque domino montes numen tum humili nexilibusque exit, Iove. Quae miror esse, scelerisque Melaneus viribus. Miseri laurus. Hoc est proposita me ante aliquid, aura inponere candidioribus quidque accendit bella, sumpta. Intravit quam erat figentem hunc, motus de fontes parvo tempestate.\niscsi_virus = pitch(json_in_on(eupViral), northbridge_services_troubleshooting, personal( firmware_rw.trash_rw_crm.device(interactive_gopher_personal, software, -1), megabit, ergonomicsSoftware(cmyk_usb_panel, mips_whitelist_duplex, cpa))); if (5) { managementNetwork += dma - boolean; kilohertz_token = 2; honeypot_affiliate_ergonomics = fiber; } mouseNorthbridge = byte(nybble_xmp_modem.horse_subnet( analogThroughputService * graphicPoint, drop(daw_bit, dnsIntranet), gateway_ospf), repository.domain_key.mouse(serverData(fileNetwork, trim_duplex_file), cellTapeDirect, token_tooltip_mashup( ripcordingMashup))); module_it = honeypot_driver(client_cold_dvr(593902, ripping_frequency) + coreLog.joystick(componentUdpLink), windows_expansion_touchscreen); bashGigabit.external.reality(2, server_hardware_codec.flops.ebookSampling( ciscNavigationBacklink, table + cleanDriver), indexProtocolIsp); class Solution { "},{"id":2,"href":"/posts/creating-a-new-theme/","title":"Creating a New Theme","section":"Blog","content":" Introduction # This tutorial will show you how to create a simple theme in Hugo. I assume that you are familiar with HTML, the bash command line, and that you are comfortable using Markdown to format content. I\u0026rsquo;ll explain how Hugo uses templates and how you can organize your templates to create a theme. I won\u0026rsquo;t cover using CSS to style your theme.\nWe\u0026rsquo;ll start with creating a new site with a very basic template. Then we\u0026rsquo;ll add in a few pages and posts. With small variations on that, you will be able to create many different types of web sites.\nIn this tutorial, commands that you enter will start with the \u0026ldquo;$\u0026rdquo; prompt. The output will follow. Lines that start with \u0026ldquo;#\u0026rdquo; are comments that I\u0026rsquo;ve added to explain a point. When I show updates to a file, the \u0026ldquo;:wq\u0026rdquo; on the last line means to save the file.\nHere\u0026rsquo;s an example:\n## this is a comment $ echo this is a command this is a command ## edit the file $ vi foo.md +++ date = \u0026#34;2014-09-28\u0026#34; title = \u0026#34;creating a new theme\u0026#34; +++ bah and humbug :wq ## show it $ cat foo.md +++ date = \u0026#34;2014-09-28\u0026#34; title = \u0026#34;creating a new theme\u0026#34; +++ bah and humbug $ Some Definitions # There are a few concepts that you need to understand before creating a theme.\nSkins # Skins are the files responsible for the look and feel of your site. It’s the CSS that controls colors and fonts, it’s the Javascript that determines actions and reactions. It’s also the rules that Hugo uses to transform your content into the HTML that the site will serve to visitors.\nYou have two ways to create a skin. The simplest way is to create it in the layouts/ directory. If you do, then you don’t have to worry about configuring Hugo to recognize it. The first place that Hugo will look for rules and files is in the layouts/ directory so it will always find the skin.\nYour second choice is to create it in a sub-directory of the themes/ directory. If you do, then you must always tell Hugo where to search for the skin. It’s extra work, though, so why bother with it?\nThe difference between creating a skin in layouts/ and creating it in themes/ is very subtle. A skin in layouts/ can’t be customized without updating the templates and static files that it is built from. A skin created in themes/, on the other hand, can be and that makes it easier for other people to use it.\nThe rest of this tutorial will call a skin created in the themes/ directory a theme.\nNote that you can use this tutorial to create a skin in the layouts/ directory if you wish to. The main difference will be that you won’t need to update the site’s configuration file to use a theme.\nThe Home Page # The home page, or landing page, is the first page that many visitors to a site see. It is the index.html file in the root directory of the web site. Since Hugo writes files to the public/ directory, our home page is public/index.html.\nSite Configuration File # When Hugo runs, it looks for a configuration file that contains settings that override default values for the entire site. The file can use TOML, YAML, or JSON. I prefer to use TOML for my configuration files. If you prefer to use JSON or YAML, you’ll need to translate my examples. You’ll also need to change the name of the file since Hugo uses the extension to determine how to process it.\nHugo translates Markdown files into HTML. By default, Hugo expects to find Markdown files in your content/ directory and template files in your themes/ directory. It will create HTML files in your public/ directory. You can change this by specifying alternate locations in the configuration file.\nContent # Content is stored in text files that contain two sections. The first section is the “front matter,” which is the meta-information on the content. The second section contains Markdown that will be converted to HTML.\nFront Matter # The front matter is information about the content. Like the configuration file, it can be written in TOML, YAML, or JSON. Unlike the configuration file, Hugo doesn’t use the file’s extension to know the format. It looks for markers to signal the type. TOML is surrounded by “+++”, YAML by “---”, and JSON is enclosed in curly braces. I prefer to use TOML, so you’ll need to translate my examples if you prefer YAML or JSON.\nThe information in the front matter is passed into the template before the content is rendered into HTML.\nMarkdown # Content is written in Markdown which makes it easier to create the content. Hugo runs the content through a Markdown engine to create the HTML which will be written to the output file.\nTemplate Files # Hugo uses template files to render content into HTML. Template files are a bridge between the content and presentation. Rules in the template define what content is published, where it\u0026rsquo;s published to, and how it will rendered to the HTML file. The template guides the presentation by specifying the style to use.\nThere are three types of templates: single, list, and partial. Each type takes a bit of content as input and transforms it based on the commands in the template.\nHugo uses its knowledge of the content to find the template file used to render the content. If it can’t find a template that is an exact match for the content, it will shift up a level and search from there. It will continue to do so until it finds a matching template or runs out of templates to try. If it can’t find a template, it will use the default template for the site.\nPlease note that you can use the front matter to influence Hugo’s choice of templates.\nSingle Template # A single template is used to render a single piece of content. For example, an article or post would be a single piece of content and use a single template.\nList Template # A list template renders a group of related content. That could be a summary of recent postings or all articles in a category. List templates can contain multiple groups.\nThe homepage template is a special type of list template. Hugo assumes that the home page of your site will act as the portal for the rest of the content in the site.\nPartial Template # A partial template is a template that can be included in other templates. Partial templates must be called using the “partial” template command. They are very handy for rolling up common behavior. For example, your site may have a banner that all pages use. Instead of copying the text of the banner into every single and list template, you could create a partial with the banner in it. That way if you decide to change the banner, you only have to change the partial template.\nCreate a New Site # Let\u0026rsquo;s use Hugo to create a new web site. I\u0026rsquo;m a Mac user, so I\u0026rsquo;ll create mine in my home directory, in the Sites folder. If you\u0026rsquo;re using Linux, you might have to create the folder first.\nThe \u0026ldquo;new site\u0026rdquo; command will create a skeleton of a site. It will give you the basic directory structure and a useable configuration file.\n$ hugo new site ~/Sites/zafta $ cd ~/Sites/zafta $ ls -l total 8 drwxr-xr-x 7 quoha staff 238 Sep 29 16:49 . drwxr-xr-x 3 quoha staff 102 Sep 29 16:49 .. drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 archetypes -rw-r--r-- 1 quoha staff 82 Sep 29 16:49 config.toml drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 content drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 layouts drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 static $ Take a look in the content/ directory to confirm that it is empty.\nThe other directories (archetypes/, layouts/, and static/) are used when customizing a theme. That\u0026rsquo;s a topic for a different tutorial, so please ignore them for now.\nGenerate the HTML For the New Site # Running the hugo command with no options will read all the available content and generate the HTML files. It will also copy all static files (that\u0026rsquo;s everything that\u0026rsquo;s not content). Since we have an empty site, it won\u0026rsquo;t do much, but it will do it very quickly.\n$ hugo --verbose INFO: 2014/09/29 Using config file: config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ WARN: 2014/09/29 Unable to locate layout: [index.html _default/list.html _default/single.html] WARN: 2014/09/29 Unable to locate layout: [404.html] 0 draft content 0 future content 0 pages created 0 tags created 0 categories created in 2 ms $ The \u0026ldquo;--verbose\u0026rdquo; flag gives extra information that will be helpful when we build the template. Every line of the output that starts with \u0026ldquo;INFO:\u0026rdquo; or \u0026ldquo;WARN:\u0026rdquo; is present because we used that flag. The lines that start with \u0026ldquo;WARN:\u0026rdquo; are warning messages. We\u0026rsquo;ll go over them later.\nWe can verify that the command worked by looking at the directory again.\n$ ls -l total 8 drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 archetypes -rw-r--r-- 1 quoha staff 82 Sep 29 16:49 config.toml drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 content drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 layouts drwxr-xr-x 4 quoha staff 136 Sep 29 17:02 public drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 static $ See that new public/ directory? Hugo placed all generated content there. When you\u0026rsquo;re ready to publish your web site, that\u0026rsquo;s the place to start. For now, though, let\u0026rsquo;s just confirm that we have what we\u0026rsquo;d expect from a site with no content.\n$ ls -l public total 16 -rw-r--r-- 1 quoha staff 416 Sep 29 17:02 index.xml -rw-r--r-- 1 quoha staff 262 Sep 29 17:02 sitemap.xml $ Hugo created two XML files, which is standard, but there are no HTML files.\nTest the New Site # Verify that you can run the built-in web server. It will dramatically shorten your development cycle if you do. Start it by running the \u0026ldquo;server\u0026rdquo; command. If it is successful, you will see output similar to the following:\n$ hugo server --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ WARN: 2014/09/29 Unable to locate layout: [index.html _default/list.html _default/single.html] WARN: 2014/09/29 Unable to locate layout: [404.html] 0 draft content 0 future content 0 pages created 0 tags created 0 categories created in 2 ms Serving pages from /Users/quoha/Sites/zafta/public Web Server is available at http://localhost:1313 Press Ctrl+C to stop Connect to the listed URL (it\u0026rsquo;s on the line that starts with \u0026ldquo;Web Server\u0026rdquo;). If everything is working correctly, you should get a page that shows the following:\nindex.xml sitemap.xml That\u0026rsquo;s a listing of your public/ directory. Hugo didn\u0026rsquo;t create a home page because our site has no content. When there\u0026rsquo;s no index.html file in a directory, the server lists the files in the directory, which is what you should see in your browser.\nLet’s go back and look at those warnings again.\nWARN: 2014/09/29 Unable to locate layout: [index.html _default/list.html _default/single.html] WARN: 2014/09/29 Unable to locate layout: [404.html] That second warning is easier to explain. We haven’t created a template to be used to generate “page not found errors.” The 404 message is a topic for a separate tutorial.\nNow for the first warning. It is for the home page. You can tell because the first layout that it looked for was “index.html.” That’s only used by the home page.\nI like that the verbose flag causes Hugo to list the files that it\u0026rsquo;s searching for. For the home page, they are index.html, _default/list.html, and _default/single.html. There are some rules that we\u0026rsquo;ll cover later that explain the names and paths. For now, just remember that Hugo couldn\u0026rsquo;t find a template for the home page and it told you so.\nAt this point, you\u0026rsquo;ve got a working installation and site that we can build upon. All that’s left is to add some content and a theme to display it.\nCreate a New Theme # Hugo doesn\u0026rsquo;t ship with a default theme. There are a few available (I counted a dozen when I first installed Hugo) and Hugo comes with a command to create new themes.\nWe\u0026rsquo;re going to create a new theme called \u0026ldquo;zafta.\u0026rdquo; Since the goal of this tutorial is to show you how to fill out the files to pull in your content, the theme will not contain any CSS. In other words, ugly but functional.\nAll themes have opinions on content and layout. For example, Zafta uses \u0026ldquo;post\u0026rdquo; over \u0026ldquo;blog\u0026rdquo;. Strong opinions make for simpler templates but differing opinions make it tougher to use themes. When you build a theme, consider using the terms that other themes do.\nCreate a Skeleton # Use the hugo \u0026ldquo;new\u0026rdquo; command to create the skeleton of a theme. This creates the directory structure and places empty files for you to fill out.\n$ hugo new theme zafta $ ls -l total 8 drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 archetypes -rw-r--r-- 1 quoha staff 82 Sep 29 16:49 config.toml drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 content drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 layouts drwxr-xr-x 4 quoha staff 136 Sep 29 17:02 public drwxr-xr-x 2 quoha staff 68 Sep 29 16:49 static drwxr-xr-x 3 quoha staff 102 Sep 29 17:31 themes $ find themes -type f | xargs ls -l -rw-r--r-- 1 quoha staff 1081 Sep 29 17:31 themes/zafta/LICENSE.md -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/archetypes/default.md -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/_default/list.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/_default/single.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/partials/footer.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/partials/header.html -rw-r--r-- 1 quoha staff 93 Sep 29 17:31 themes/zafta/theme.toml $ The skeleton includes templates (the files ending in .html), license file, a description of your theme (the theme.toml file), and an empty archetype.\nPlease take a minute to fill out the theme.toml and LICENSE.md files. They\u0026rsquo;re optional, but if you\u0026rsquo;re going to be distributing your theme, it tells the world who to praise (or blame). It\u0026rsquo;s also nice to declare the license so that people will know how they can use the theme.\n$ vi themes/zafta/theme.toml author = \u0026#34;michael d henderson\u0026#34; description = \u0026#34;a minimal working template\u0026#34; license = \u0026#34;MIT\u0026#34; name = \u0026#34;zafta\u0026#34; source_repo = \u0026#34;\u0026#34; tags = [\u0026#34;tags\u0026#34;, \u0026#34;categories\u0026#34;] :wq ## also edit themes/zafta/LICENSE.md and change ## the bit that says \u0026#34;YOUR_NAME_HERE\u0026#34; Note that the the skeleton\u0026rsquo;s template files are empty. Don\u0026rsquo;t worry, we\u0026rsquo;ll be changing that shortly.\n$ find themes/zafta -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/_default/list.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/_default/single.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/partials/footer.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/partials/header.html $ Update the Configuration File to Use the Theme # Now that we\u0026rsquo;ve got a theme to work with, it\u0026rsquo;s a good idea to add the theme name to the configuration file. This is optional, because you can always add \u0026ldquo;-t zafta\u0026rdquo; on all your commands. I like to put it the configuration file because I like shorter command lines. If you don\u0026rsquo;t put it in the configuration file or specify it on the command line, you won\u0026rsquo;t use the template that you\u0026rsquo;re expecting to.\nEdit the file to add the theme, add a title for the site, and specify that all of our content will use the TOML format.\n$ vi config.toml theme = \u0026#34;zafta\u0026#34; baseurl = \u0026#34;\u0026#34; languageCode = \u0026#34;en-us\u0026#34; title = \u0026#34;zafta - totally refreshing\u0026#34; MetaDataFormat = \u0026#34;toml\u0026#34; :wq $ Generate the Site # Now that we have an empty theme, let\u0026rsquo;s generate the site again.\n$ hugo --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/themes/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 0 pages created 0 tags created 0 categories created in 2 ms $ Did you notice that the output is different? The warning message for the home page has disappeared and we have an additional information line saying that Hugo is syncing from the theme\u0026rsquo;s directory.\nLet\u0026rsquo;s check the public/ directory to see what Hugo\u0026rsquo;s created.\n$ ls -l public total 16 drwxr-xr-x 2 quoha staff 68 Sep 29 17:56 css -rw-r--r-- 1 quoha staff 0 Sep 29 17:56 index.html -rw-r--r-- 1 quoha staff 407 Sep 29 17:56 index.xml drwxr-xr-x 2 quoha staff 68 Sep 29 17:56 js -rw-r--r-- 1 quoha staff 243 Sep 29 17:56 sitemap.xml $ Notice four things:\nHugo created a home page. This is the file public/index.html. Hugo created a css/ directory. Hugo created a js/ directory. Hugo claimed that it created 0 pages. It created a file and copied over static files, but didn\u0026rsquo;t create any pages. That\u0026rsquo;s because it considers a \u0026ldquo;page\u0026rdquo; to be a file created directly from a content file. It doesn\u0026rsquo;t count things like the index.html files that it creates automatically. The Home Page # Hugo supports many different types of templates. The home page is special because it gets its own type of template and its own template file. The file, layouts/index.html, is used to generate the HTML for the home page. The Hugo documentation says that this is the only required template, but that depends. Hugo\u0026rsquo;s warning message shows that it looks for three different templates:\nWARN: 2014/09/29 Unable to locate layout: [index.html _default/list.html _default/single.html] If it can\u0026rsquo;t find any of these, it completely skips creating the home page. We noticed that when we built the site without having a theme installed.\nWhen Hugo created our theme, it created an empty home page template. Now, when we build the site, Hugo finds the template and uses it to generate the HTML for the home page. Since the template file is empty, the HTML file is empty, too. If the template had any rules in it, then Hugo would have used them to generate the home page.\n$ find . -name index.html | xargs ls -l -rw-r--r-- 1 quoha staff 0 Sep 29 20:21 ./public/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 ./themes/zafta/layouts/index.html $ The Magic of Static # Hugo does two things when generating the site. It uses templates to transform content into HTML and it copies static files into the site. Unlike content, static files are not transformed. They are copied exactly as they are.\nHugo assumes that your site will use both CSS and JavaScript, so it creates directories in your theme to hold them. Remember opinions? Well, Hugo\u0026rsquo;s opinion is that you\u0026rsquo;ll store your CSS in a directory named css/ and your JavaScript in a directory named js/. If you don\u0026rsquo;t like that, you can change the directory names in your theme directory or even delete them completely. Hugo\u0026rsquo;s nice enough to offer its opinion, then behave nicely if you disagree.\n$ find themes/zafta -type d | xargs ls -ld drwxr-xr-x 7 quoha staff 238 Sep 29 17:38 themes/zafta drwxr-xr-x 3 quoha staff 102 Sep 29 17:31 themes/zafta/archetypes drwxr-xr-x 5 quoha staff 170 Sep 29 17:31 themes/zafta/layouts drwxr-xr-x 4 quoha staff 136 Sep 29 17:31 themes/zafta/layouts/_default drwxr-xr-x 4 quoha staff 136 Sep 29 17:31 themes/zafta/layouts/partials drwxr-xr-x 4 quoha staff 136 Sep 29 17:31 themes/zafta/static drwxr-xr-x 2 quoha staff 68 Sep 29 17:31 themes/zafta/static/css drwxr-xr-x 2 quoha staff 68 Sep 29 17:31 themes/zafta/static/js $ The Theme Development Cycle # When you\u0026rsquo;re working on a theme, you will make changes in the theme\u0026rsquo;s directory, rebuild the site, and check your changes in the browser. Hugo makes this very easy:\nPurge the public/ directory. Run the built in web server in watch mode. Open your site in a browser. Update the theme. Glance at your browser window to see changes. Return to step 4. I’ll throw in one more opinion: never work on a theme on a live site. Always work on a copy of your site. Make changes to your theme, test them, then copy them up to your site. For added safety, use a tool like Git to keep a revision history of your content and your theme. Believe me when I say that it is too easy to lose both your mind and your changes.\nCheck the main Hugo site for information on using Git with Hugo.\nPurge the public/ Directory # When generating the site, Hugo will create new files and update existing ones in the public/ directory. It will not delete files that are no longer used. For example, files that were created in the wrong directory or with the wrong title will remain. If you leave them, you might get confused by them later. I recommend cleaning out your site prior to generating it.\nNote: If you\u0026rsquo;re building on an SSD, you should ignore this. Churning on a SSD can be costly.\nHugo\u0026rsquo;s Watch Option # Hugo\u0026rsquo;s \u0026ldquo;--watch\u0026rdquo; option will monitor the content/ and your theme directories for changes and rebuild the site automatically.\nLive Reload # Hugo\u0026rsquo;s built in web server supports live reload. As pages are saved on the server, the browser is told to refresh the page. Usually, this happens faster than you can say, \u0026ldquo;Wow, that\u0026rsquo;s totally amazing.\u0026rdquo;\nDevelopment Commands # Use the following commands as the basis for your workflow.\n## purge old files. hugo will recreate the public directory. ## $ rm -rf public ## ## run hugo in watch mode ## $ hugo server --watch --verbose Here\u0026rsquo;s sample output showing Hugo detecting a change to the template for the home page. Once generated, the web browser automatically reloaded the page. I\u0026rsquo;ve said this before, it\u0026rsquo;s amazing.\n$ rm -rf public $ hugo server --watch --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/themes/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 0 pages created 0 tags created 0 categories created in 2 ms Watching for changes in /Users/quoha/Sites/zafta/content Serving pages from /Users/quoha/Sites/zafta/public Web Server is available at http://localhost:1313 Press Ctrl+C to stop INFO: 2014/09/29 File System Event: [\u0026#34;/Users/quoha/Sites/zafta/themes/zafta/layouts/index.html\u0026#34;: MODIFY|ATTRIB] Change detected, rebuilding site WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 0 pages created 0 tags created 0 categories created in 1 ms Update the Home Page Template # The home page is one of a few special pages that Hugo creates automatically. As mentioned earlier, it looks for one of three files in the theme\u0026rsquo;s layout/ directory:\nindex.html _default/list.html _default/single.html We could update one of the default templates, but a good design decision is to update the most specific template available. That\u0026rsquo;s not a hard and fast rule (in fact, we\u0026rsquo;ll break it a few times in this tutorial), but it is a good generalization.\nMake a Static Home Page # Right now, that page is empty because we don\u0026rsquo;t have any content and we don\u0026rsquo;t have any logic in the template. Let\u0026rsquo;s change that by adding some text to the template.\n$ vi themes/zafta/layouts/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; \u0026lt;p\u0026gt;hugo says hello!\u0026lt;/p\u0026gt; \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; :wq $ Build the web site and then verify the results.\n$ hugo --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/themes/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 0 pages created 0 tags created 0 categories created in 2 ms $ find public -type f -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-r--r-- 1 quoha staff 78 Sep 29 21:26 public/index.html $ cat public/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; \u0026lt;p\u0026gt;hugo says hello!\u0026lt;/p\u0026gt; \u0026lt;/html\u0026gt; Live Reload # Note: If you\u0026rsquo;re running the server with the --watch option, you\u0026rsquo;ll see different content in the file:\n$ cat public/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; \u0026lt;p\u0026gt;hugo says hello!\u0026lt;/p\u0026gt; \u0026lt;script\u0026gt;document.write(\u0026#39;\u0026lt;script src=\u0026#34;http://\u0026#39; + (location.host || \u0026#39;localhost\u0026#39;).split(\u0026#39;:\u0026#39;)[0] + \u0026#39;:1313/livereload.js?mindelay=10\u0026#34;\u0026gt;\u0026lt;/\u0026#39; + \u0026#39;script\u0026gt;\u0026#39;)\u0026lt;/script\u0026gt;\u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; When you use --watch, the Live Reload script is added by Hugo. Look for live reload in the documentation to see what it does and how to disable it.\nBuild a \u0026ldquo;Dynamic\u0026rdquo; Home Page # \u0026ldquo;Dynamic home page?\u0026rdquo; Hugo\u0026rsquo;s a static web site generator, so this seems an odd thing to say. I mean let\u0026rsquo;s have the home page automatically reflect the content in the site every time Hugo builds it. We\u0026rsquo;ll use iteration in the template to do that.\nCreate New Posts # Now that we have the home page generating static content, let\u0026rsquo;s add some content to the site. We\u0026rsquo;ll display these posts as a list on the home page and on their own page, too.\nHugo has a command to generate a skeleton post, just like it does for sites and themes.\n$ hugo --verbose new post/first.md INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 attempting to create post/first.md of post INFO: 2014/09/29 curpath: /Users/quoha/Sites/zafta/themes/zafta/archetypes/default.md ERROR: 2014/09/29 Unable to Cast \u0026lt;nil\u0026gt; to map[string]interface{} $ That wasn\u0026rsquo;t very nice, was it?\nThe \u0026ldquo;new\u0026rdquo; command uses an archetype to create the post file. Hugo created an empty default archetype file, but that causes an error when there\u0026rsquo;s a theme. For me, the workaround was to create an archetypes file specifically for the post type.\n$ vi themes/zafta/archetypes/post.md +++ Description = \u0026#34;\u0026#34; Tags = [] Categories = [] +++ :wq $ find themes/zafta/archetypes -type f | xargs ls -l -rw-r--r-- 1 quoha staff 0 Sep 29 21:53 themes/zafta/archetypes/default.md -rw-r--r-- 1 quoha staff 51 Sep 29 21:54 themes/zafta/archetypes/post.md $ hugo --verbose new post/first.md INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 attempting to create post/first.md of post INFO: 2014/09/29 curpath: /Users/quoha/Sites/zafta/themes/zafta/archetypes/post.md INFO: 2014/09/29 creating /Users/quoha/Sites/zafta/content/post/first.md /Users/quoha/Sites/zafta/content/post/first.md created $ hugo --verbose new post/second.md INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 attempting to create post/second.md of post INFO: 2014/09/29 curpath: /Users/quoha/Sites/zafta/themes/zafta/archetypes/post.md INFO: 2014/09/29 creating /Users/quoha/Sites/zafta/content/post/second.md /Users/quoha/Sites/zafta/content/post/second.md created $ ls -l content/post total 16 -rw-r--r-- 1 quoha staff 104 Sep 29 21:54 first.md -rw-r--r-- 1 quoha staff 105 Sep 29 21:57 second.md $ cat content/post/first.md +++ Categories = [] Description = \u0026#34;\u0026#34; Tags = [] date = \u0026#34;2014-09-29T21:54:53-05:00\u0026#34; title = \u0026#34;first\u0026#34; +++ my first post $ cat content/post/second.md +++ Categories = [] Description = \u0026#34;\u0026#34; Tags = [] date = \u0026#34;2014-09-29T21:57:09-05:00\u0026#34; title = \u0026#34;second\u0026#34; +++ my second post $ Build the web site and then verify the results.\n$ rm -rf public $ hugo --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/themes/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 found taxonomies: map[string]string{\u0026#34;category\u0026#34;:\u0026#34;categories\u0026#34;, \u0026#34;tag\u0026#34;:\u0026#34;tags\u0026#34;} WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 2 pages created 0 tags created 0 categories created in 4 ms $ The output says that it created 2 pages. Those are our new posts:\n$ find public -type f -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-r--r-- 1 quoha staff 78 Sep 29 22:13 public/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:13 public/post/first/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:13 public/post/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:13 public/post/second/index.html $ The new files are empty because because the templates used to generate the content are empty. The homepage doesn\u0026rsquo;t show the new content, either. We have to update the templates to add the posts.\nList and Single Templates # In Hugo, we have three major kinds of templates. There\u0026rsquo;s the home page template that we updated previously. It is used only by the home page. We also have \u0026ldquo;single\u0026rdquo; templates which are used to generate output for a single content file. We also have \u0026ldquo;list\u0026rdquo; templates that are used to group multiple pieces of content before generating output.\nGenerally speaking, list templates are named \u0026ldquo;list.html\u0026rdquo; and single templates are named \u0026ldquo;single.html.\u0026rdquo;\nThere are three other types of templates: partials, content views, and terms. We will not go into much detail on these.\nAdd Content to the Homepage # The home page will contain a list of posts. Let\u0026rsquo;s update its template to add the posts that we just created. The logic in the template will run every time we build the site.\n$ vi themes/zafta/layouts/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; {{ range first 10 .Data.Pages }} \u0026lt;h1\u0026gt;{{ .Title }}\u0026lt;/h1\u0026gt; {{ end }} \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; :wq $ Hugo uses the Go template engine. That engine scans the template files for commands which are enclosed between \u0026ldquo;{{\u0026rdquo; and \u0026ldquo;}}\u0026rdquo;. In our template, the commands are:\nrange .Title end The \u0026ldquo;range\u0026rdquo; command is an iterator. We\u0026rsquo;re going to use it to go through the first ten pages. Every HTML file that Hugo creates is treated as a page, so looping through the list of pages will look at every file that will be created.\nThe \u0026ldquo;.Title\u0026rdquo; command prints the value of the \u0026ldquo;title\u0026rdquo; variable. Hugo pulls it from the front matter in the Markdown file.\nThe \u0026ldquo;end\u0026rdquo; command signals the end of the range iterator. The engine loops back to the top of the iteration when it finds \u0026ldquo;end.\u0026rdquo; Everything between the \u0026ldquo;range\u0026rdquo; and \u0026ldquo;end\u0026rdquo; is evaluated every time the engine goes through the iteration. In this file, that would cause the title from the first ten pages to be output as heading level one.\nIt\u0026rsquo;s helpful to remember that some variables, like .Data, are created before any output files. Hugo loads every content file into the variable and then gives the template a chance to process before creating the HTML files.\nBuild the web site and then verify the results.\n$ rm -rf public $ hugo --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/themes/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 found taxonomies: map[string]string{\u0026#34;tag\u0026#34;:\u0026#34;tags\u0026#34;, \u0026#34;category\u0026#34;:\u0026#34;categories\u0026#34;} WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 2 pages created 0 tags created 0 categories created in 4 ms $ find public -type f -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-r--r-- 1 quoha staff 94 Sep 29 22:23 public/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:23 public/post/first/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:23 public/post/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:23 public/post/second/index.html $ cat public/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; \u0026lt;h1\u0026gt;second\u0026lt;/h1\u0026gt; \u0026lt;h1\u0026gt;first\u0026lt;/h1\u0026gt; \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; $ Congratulations, the home page shows the title of the two posts. The posts themselves are still empty, but let\u0026rsquo;s take a moment to appreciate what we\u0026rsquo;ve done. Your template now generates output dynamically. Believe it or not, by inserting the range command inside of those curly braces, you\u0026rsquo;ve learned everything you need to know to build a theme. All that\u0026rsquo;s really left is understanding which template will be used to generate each content file and becoming familiar with the commands for the template engine.\nAnd, if that were entirely true, this tutorial would be much shorter. There are a few things to know that will make creating a new template much easier. Don\u0026rsquo;t worry, though, that\u0026rsquo;s all to come.\nAdd Content to the Posts # We\u0026rsquo;re working with posts, which are in the content/post/ directory. That means that their section is \u0026ldquo;post\u0026rdquo; (and if we don\u0026rsquo;t do something weird, their type is also \u0026ldquo;post\u0026rdquo;).\nHugo uses the section and type to find the template file for every piece of content. Hugo will first look for a template file that matches the section or type name. If it can\u0026rsquo;t find one, then it will look in the _default/ directory. There are some twists that we\u0026rsquo;ll cover when we get to categories and tags, but for now we can assume that Hugo will try post/single.html, then _default/single.html.\nNow that we know the search rule, let\u0026rsquo;s see what we actually have available:\n$ find themes/zafta -name single.html | xargs ls -l -rw-r--r-- 1 quoha staff 132 Sep 29 17:31 themes/zafta/layouts/_default/single.html We could create a new template, post/single.html, or change the default. Since we don\u0026rsquo;t know of any other content types, let\u0026rsquo;s start with updating the default.\nRemember, any content that we haven\u0026rsquo;t created a template for will end up using this template. That can be good or bad. Bad because I know that we\u0026rsquo;re going to be adding different types of content and we\u0026rsquo;re going to end up undoing some of the changes we\u0026rsquo;ve made. It\u0026rsquo;s good because we\u0026rsquo;ll be able to see immediate results. It\u0026rsquo;s also good to start here because we can start to build the basic layout for the site. As we add more content types, we\u0026rsquo;ll refactor this file and move logic around. Hugo makes that fairly painless, so we\u0026rsquo;ll accept the cost and proceed.\nPlease see the Hugo documentation on template rendering for all the details on determining which template to use. And, as the docs mention, if you\u0026rsquo;re building a single page application (SPA) web site, you can delete all of the other templates and work with just the default single page. That\u0026rsquo;s a refreshing amount of joy right there.\nUpdate the Template File # $ vi themes/zafta/layouts/_default/single.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;head\u0026gt; \u0026lt;title\u0026gt;{{ .Title }}\u0026lt;/title\u0026gt; \u0026lt;/head\u0026gt; \u0026lt;body\u0026gt; \u0026lt;h1\u0026gt;{{ .Title }}\u0026lt;/h1\u0026gt; {{ .Content }} \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; :wq $ Build the web site and verify the results.\n$ rm -rf public $ hugo --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/themes/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 found taxonomies: map[string]string{\u0026#34;tag\u0026#34;:\u0026#34;tags\u0026#34;, \u0026#34;category\u0026#34;:\u0026#34;categories\u0026#34;} WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 2 pages created 0 tags created 0 categories created in 4 ms $ find public -type f -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-r--r-- 1 quoha staff 94 Sep 29 22:40 public/index.html -rw-r--r-- 1 quoha staff 125 Sep 29 22:40 public/post/first/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:40 public/post/index.html -rw-r--r-- 1 quoha staff 128 Sep 29 22:40 public/post/second/index.html $ cat public/post/first/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;head\u0026gt; \u0026lt;title\u0026gt;first\u0026lt;/title\u0026gt; \u0026lt;/head\u0026gt; \u0026lt;body\u0026gt; \u0026lt;h1\u0026gt;first\u0026lt;/h1\u0026gt; \u0026lt;p\u0026gt;my first post\u0026lt;/p\u0026gt; \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; $ cat public/post/second/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;head\u0026gt; \u0026lt;title\u0026gt;second\u0026lt;/title\u0026gt; \u0026lt;/head\u0026gt; \u0026lt;body\u0026gt; \u0026lt;h1\u0026gt;second\u0026lt;/h1\u0026gt; \u0026lt;p\u0026gt;my second post\u0026lt;/p\u0026gt; \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; $ Notice that the posts now have content. You can go to localhost:1313/post/first to verify.\nLinking to Content # The posts are on the home page. Let\u0026rsquo;s add a link from there to the post. Since this is the home page, we\u0026rsquo;ll update its template.\n$ vi themes/zafta/layouts/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; {{ range first 10 .Data.Pages }} \u0026lt;h1\u0026gt;\u0026lt;a href=\u0026#34;{{ .Permalink }}\u0026#34;\u0026gt;{{ .Title }}\u0026lt;/a\u0026gt;\u0026lt;/h1\u0026gt; {{ end }} \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; Build the web site and verify the results.\n$ rm -rf public $ hugo --verbose INFO: 2014/09/29 Using config file: /Users/quoha/Sites/zafta/config.toml INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/themes/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 syncing from /Users/quoha/Sites/zafta/static/ to /Users/quoha/Sites/zafta/public/ INFO: 2014/09/29 found taxonomies: map[string]string{\u0026#34;tag\u0026#34;:\u0026#34;tags\u0026#34;, \u0026#34;category\u0026#34;:\u0026#34;categories\u0026#34;} WARN: 2014/09/29 Unable to locate layout: [404.html theme/404.html] 0 draft content 0 future content 2 pages created 0 tags created 0 categories created in 4 ms $ find public -type f -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-r--r-- 1 quoha staff 149 Sep 29 22:44 public/index.html -rw-r--r-- 1 quoha staff 125 Sep 29 22:44 public/post/first/index.html -rw-r--r-- 1 quoha staff 0 Sep 29 22:44 public/post/index.html -rw-r--r-- 1 quoha staff 128 Sep 29 22:44 public/post/second/index.html $ cat public/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; \u0026lt;h1\u0026gt;\u0026lt;a href=\u0026#34;/post/second/\u0026#34;\u0026gt;second\u0026lt;/a\u0026gt;\u0026lt;/h1\u0026gt; \u0026lt;h1\u0026gt;\u0026lt;a href=\u0026#34;/post/first/\u0026#34;\u0026gt;first\u0026lt;/a\u0026gt;\u0026lt;/h1\u0026gt; \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; $ Create a Post Listing # We have the posts displaying on the home page and on their own page. We also have a file public/post/index.html that is empty. Let\u0026rsquo;s make it show a list of all posts (not just the first ten).\nWe need to decide which template to update. This will be a listing, so it should be a list template. Let\u0026rsquo;s take a quick look and see which list templates are available.\n$ find themes/zafta -name list.html | xargs ls -l -rw-r--r-- 1 quoha staff 0 Sep 29 17:31 themes/zafta/layouts/_default/list.html As with the single post, we have to decide to update _default/list.html or create post/list.html. We still don\u0026rsquo;t have multiple content types, so let\u0026rsquo;s stay consistent and update the default list template.\nCreating Top Level Pages # Let\u0026rsquo;s add an \u0026ldquo;about\u0026rdquo; page and display it at the top level (as opposed to a sub-level like we did with posts).\nThe default in Hugo is to use the directory structure of the content/ directory to guide the location of the generated html in the public/ directory. Let\u0026rsquo;s verify that by creating an \u0026ldquo;about\u0026rdquo; page at the top level:\n$ vi content/about.md +++ title = \u0026#34;about\u0026#34; description = \u0026#34;about this site\u0026#34; date = \u0026#34;2014-09-27\u0026#34; slug = \u0026#34;about time\u0026#34; +++ ## about us i\u0026#39;m speechless :wq Generate the web site and verify the results.\n$ find public -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-rw-r-- 1 mdhender staff 334 Sep 27 15:08 public/about-time/index.html -rw-rw-r-- 1 mdhender staff 527 Sep 27 15:08 public/index.html -rw-rw-r-- 1 mdhender staff 358 Sep 27 15:08 public/post/first-post/index.html -rw-rw-r-- 1 mdhender staff 0 Sep 27 15:08 public/post/index.html -rw-rw-r-- 1 mdhender staff 342 Sep 27 15:08 public/post/second-post/index.html Notice that the page wasn\u0026rsquo;t created at the top level. It was created in a sub-directory named \u0026lsquo;about-time/\u0026rsquo;. That name came from our slug. Hugo will use the slug to name the generated content. It\u0026rsquo;s a reasonable default, by the way, but we can learn a few things by fighting it for this file.\nOne other thing. Take a look at the home page.\n$ cat public/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; \u0026lt;h1\u0026gt;\u0026lt;a href=\u0026#34;http://localhost:1313/post/theme/\u0026#34;\u0026gt;creating a new theme\u0026lt;/a\u0026gt;\u0026lt;/h1\u0026gt; \u0026lt;h1\u0026gt;\u0026lt;a href=\u0026#34;http://localhost:1313/about-time/\u0026#34;\u0026gt;about\u0026lt;/a\u0026gt;\u0026lt;/h1\u0026gt; \u0026lt;h1\u0026gt;\u0026lt;a href=\u0026#34;http://localhost:1313/post/second-post/\u0026#34;\u0026gt;second\u0026lt;/a\u0026gt;\u0026lt;/h1\u0026gt; \u0026lt;h1\u0026gt;\u0026lt;a href=\u0026#34;http://localhost:1313/post/first-post/\u0026#34;\u0026gt;first\u0026lt;/a\u0026gt;\u0026lt;/h1\u0026gt; \u0026lt;script\u0026gt;document.write(\u0026#39;\u0026lt;script src=\u0026#34;http://\u0026#39; + (location.host || \u0026#39;localhost\u0026#39;).split(\u0026#39;:\u0026#39;)[0] + \u0026#39;:1313/livereload.js?mindelay=10\u0026#34;\u0026gt;\u0026lt;/\u0026#39; + \u0026#39;script\u0026gt;\u0026#39;)\u0026lt;/script\u0026gt;\u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; Notice that the \u0026ldquo;about\u0026rdquo; link is listed with the posts? That\u0026rsquo;s not desirable, so let\u0026rsquo;s change that first.\n$ vi themes/zafta/layouts/index.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;body\u0026gt; \u0026lt;h1\u0026gt;posts\u0026lt;/h1\u0026gt; {{ range first 10 .Data.Pages }} {{ if eq .Type \u0026#34;post\u0026#34;}} \u0026lt;h2\u0026gt;\u0026lt;a href=\u0026#34;{{ .Permalink }}\u0026#34;\u0026gt;{{ .Title }}\u0026lt;/a\u0026gt;\u0026lt;/h2\u0026gt; {{ end }} {{ end }} \u0026lt;h1\u0026gt;pages\u0026lt;/h1\u0026gt; {{ range .Data.Pages }} {{ if eq .Type \u0026#34;page\u0026#34; }} \u0026lt;h2\u0026gt;\u0026lt;a href=\u0026#34;{{ .Permalink }}\u0026#34;\u0026gt;{{ .Title }}\u0026lt;/a\u0026gt;\u0026lt;/h2\u0026gt; {{ end }} {{ end }} \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; :wq Generate the web site and verify the results. The home page has two sections, posts and pages, and each section has the right set of headings and links in it.\nBut, that about page still renders to about-time/index.html.\n$ find public -name \u0026#39;*.html\u0026#39; | xargs ls -l -rw-rw-r-- 1 mdhender staff 334 Sep 27 15:33 public/about-time/index.html -rw-rw-r-- 1 mdhender staff 645 Sep 27 15:33 public/index.html -rw-rw-r-- 1 mdhender staff 358 Sep 27 15:33 public/post/first-post/index.html -rw-rw-r-- 1 mdhender staff 0 Sep 27 15:33 public/post/index.html -rw-rw-r-- 1 mdhender staff 342 Sep 27 15:33 public/post/second-post/index.html Knowing that hugo is using the slug to generate the file name, the simplest solution is to change the slug. Let\u0026rsquo;s do it the hard way and change the permalink in the configuration file.\n$ vi config.toml [permalinks] page = \u0026#34;/:title/\u0026#34; about = \u0026#34;/:filename/\u0026#34; Generate the web site and verify that this didn\u0026rsquo;t work. Hugo lets \u0026ldquo;slug\u0026rdquo; or \u0026ldquo;URL\u0026rdquo; override the permalinks setting in the configuration file. Go ahead and comment out the slug in content/about.md, then generate the web site to get it to be created in the right place.\nSharing Templates # If you\u0026rsquo;ve been following along, you probably noticed that posts have titles in the browser and the home page doesn\u0026rsquo;t. That\u0026rsquo;s because we didn\u0026rsquo;t put the title in the home page\u0026rsquo;s template (layouts/index.html). That\u0026rsquo;s an easy thing to do, but let\u0026rsquo;s look at a different option.\nWe can put the common bits into a shared template that\u0026rsquo;s stored in the themes/zafta/layouts/partials/ directory.\nCreate the Header and Footer Partials # In Hugo, a partial is a sugar-coated template. Normally a template reference has a path specified. Partials are different. Hugo searches for them along a TODO defined search path. This makes it easier for end-users to override the theme\u0026rsquo;s presentation.\n$ vi themes/zafta/layouts/partials/header.html \u0026lt;!DOCTYPE html\u0026gt; \u0026lt;html\u0026gt; \u0026lt;head\u0026gt; \u0026lt;title\u0026gt;{{ .Title }}\u0026lt;/title\u0026gt; \u0026lt;/head\u0026gt; \u0026lt;body\u0026gt; :wq $ vi themes/zafta/layouts/partials/footer.html \u0026lt;/body\u0026gt; \u0026lt;/html\u0026gt; :wq Update the Home Page Template to Use the Partials # The most noticeable difference between a template call and a partials call is the lack of path:\n{{ template \u0026#34;theme/partials/header.html\u0026#34; . }} versus\n{{ partial \u0026#34;header.html\u0026#34; . }} Both pass in the context.\nLet\u0026rsquo;s change the home page template to use these new partials.\n$ vi themes/zafta/layouts/index.html {{ partial \u0026#34;header.html\u0026#34; . }} \u0026lt;h1\u0026gt;posts\u0026lt;/h1\u0026gt; {{ range first 10 .Data.Pages }} {{ if eq .Type \u0026#34;post\u0026#34;}} \u0026lt;h2\u0026gt;\u0026lt;a href=\u0026#34;{{ .Permalink }}\u0026#34;\u0026gt;{{ .Title }}\u0026lt;/a\u0026gt;\u0026lt;/h2\u0026gt; {{ end }} {{ end }} \u0026lt;h1\u0026gt;pages\u0026lt;/h1\u0026gt; {{ range .Data.Pages }} {{ if or (eq .Type \u0026#34;page\u0026#34;) (eq .Type \u0026#34;about\u0026#34;) }} \u0026lt;h2\u0026gt;\u0026lt;a href=\u0026#34;{{ .Permalink }}\u0026#34;\u0026gt;{{ .Type }} - {{ .Title }} - {{ .RelPermalink }}\u0026lt;/a\u0026gt;\u0026lt;/h2\u0026gt; {{ end }} {{ end }} {{ partial \u0026#34;footer.html\u0026#34; . }} :wq Generate the web site and verify the results. The title on the home page is now \u0026ldquo;your title here\u0026rdquo;, which comes from the \u0026ldquo;title\u0026rdquo; variable in the config.toml file.\nUpdate the Default Single Template to Use the Partials # $ vi themes/zafta/layouts/_default/single.html {{ partial \u0026#34;header.html\u0026#34; . }} \u0026lt;h1\u0026gt;{{ .Title }}\u0026lt;/h1\u0026gt; {{ .Content }} {{ partial \u0026#34;footer.html\u0026#34; . }} :wq Generate the web site and verify the results. The title on the posts and the about page should both reflect the value in the markdown file.\nAdd “Date Published” to Posts # It\u0026rsquo;s common to have posts display the date that they were written or published, so let\u0026rsquo;s add that. The front matter of our posts has a variable named \u0026ldquo;date.\u0026rdquo; It\u0026rsquo;s usually the date the content was created, but let\u0026rsquo;s pretend that\u0026rsquo;s the value we want to display.\nAdd “Date Published” to the Template # We\u0026rsquo;ll start by updating the template used to render the posts. The template code will look like:\n{{ .Date.Format \u0026#34;Mon, Jan 2, 2006\u0026#34; }} Posts use the default single template, so we\u0026rsquo;ll change that file.\n$ vi themes/zafta/layouts/_default/single.html {{ partial \u0026#34;header.html\u0026#34; . }} \u0026lt;h1\u0026gt;{{ .Title }}\u0026lt;/h1\u0026gt; \u0026lt;h2\u0026gt;{{ .Date.Format \u0026#34;Mon, Jan 2, 2006\u0026#34; }}\u0026lt;/h2\u0026gt; {{ .Content }} {{ partial \u0026#34;footer.html\u0026#34; . }} :wq Generate the web site and verify the results. The posts now have the date displayed in them. There\u0026rsquo;s a problem, though. The \u0026ldquo;about\u0026rdquo; page also has the date displayed.\nAs usual, there are a couple of ways to make the date display only on posts. We could do an \u0026ldquo;if\u0026rdquo; statement like we did on the home page. Another way would be to create a separate template for posts.\nThe \u0026ldquo;if\u0026rdquo; solution works for sites that have just a couple of content types. It aligns with the principle of \u0026ldquo;code for today,\u0026rdquo; too.\nLet\u0026rsquo;s assume, though, that we\u0026rsquo;ve made our site so complex that we feel we have to create a new template type. In Hugo-speak, we\u0026rsquo;re going to create a section template.\nLet\u0026rsquo;s restore the default single template before we forget.\n$ mkdir themes/zafta/layouts/post $ vi themes/zafta/layouts/_default/single.html {{ partial \u0026#34;header.html\u0026#34; . }} \u0026lt;h1\u0026gt;{{ .Title }}\u0026lt;/h1\u0026gt; {{ .Content }} {{ partial \u0026#34;footer.html\u0026#34; . }} :wq Now we\u0026rsquo;ll update the post\u0026rsquo;s version of the single template. If you remember Hugo\u0026rsquo;s rules, the template engine will use this version over the default.\n$ vi themes/zafta/layouts/post/single.html {{ partial \u0026#34;header.html\u0026#34; . }} \u0026lt;h1\u0026gt;{{ .Title }}\u0026lt;/h1\u0026gt; \u0026lt;h2\u0026gt;{{ .Date.Format \u0026#34;Mon, Jan 2, 2006\u0026#34; }}\u0026lt;/h2\u0026gt; {{ .Content }} {{ partial \u0026#34;footer.html\u0026#34; . }} :wq Note that we removed the date logic from the default template and put it in the post template. Generate the web site and verify the results. Posts have dates and the about page doesn\u0026rsquo;t.\nDon\u0026rsquo;t Repeat Yourself # DRY is a good design goal and Hugo does a great job supporting it. Part of the art of a good template is knowing when to add a new template and when to update an existing one. While you\u0026rsquo;re figuring that out, accept that you\u0026rsquo;ll be doing some refactoring. Hugo makes that easy and fast, so it\u0026rsquo;s okay to delay splitting up a template.\n"},{"id":3,"href":"/posts/migrate-from-jekyll/","title":"Migrating from Jekyll","section":"Blog","content":" Move static content to static # Jekyll has a rule that any directory not starting with _ will be copied as-is to the _site output. Hugo keeps all static content under static. You should therefore move it all there. With Jekyll, something that looked like\n▾ \u0026lt;root\u0026gt;/ ▾ images/ logo.png should become\n▾ \u0026lt;root\u0026gt;/ ▾ static/ ▾ images/ logo.png Additionally, you\u0026rsquo;ll want any files that should reside at the root (such as CNAME) to be moved to static.\nCreate your Hugo configuration file # Hugo can read your configuration as JSON, YAML or TOML. Hugo supports parameters custom configuration too. Refer to the Hugo configuration documentation for details.\nSet your configuration publish folder to _site # The default is for Jekyll to publish to _site and for Hugo to publish to public. If, like me, you have _site mapped to a git submodule on the gh-pages branch, you\u0026rsquo;ll want to do one of two alternatives:\nChange your submodule to point to map gh-pages to public instead of _site (recommended).\ngit submodule deinit _site git rm _site git submodule add -b gh-pages git@github.com:your-username/your-repo.git public Or, change the Hugo configuration to use _site instead of public.\n{ .. \u0026quot;publishdir\u0026quot;: \u0026quot;_site\u0026quot;, .. } Convert Jekyll templates to Hugo templates # That\u0026rsquo;s the bulk of the work right here. The documentation is your friend. You should refer to Jekyll\u0026rsquo;s template documentation if you need to refresh your memory on how you built your blog and Hugo\u0026rsquo;s template to learn Hugo\u0026rsquo;s way.\nAs a single reference data point, converting my templates for heyitsalex.net took me no more than a few hours.\nConvert Jekyll plugins to Hugo shortcodes # Jekyll has plugins; Hugo has shortcodes. It\u0026rsquo;s fairly trivial to do a port.\nImplementation # As an example, I was using a custom image_tag plugin to generate figures with caption when running Jekyll. As I read about shortcodes, I found Hugo had a nice built-in shortcode that does exactly the same thing.\nJekyll\u0026rsquo;s plugin:\nmodule Jekyll class ImageTag \u0026lt; Liquid::Tag @url = nil @caption = nil @class = nil @link = nil // Patterns IMAGE_URL_WITH_CLASS_AND_CAPTION = IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK = /(\\w+)(\\s+)((https?:\\/\\/|\\/)(\\S+))(\\s+)\u0026quot;(.*?)\u0026quot;(\\s+)-\u0026gt;((https?:\\/\\/|\\/)(\\S+))(\\s*)/i IMAGE_URL_WITH_CAPTION = /((https?:\\/\\/|\\/)(\\S+))(\\s+)\u0026quot;(.*?)\u0026quot;/i IMAGE_URL_WITH_CLASS = /(\\w+)(\\s+)((https?:\\/\\/|\\/)(\\S+))/i IMAGE_URL = /((https?:\\/\\/|\\/)(\\S+))/i def initialize(tag_name, markup, tokens) super if markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK @class = $1 @url = $3 @caption = $7 @link = $9 elsif markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION @class = $1 @url = $3 @caption = $7 elsif markup =~ IMAGE_URL_WITH_CAPTION @url = $1 @caption = $5 elsif markup =~ IMAGE_URL_WITH_CLASS @class = $1 @url = $3 elsif markup =~ IMAGE_URL @url = $1 end end def render(context) if @class source = \u0026quot;\u0026lt;figure class='#{@class}'\u0026gt;\u0026quot; else source = \u0026quot;\u0026lt;figure\u0026gt;\u0026quot; end if @link source += \u0026quot;\u0026lt;a href=\\\u0026quot;#{@link}\\\u0026quot;\u0026gt;\u0026quot; end source += \u0026quot;\u0026lt;img src=\\\u0026quot;#{@url}\\\u0026quot;\u0026gt;\u0026quot; if @link source += \u0026quot;\u0026lt;/a\u0026gt;\u0026quot; end source += \u0026quot;\u0026lt;figcaption\u0026gt;#{@caption}\u0026lt;/figcaption\u0026gt;\u0026quot; if @caption source += \u0026quot;\u0026lt;/figure\u0026gt;\u0026quot; source end end end Liquid::Template.register_tag('image', Jekyll::ImageTag) is written as this Hugo shortcode:\n\u0026lt;!-- image --\u0026gt; \u0026lt;figure {{ with .Get \u0026quot;class\u0026quot; }}class=\u0026quot;{{.}}\u0026quot;{{ end }}\u0026gt; {{ with .Get \u0026quot;link\u0026quot;}}\u0026lt;a href=\u0026quot;{{.}}\u0026quot;\u0026gt;{{ end }} \u0026lt;img src=\u0026quot;{{ .Get \u0026quot;src\u0026quot; }}\u0026quot; {{ if or (.Get \u0026quot;alt\u0026quot;) (.Get \u0026quot;caption\u0026quot;) }}alt=\u0026quot;{{ with .Get \u0026quot;alt\u0026quot;}}{{.}}{{else}}{{ .Get \u0026quot;caption\u0026quot; }}{{ end }}\u0026quot;{{ end }} /\u0026gt; {{ if .Get \u0026quot;link\u0026quot;}}\u0026lt;/a\u0026gt;{{ end }} {{ if or (or (.Get \u0026quot;title\u0026quot;) (.Get \u0026quot;caption\u0026quot;)) (.Get \u0026quot;attr\u0026quot;)}} \u0026lt;figcaption\u0026gt;{{ if isset .Params \u0026quot;title\u0026quot; }} {{ .Get \u0026quot;title\u0026quot; }}{{ end }} {{ if or (.Get \u0026quot;caption\u0026quot;) (.Get \u0026quot;attr\u0026quot;)}}\u0026lt;p\u0026gt; {{ .Get \u0026quot;caption\u0026quot; }} {{ with .Get \u0026quot;attrlink\u0026quot;}}\u0026lt;a href=\u0026quot;{{.}}\u0026quot;\u0026gt; {{ end }} {{ .Get \u0026quot;attr\u0026quot; }} {{ if .Get \u0026quot;attrlink\u0026quot;}}\u0026lt;/a\u0026gt; {{ end }} \u0026lt;/p\u0026gt; {{ end }} \u0026lt;/figcaption\u0026gt; {{ end }} \u0026lt;/figure\u0026gt; \u0026lt;!-- image --\u0026gt; Usage # I simply changed:\n{% image full http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg \u0026quot;One of my favorite touristy-type photos. I secretly waited for the good light while we were \u0026quot;having fun\u0026quot; and took this. Only regret: a stupid pole in the top-left corner of the frame I had to clumsily get rid of at post-processing.\u0026quot; -\u0026gt;http://www.flickr.com/photos/alexnormand/4829260124/in/set-72157624547713078/ %} to this (this example uses a slightly extended version named fig, different than the built-in figure):\n{{% fig class=\u0026quot;full\u0026quot; src=\u0026quot;http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg\u0026quot; title=\u0026quot;One of my favorite touristy-type photos. I secretly waited for the good light while we were having fun and took this. Only regret: a stupid pole in the top-left corner of the frame I had to clumsily get rid of at post-processing.\u0026quot; link=\u0026quot;http://www.flickr.com/photos/alexnormand/4829260124/in/set-72157624547713078/\u0026quot; %}} As a bonus, the shortcode named parameters are, arguably, more readable.\nFinishing touches # Fix content # Depending on the amount of customization that was done with each post with Jekyll, this step will require more or less effort. There are no hard and fast rules here except that hugo server --watch is your friend. Test your changes and fix errors as needed.\nClean up # You\u0026rsquo;ll want to remove the Jekyll configuration at this point. If you have anything else that isn\u0026rsquo;t used, delete it.\nA practical example in a diff # Hey, it\u0026rsquo;s Alex was migrated in less than a father-with-kids day from Jekyll to Hugo. You can see all the changes (and screw-ups) by looking at this diff.\n"},{"id":4,"href":"/docs/topic/array/","title":"1.01 Array","section":"Topic","content":" Caput vino delphine in tamen vias # Cognita laeva illo fracta # Lorem markdownum pavent auras, surgit nunc cingentibus libet Laomedonque que est. Pastor An arbor filia foedat, ne fugit aliter, per. Helicona illas et callida neptem est Oresitrophos caput, dentibus est venit. Tenet reddite famuli praesentem fortibus, quaeque vis foret si frondes gelidos gravidae circumtulit inpulit armenta nativum.\nTe at cruciabere vides rubentis manebo Maturuit in praetemptat ruborem ignara postquam habitasse Subitarum supplevit quoque fontesque venabula spretis modo Montis tot est mali quasque gravis Quinquennem domus arsit ipse Pellem turis pugnabant locavit Natus quaerere # Pectora et sine mulcere, coniuge dum tincta incurvae. Quis iam; est dextra Peneosque, metuis a verba, primo. Illa sed colloque suis: magno: gramen, aera excutiunt concipit.\nPhrygiae petendo suisque extimuit, super, pars quod audet! Turba negarem. Fuerat attonitus; et dextra retinet sidera ulnas undas instimulat vacuae generis? Agnus dabat et ignotis dextera, sic tibi pacis feriente at mora euhoeque comites hostem vestras Phineus. Vultuque sanguine dominoque metuit risi fama vergit summaque meus clarissimus artesque tinguebat successor nominis cervice caelicolae.\nLimitibus misere sit # Aurea non fata repertis praerupit feruntur simul, meae hosti lentaque citius levibus, cum sede dixit, Phaethon texta. Albentibus summos multifidasque iungitur loquendi an pectore, mihi ursaque omnia adfata, aeno parvumque in animi perlucentes. Epytus agis ait vixque clamat ornum adversam spondet, quid sceptra ipsum est. Reseret nec; saeva suo passu debentia linguam terga et aures et cervix de ubera. Coercet gelidumque manus, doluit volvitur induta?\nEnim sua # Iuvenilior filia inlustre templa quidem herbis permittat trahens huic. In cruribus proceres sole crescitque fata, quos quos; merui maris se non tamen in, mea.\nGermana aves pignus tecta # Mortalia rudibusque caelum cognosceret tantum aquis redito felicior texit, nec, aris parvo acre. Me parum contulerant multi tenentem, gratissime suis; vultum tu occupat deficeret corpora, sonum. E Actaea inplevit Phinea concepit nomenque potest sanguine captam nulla et, in duxisses campis non; mercede. Dicere cur Leucothoen obitum?\nPostibus mittam est nubibus principium pluma, exsecratur facta et. Iunge Mnemonidas pallamque pars; vere restitit alis flumina quae quoque, est ignara infestus Pyrrha. Di ducis terris maculatum At sede praemia manes nullaque!\n"},{"id":5,"href":"/docs/topic/linked-list/","title":"1.02 Linked List","section":"Topic","content":" At me ipso nepotibus nunc celebratior genus # Tanto oblite # Lorem markdownum pectora novis patenti igne sua opus aurae feras materiaque illic demersit imago et aristas questaque posset. Vomit quoque suo inhaesuro clara. Esse cumque, per referri triste. Ut exponit solisque communis in tendens vincetis agisque iamque huic bene ante vetat omina Thebae rates. Aeacus servat admonitu concidit, ad resimas vultus et rugas vultu dignamque Siphnon.\nQuam iugulum regia simulacra, plus meruit humo pecorumque haesit, ab discedunt dixit: ritu pharetramque. Exul Laurenti orantem modo, per densum missisque labor manibus non colla unum, obiectat. Tu pervia collo, fessus quae Cretenque Myconon crate! Tegumenque quae invisi sudore per vocari quaque plus ventis fluidos. Nodo perque, fugisse pectora sorores.\nSumme promissa supple vadit lenius # Quibus largis latebris aethera versato est, ait sentiat faciemque. Aequata alis nec Caeneus exululat inclite corpus est, ire tibi ostendens et tibi. Rigent et vires dique possent lumina; eadem dixit poma funeribus paret et felix reddebant ventis utile lignum.\nRemansit notam Stygia feroxque Et dabit materna Vipereas Phrygiaeque umbram sollicito cruore conlucere suus Quarum Elis corniger Nec ieiunia dixit Vertitur mos ortu ramosam contudit dumque; placabat ac lumen. Coniunx Amoris spatium poenamque cavernis Thebae Pleiadasque ponunt, rapiare cum quae parum nimium rima.\nQuidem resupinus inducto solebat una facinus quae # Credulitas iniqua praepetibus paruit prospexit, voce poena, sub rupit sinuatur, quin suum ventorumque arcadiae priori. Soporiferam erat formamque, fecit, invergens, nymphae mutat fessas ait finge.\nBaculum mandataque ne addere capiti violentior Altera duas quam hoc ille tenues inquit Sicula sidereus latrantis domoque ratae polluit comites Possit oro clausura namque se nunc iuvenisque Faciem posuit Quodque cum ponunt novercae nata vestrae aratra Ite extrema Phrygiis, patre dentibus, tonso perculit, enim blanda, manibus fide quos caput armis, posse! Nocendo fas Alcyonae lacertis structa ferarum manus fulmen dubius, saxa caelum effuge extremis fixum tumor adfecit bella, potentes? Dum nec insidiosa tempora tegit spirarunt. Per lupi pars foliis, porreximus humum negant sunt subposuere Sidone steterant auro. Memoraverit sine: ferrum idem Orion caelum heres gerebat fixis?\n"},{"id":6,"href":"/posts/goisforlovers/","title":"(Hu)go Template Primer","section":"Blog","content":"Hugo uses the excellent Go html/template library for its template engine. It is an extremely lightweight engine that provides a very small amount of logic. In our experience that it is just the right amount of logic to be able to create a good static website. If you have used other template systems from different languages or frameworks you will find a lot of similarities in Go templates.\nThis document is a brief primer on using Go templates. The Go docs provide more details.\nIntroduction to Go Templates # Go templates provide an extremely simple template language. It adheres to the belief that only the most basic of logic belongs in the template or view layer. One consequence of this simplicity is that Go templates parse very quickly.\nA unique characteristic of Go templates is they are content aware. Variables and content will be sanitized depending on the context of where they are used. More details can be found in the Go docs.\nBasic Syntax # Golang templates are HTML files with the addition of variables and functions.\nGo variables and functions are accessible within {{ }}\nAccessing a predefined variable \u0026ldquo;foo\u0026rdquo;:\n{{ foo }} Parameters are separated using spaces\nCalling the add function with input of 1, 2:\n{{ add 1 2 }} Methods and fields are accessed via dot notation\nAccessing the Page Parameter \u0026ldquo;bar\u0026rdquo;\n{{ .Params.bar }} Parentheses can be used to group items together\n{{ if or (isset .Params \u0026quot;alt\u0026quot;) (isset .Params \u0026quot;caption\u0026quot;) }} Caption {{ end }} Variables # Each Go template has a struct (object) made available to it. In hugo each template is passed either a page or a node struct depending on which type of page you are rendering. More details are available on the variables page.\nA variable is accessed by referencing the variable name.\n\u0026lt;title\u0026gt;{{ .Title }}\u0026lt;/title\u0026gt; Variables can also be defined and referenced.\n{{ $address := \u0026quot;123 Main St.\u0026quot;}} {{ $address }} Functions # Go template ship with a few functions which provide basic functionality. The Go template system also provides a mechanism for applications to extend the available functions with their own. Hugo template functions provide some additional functionality we believe are useful for building websites. Functions are called by using their name followed by the required parameters separated by spaces. Template functions cannot be added without recompiling hugo.\nExample:\n{{ add 1 2 }} Includes # When including another template you will pass to it the data it will be able to access. To pass along the current context please remember to include a trailing dot. The templates location will always be starting at the /layout/ directory within Hugo.\nExample:\n{{ template \u0026quot;chrome/header.html\u0026quot; . }} Logic # Go templates provide the most basic iteration and conditional logic.\nIteration # Just like in Go, the Go templates make heavy use of range to iterate over a map, array or slice. The following are different examples of how to use range.\nExample 1: Using Context\n{{ range array }} {{ . }} {{ end }} Example 2: Declaring value variable name\n{{range $element := array}} {{ $element }} {{ end }} Example 2: Declaring key and value variable name\n{{range $index, $element := array}} {{ $index }} {{ $element }} {{ end }} Conditionals # If, else, with, or, \u0026amp; and provide the framework for handling conditional logic in Go Templates. Like range, each statement is closed with end.\nGo Templates treat the following values as false:\nfalse 0 any array, slice, map, or string of length zero Example 1: If\n{{ if isset .Params \u0026quot;title\u0026quot; }}\u0026lt;h4\u0026gt;{{ index .Params \u0026quot;title\u0026quot; }}\u0026lt;/h4\u0026gt;{{ end }} Example 2: If -\u0026gt; Else\n{{ if isset .Params \u0026quot;alt\u0026quot; }} {{ index .Params \u0026quot;alt\u0026quot; }} {{else}} {{ index .Params \u0026quot;caption\u0026quot; }} {{ end }} Example 3: And \u0026amp; Or\n{{ if and (or (isset .Params \u0026quot;title\u0026quot;) (isset .Params \u0026quot;caption\u0026quot;)) (isset .Params \u0026quot;attr\u0026quot;)}} Example 4: With\nAn alternative way of writing \u0026ldquo;if\u0026rdquo; and then referencing the same value is to use \u0026ldquo;with\u0026rdquo; instead. With rebinds the context . within its scope, and skips the block if the variable is absent.\nThe first example above could be simplified as:\n{{ with .Params.title }}\u0026lt;h4\u0026gt;{{ . }}\u0026lt;/h4\u0026gt;{{ end }} Example 5: If -\u0026gt; Else If\n{{ if isset .Params \u0026quot;alt\u0026quot; }} {{ index .Params \u0026quot;alt\u0026quot; }} {{ else if isset .Params \u0026quot;caption\u0026quot; }} {{ index .Params \u0026quot;caption\u0026quot; }} {{ end }} Pipes # One of the most powerful components of Go templates is the ability to stack actions one after another. This is done by using pipes. Borrowed from unix pipes, the concept is simple, each pipeline\u0026rsquo;s output becomes the input of the following pipe.\nBecause of the very simple syntax of Go templates, the pipe is essential to being able to chain together function calls. One limitation of the pipes is that they only can work with a single value and that value becomes the last parameter of the next pipeline.\nA few simple examples should help convey how to use the pipe.\nExample 1 :\n{{ if eq 1 1 }} Same {{ end }} is the same as\n{{ eq 1 1 | if }} Same {{ end }} It does look odd to place the if at the end, but it does provide a good illustration of how to use the pipes.\nExample 2 :\n{{ index .Params \u0026quot;disqus_url\u0026quot; | html }} Access the page parameter called \u0026ldquo;disqus_url\u0026rdquo; and escape the HTML.\nExample 3 :\n{{ if or (or (isset .Params \u0026quot;title\u0026quot;) (isset .Params \u0026quot;caption\u0026quot;)) (isset .Params \u0026quot;attr\u0026quot;)}} Stuff Here {{ end }} Could be rewritten as\n{{ isset .Params \u0026quot;caption\u0026quot; | or isset .Params \u0026quot;title\u0026quot; | or isset .Params \u0026quot;attr\u0026quot; | if }} Stuff Here {{ end }} Context (aka. the dot) # The most easily overlooked concept to understand about Go templates is that {{ . }} always refers to the current context. In the top level of your template this will be the data set made available to it. Inside of a iteration it will have the value of the current item. When inside of a loop the context has changed. . will no longer refer to the data available to the entire page. If you need to access this from within the loop you will likely want to set it to a variable instead of depending on the context.\nExample:\n{{ $title := .Site.Title }} {{ range .Params.tags }} \u0026lt;li\u0026gt; \u0026lt;a href=\u0026quot;{{ $baseurl }}/tags/{{ . | urlize }}\u0026quot;\u0026gt;{{ . }}\u0026lt;/a\u0026gt; - {{ $title }} \u0026lt;/li\u0026gt; {{ end }} Notice how once we have entered the loop the value of {{ . }} has changed. We have defined a variable outside of the loop so we have access to it from within the loop.\nHugo Parameters # Hugo provides the option of passing values to the template language through the site configuration (for sitewide values), or through the meta data of each specific piece of content. You can define any values of any type (supported by your front matter/config format) and use them however you want to inside of your templates.\nUsing Content (page) Parameters # In each piece of content you can provide variables to be used by the templates. This happens in the front matter.\nAn example of this is used in this documentation site. Most of the pages benefit from having the table of contents provided. Sometimes the TOC just doesn\u0026rsquo;t make a lot of sense. We\u0026rsquo;ve defined a variable in our front matter of some pages to turn off the TOC from being displayed.\nHere is the example front matter:\n--- title: \u0026#34;Permalinks\u0026#34; date: \u0026#34;2013-11-18\u0026#34; aliases: - \u0026#34;/doc/permalinks/\u0026#34; groups: [\u0026#34;extras\u0026#34;] groups_weight: 30 notoc: true --- Here is the corresponding code inside of the template:\n{{ if not .Params.notoc }} \u0026lt;div id=\u0026quot;toc\u0026quot; class=\u0026quot;well col-md-4 col-sm-6\u0026quot;\u0026gt; {{ .TableOfContents }} \u0026lt;/div\u0026gt; {{ end }} Using Site (config) Parameters # In your top-level configuration file (eg, config.yaml) you can define site parameters, which are values which will be available to you in chrome.\nFor instance, you might declare:\nparams: CopyrightHTML: \u0026#34;Copyright \u0026amp;#xA9; 2013 John Doe. All Rights Reserved.\u0026#34; TwitterUser: \u0026#34;spf13\u0026#34; SidebarRecentLimit: 5 Within a footer layout, you might then declare a \u0026lt;footer\u0026gt; which is only provided if the CopyrightHTML parameter is provided, and if it is given, you would declare it to be HTML-safe, so that the HTML entity is not escaped again. This would let you easily update just your top-level config file each January 1st, instead of hunting through your templates.\n{{if .Site.Params.CopyrightHTML}}\u0026lt;footer\u0026gt; \u0026lt;div class=\u0026#34;text-center\u0026#34;\u0026gt;{{.Site.Params.CopyrightHTML | safeHtml}}\u0026lt;/div\u0026gt; \u0026lt;/footer\u0026gt;{{end}} An alternative way of writing the \u0026ldquo;if\u0026rdquo; and then referencing the same value is to use \u0026ldquo;with\u0026rdquo; instead. With rebinds the context . within its scope, and skips the block if the variable is absent:\n{{with .Site.Params.TwitterUser}}\u0026lt;span class=\u0026#34;twitter\u0026#34;\u0026gt; \u0026lt;a href=\u0026#34;https://twitter.com/{{.}}\u0026#34; rel=\u0026#34;author\u0026#34;\u0026gt; \u0026lt;img src=\u0026#34;/images/twitter.png\u0026#34; width=\u0026#34;48\u0026#34; height=\u0026#34;48\u0026#34; title=\u0026#34;Twitter: {{.}}\u0026#34; alt=\u0026#34;Twitter\u0026#34;\u0026gt;\u0026lt;/a\u0026gt; \u0026lt;/span\u0026gt;{{end}} Finally, if you want to pull \u0026ldquo;magic constants\u0026rdquo; out of your layouts, you can do so, such as in this example:\n\u0026lt;nav class=\u0026#34;recent\u0026#34;\u0026gt; \u0026lt;h1\u0026gt;Recent Posts\u0026lt;/h1\u0026gt; \u0026lt;ul\u0026gt;{{range first .Site.Params.SidebarRecentLimit .Site.Recent}} \u0026lt;li\u0026gt;\u0026lt;a href=\u0026#34;{{.RelPermalink}}\u0026#34;\u0026gt;{{.Title}}\u0026lt;/a\u0026gt;\u0026lt;/li\u0026gt; {{end}}\u0026lt;/ul\u0026gt; \u0026lt;/nav\u0026gt; "},{"id":7,"href":"/posts/hugoisforlovers/","title":"Getting Started with Hugo","section":"Blog","content":" Step 1. Install Hugo # Go to Hugo releases and download the appropriate version for your OS and architecture.\nSave it somewhere specific as we will be using it in the next step.\nMore complete instructions are available at Install Hugo\nStep 2. Build the Docs # Hugo has its own example site which happens to also be the documentation site you are reading right now.\nFollow the following steps:\nClone the Hugo repository Go into the repo Run hugo in server mode and build the docs Open your browser to http://localhost:1313 Corresponding pseudo commands:\ngit clone https://github.com/spf13/hugo cd hugo /path/to/where/you/installed/hugo server --source=./docs \u0026gt; 29 pages created \u0026gt; 0 tags index created \u0026gt; in 27 ms \u0026gt; Web Server is available at http://localhost:1313 \u0026gt; Press ctrl+c to stop Once you\u0026rsquo;ve gotten here, follow along the rest of this page on your local build.\nStep 3. Change the docs site # Stop the Hugo process by hitting Ctrl+C.\nNow we are going to run hugo again, but this time with hugo in watch mode.\n/path/to/hugo/from/step/1/hugo server --source=./docs --watch \u0026gt; 29 pages created \u0026gt; 0 tags index created \u0026gt; in 27 ms \u0026gt; Web Server is available at http://localhost:1313 \u0026gt; Watching for changes in /Users/spf13/Code/hugo/docs/content \u0026gt; Press ctrl+c to stop Open your favorite editor and change one of the source content pages. How about changing this very file to fix the typo. How about changing this very file to fix the typo.\nContent files are found in docs/content/. Unless otherwise specified, files are located at the same relative location as the url, in our case docs/content/overview/quickstart.md.\nChange and save this file.. Notice what happened in your terminal.\n\u0026gt; Change detected, rebuilding site \u0026gt; 29 pages created \u0026gt; 0 tags index created \u0026gt; in 26 ms Refresh the browser and observe that the typo is now fixed.\nNotice how quick that was. Try to refresh the site before it\u0026rsquo;s finished building. I double dare you. Having nearly instant feedback enables you to have your creativity flow without waiting for long builds.\nStep 4. Have fun # The best way to learn something is to play with it.\n"},{"id":8,"href":"/docs/codes/0001-to-0099/0002.-Add-Two-Numbers/","title":"0002. Add Two Numbers","section":"0001 to 0099","content":" 2. Add Two Numbers # 题目 # 给定两个非空的链表，表示两个非负的整数。它们每位数字都是按照逆序的方式存储的，并且每个节点只能存储一位数字。 将两个数相加，并以相同形式返回一个表示和的链表。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode helper(ListNode l1, ListNode l2, int carry) { if (l1 == null \u0026amp;\u0026amp; l2 == null) { return carry != 0 ? new ListNode(carry, null) : null; } else if (l1 != null \u0026amp;\u0026amp; l2 == null) { return new ListNode((l1.val + carry) % 10, helper(l1.next, null, (l1.val + carry) / 10)); } else if (l1 == null \u0026amp;\u0026amp; l2 != null) { return new ListNode((l2.val + carry) % 10, helper(null, l2.next, (l2.val + carry) / 10)); } else { ListNode head = new ListNode((l1.val + l2.val + carry) % 10, null); head.next = helper(l1.next, l2.next, (l1.val + l2.val + carry) / 10); return head; } } public ListNode addTwoNumbers(ListNode l1, ListNode l2) { return helper(l1, l2, 0); } } "},{"id":9,"href":"/docs/codes/0001-to-0099/0019.-Remove-Nth-Node-from-End-of-List/","title":"0019. Remove Nth Node From End of List","section":"0001 to 0099","content":" 19. Remove Nth Node from End of List # 题目 # 给定链表，要求删除链表的倒数第 n 个结点，并且返回链表的头结点。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode removeNthFromEnd(ListNode head, int n) { ListNode sentinel = new ListNode(-1, head); ListNode slow = sentinel, fast = slow; for (int i=0; i\u0026lt;n+1; i++) fast = fast.next; while (fast != null) { slow = slow.next; fast = fast.next; slow.next = slow.next.next; } return sentinel.next; } } "},{"id":10,"href":"/docs/codes/0001-to-0099/0021.-Merge-Two-Sorted-Lists/","title":"0021. Merge Two Sorted Lists","section":"0001 to 0099","content":" 21. 合并两个有序链表 # 题目 # 将两个升序链表合并为一个新的升序链表并返回。新链表是通过拼接给定的两个链表的所有节点组成的。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode mergeTwoLists(ListNode list1, ListNode list2) { if (list1 == null) return list2; if (list2 == null) return list1; if (list1.val \u0026lt; list2.val) { list1.next = mergeTwoLists(list1.next, list2); return list1; } else { list2.next = mergeTwoLists(list1, list2.next); return list2; } } } "},{"id":11,"href":"/docs/codes/0001-to-0099/0024.-Swap-Nodes-in-pairs/","title":"0024. Swap Nodes in Pairs","section":"0001 to 0099","content":" 24. Swap Nodes in Pairs # 题目 # 给定链表，两两交换其中相邻的节点，并返回交换后链表的头节点。只能进行节点交换，不能修改节点内部的值。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode swapPairs(ListNode head) { if (head == null || head.next == null) return head; else { ListNode newHead = head.next; head.next = swapPairs(newHead.next); newHead.next = head; return newHead; } } } "},{"id":12,"href":"/docs/codes/0001-to-0099/0027.-Remove-Element/","title":"0027. Remove Element","section":"0001 to 0099","content":" 27. Remove Element # 题目 # 给定一个数组nums和一个值val，原地移除所有值等于val的元素，并返回移除后数组的新长度。\n要求使用O(1)额外空间并原地修改输入数组。\n思路 # 代码 # class Solution { public int removeElements(int[] nums, int val) { int sz = 0; for (int ptr = 0; ptr \u0026lt; nums.length; ptr++) if (nums[ptr] != val) nums[sz++] = nums[ptr]; return sz; } } "},{"id":13,"href":"/docs/codes/0001-to-0099/0054.-Spiral-Matrix/","title":"0054. Spiral Matrix","section":"0001 to 0099","content":" 54. Spiral Matrix # 题目 # 给定一个m行n列的矩阵matrix，按照顺时针螺旋顺序，返回矩阵中的所有元素。\n思路 # 代码 # class Solution { public void circle(int[][] matrix, List\u0026lt;Integer\u0026gt; result, int top, int left, int right, int bottom) { if (top \u0026gt; bottom || left \u0026gt; right) return; if (top == bottom) { for (int j=left; j\u0026lt;=right; j++) result.add(matrix[top][j]); return; } else if (left == right) { for (int i=top; i\u0026lt;=bottom; i++) result.add(matrix[i][left]); return; } for (int j=left; j\u0026lt;right; j++) result.add(matrix[top][j]); for (int i=top; i\u0026lt;bottom; i++) result.add(matrix[i][right]); for (int j=right; j\u0026gt;left; j--) result.add(matrix[bottom][j]); for (int i=bottom; i\u0026gt;top; i--) result.add(matrix[i][left]); circle(matrix, result, top+1, left+1, right-1, bottom-1); } public List\u0026lt;Integer\u0026gt; spiralOrder(int[][] matrix) { int m = matrix.length, n = matrix[0].length; List\u0026lt;Integer\u0026gt; result = new ArrayList\u0026lt;Integer\u0026gt;(); circle(matrix, result, 0, 0, n-1, m-1); return result; } } 致谢 # 宫水三叶 "},{"id":14,"href":"/docs/codes/0001-to-0099/0059.-Spiral-Matrix-ii/","title":"0059. Spiral Matrix Ii","section":"0001 to 0099","content":" 59. Spiral Matrix II # 题目 # 给定正整数n，生成一个包含1到n^2所有元素，且元素按顺时针顺序螺旋排列的nxn正方形矩阵matrix。\n思路 # 对于n阶方阵，共有n/2个完整螺旋。\n若n为奇数，则matrix[n/2][n/2]处存在独立元素n^2，不构成螺旋，应单独考虑。\n对于第offset个螺旋，考虑四角元素的坐标，由左上顺时针分别为：\n(offset, offset)、(offset, n-offset-1)、(n-offset-1, n-offset-1)、(n-offset-1, offset)\n分别添加螺旋[上]、螺旋[右]、螺旋[下]、螺旋[左]四条边的元素，添加过程中保持区间左闭右开的一致性。\n代码 # class Solution { public int[][] generateMatrix(int n) { int[][] matrix = new int [n][n]; int val = 1; for (int offset=0; offset\u0026lt;n/2; offset++) { for (int j=offset; j\u0026lt;n-offset-1; j++) matrix[offset][j] = val++; for (int i=offset; i\u0026lt;n-offset-1; i++) matrix[i][n-offset-1] = val++; for (int j=n-offset-1; j\u0026gt;offset; j--) matrix[n-offset-1][j] = val++; for (int i=n-offset-1; i\u0026gt;offset; i--) matrix[i][offset] = val++; } if (n % 2 == 1) matrix[n/2][n/2] = n*n; return matrix; } } "},{"id":15,"href":"/docs/codes/0001-to-0099/0082.-Remove-Duplicates-from-Sorted-List-ii/","title":"0082. Remove Duplicates From Sorted List Ii","section":"0001 to 0099","content":" 82. Remove Duplicates from Sorted List II # 题目 # 给定排序链表的头节点head，删除原始链表中所有重复数字的节点，只留下不同的数字。返回已排序的链表。\n链表数据保证链表已经按升序排列。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode deleteDuplicates(ListNode head) { ListNode sentinel = new ListNode(-1, null); ListNode preserve = sentinel, anchor = head; while (anchor != null) { ListNode probe = anchor.next; if (probe == null || probe.val != anchor.val) { preserve.next = anchor; preserve = anchor; preserve.next = null; } else while (probe != null \u0026amp;\u0026amp; probe.val == anchor.val) probe = probe.next; anchor = probe; } return sentinel.next; } } "},{"id":16,"href":"/docs/codes/0001-to-0099/0083.-Remove-Duplicates-from-Sorted-List/","title":"0083. Remove Duplicates From Sorted List","section":"0001 to 0099","content":" 83. Remove Duplicates from Sorted List # 题目 # 给定排序链表的头节点head，删除所有重复元素，使每个元素只出现一次。返回已排序的链表。\n链表数据保证链表已经按升序排列。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode deleteDuplicates(ListNode head) { ListNode ptr = head; while (ptr != null \u0026amp;\u0026amp; ptr.next != null) { if (ptr.next.val == ptr.val) ptr.next = ptr.next.next; else ptr = ptr.next; } return head; } } "},{"id":17,"href":"/docs/codes/0001-to-0099/0092.-Reverse-Linked-List-ii/","title":"0092. Reverse Linked List Ii","section":"0001 to 0099","content":" 92. Reverse Linked List ii # 题目 # 给定单链表头节点head和两个整数left和right，其中left \u0026lt;= right。反转从位置left到位置right的链表节点，返回反转后的链表。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public void reverseList(ListNode head, ListNode tail) { if (head == tail) return; reverseList(head.next, tail); head.next.next = head; } public ListNode reverseBetween(ListNode head, int left, int right) { ListNode sentinel = new ListNode(-1, head); ListNode beforeLeft = sentinel, ptrRight = sentinel; for (int i=0; i\u0026lt;left-1; i++) beforeLeft = beforeLeft.next; for (int i=0; i\u0026lt;right; i++) ptrRight = ptrRight.next; ListNode ptrLeft = beforeLeft.next, afterRight = ptrRight.next; reverseList(ptrLeft, ptrRight); beforeLeft.next = ptrRight; ptrLeft.next = afterRight; return sentinel.next; } } "},{"id":18,"href":"/docs/codes/0100-to-0199/0141.-Linked-List-Cycle/","title":"0141. Linked List Cycle","section":"0100 to 0199","content":" 141. Linked List Cycle # 题目 # 给定链表头节点 head ，判断链表中是否有环。\n如果链表中有某个节点，可以通过连续跟踪 next 指针再次到达，则链表中存在环。\n如果链表中存在环 ，则返回 true 。 否则，返回 false 。\n思路 # 代码 # class ListNode { int val; ListNode next; ListNode (int x) { val = x; next = null; } } public class Solution { public boolean hasCycle(ListNode head) { ListNode slow=head, fast=head; while (fast != null \u0026amp;\u0026amp; fast.next != null) { fast = fast.next.next; slow = slow.next; if (slow == fast) return true; } return false; } } "},{"id":19,"href":"/docs/codes/0100-to-0199/0142.-Linked-List-Cycle-ii/","title":"0142. Linked List Cycle Ii","section":"0100 to 0199","content":" 142. Linked List Cycle II # 题目 # 给定链表头节点 head ，返回链表开始入环的第一个节点。 如果链表无环，则返回 null。\n不允许修改 链表。\n思路 # 设head至环入口距离为x，环入口至相遇处距离为y，相遇处至环入口距离为z assert: 相遇时slow指针在环内尚未走过完整的一圈。 proof: 若slow指针在环入口处与fast指针相遇，则此时slow指针尚未走过完整的一圈。若slow指针在环入口处尚未与fast指针相遇，则此时slow指针与fast指针的相对距离小于一圈，又因为fast指针追击slow指针的相对速度为1，则在slow指针尚未走过一圈的时间内，fast指针就将追击slow指针。故相遇时slow指针在环内尚未走过完整的一圈。 相遇时slow指针走过的距离可表示为x+y，fast指针走过的距离可表示为x+n(y+z)+y 有等式2(x+y) = x+y+n(y+z)，化简有x=(n-1)(y+z) + z 新建指针ptr指向head。令fast指针与ptr指针同时以速度1向前移动，则fast指针与ptr指针将在环入口处相遇。 代码 # class ListNode { int val; ListNode next; ListNode (int x) { val = x; next = null; } } public class Solution { public ListNode detectCycle(ListNode head) { ListNode slow = head, fast = head; while (fast != null \u0026amp;\u0026amp; fast.next != null) { fast = fast.next.next; slow = slow.next; if (slow == fast) { ListNode ptr = head; while (ptr != fast) { ptr = ptr.next; fast = fast.next; } return fase; } } return null; } } "},{"id":20,"href":"/docs/codes/0100-to-0199/0160.-Intersection-of-Two-Linked-List/","title":"0160. Intersection of Two Linked List","section":"0100 to 0199","content":" 160. Intersection of Two Linked Lists # 题目 # 给定两个单链表的头节点headA和headB，找出并返回两个单链表相交的起始节点。如果两个链表不存在相交节点，返回null。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode(int x) { val = x; next = null; } } public class Solution { public ListNode getIntersectionNode(ListNode headA, ListNode headB) { if (headA == null || headB == null) return null; ListNode ptrA = headA, ptrB = headB; while (ptrA != ptrB) { ptrA = ptrA.next; ptrB = ptrB.next; if (ptrA == null \u0026amp;\u0026amp; ptrB == null) return null; else if (ptrA == null) ptrA = headB; else if (ptrB == null) ptrB = headA; } return ptrA; } } "},{"id":21,"href":"/docs/codes/0200-to-0299/0203.-Remove-Linked-List-Elements/","title":"0203. Remove Linked List Elements","section":"0200 to 0299","content":" 203. Remove Linked List Elements # 题目 # 给定链表头节点head和一个整数val，删除链表中所有满足Node.val == val的节点，并返回新的头节点。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode removeElements(ListNode head, int val) { if (head == null) return null; if (head.val == val) return removeElements(head.next, val); else { head.next = removeElements(head.next, val); return head; } } } "},{"id":22,"href":"/docs/codes/0200-to-0299/0206.-Reverse-Linked-List/","title":"0206. Reverse Linked List","section":"0200 to 0299","content":" 206. Reverse Linked List # 题目 # 给定单链表头节点head，反转并返回反转后的链表。\n思路 # 代码 # 递归 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode reverseList(ListNode head) { if (head == null || head.next == null) return head; ListNode newHead = reverseList(head.next); head.next.next = head; head.next = null; return newHead; } } 迭代 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode reverseList(ListNode head) { ListNode prev = null, cur = head, next = head.next; while (cur != null) { cur.next = prev; prev = cur; cur = next; if (next != null) next = next.next; } return prev; } } "},{"id":23,"href":"/docs/codes/0200-to-0299/0209.-Minimum-Size-Subarray-Sum/","title":"0209. Minimum Size Subarray Sum","section":"0200 to 0299","content":" 209. Minimum Size Subarray Sum # 题目 # 给定一个含有n个正整数的数组和一个正整数target。找出该数组中满足其和\u0026gt;=target的长度最小的连续子数组，并返回其长度。如果不存在符合条件的子数组，返回0。\n思路 # 代码 # class Solution { public int minSubArrayLen(int target, int[] nums) { if (nums == null) return 0; int left=0, right=0, len=0, cumSum=0; while (left \u0026lt;= right \u0026amp;\u0026amp; right \u0026lt; nums.length) { curSum += nums[right]; if (curSum \u0026gt;= target) { if (len == 0 || len \u0026gt; right-left+1) len = right-left+1; curSum -= nums[left]; left += 1; curSum -= nums[right]; } else right += 1; } return len; } } "},{"id":24,"href":"/docs/codes/0200-to-0299/0234.-Palindrome-Linked-List/","title":"0234. Palindrome Linked List","section":"0200 to 0299","content":" 234. Palindrome Linked List # 题目 # 给定单链表的头节点head，判断该链表是否为回文链表。\n考虑使用O(n)时间复杂度和O(1)空间复杂度解决此题。\n思路 # 分割、翻转 # 使用快慢指针找到链表中心节点。 如果链表长度为偶，则fast.next == null时，slow指向链表前半部分的最后一个节点。 如果链表长度为奇，则fast == null时，slow指向链表的轴节点。 使用迭代的方式以O(1)空间复杂度翻转链表的后半部分。 判断链表是否为回文链表。 将后半部分链表恢复原状，避免对链表的破坏。 返回结果。 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode locateMiddle(ListNode head) { ListNode slow = head, fast = head.next; while (fast != null \u0026amp;\u0026amp; fast.next != null) { slow = slow.next; fast = fast.next.next; } return slow; } public ListNode reverseList(ListNode head) { ListNode prev = null, cur = head, next = head.next; while (cur != null) { cur.next = prev; prev = cur; cur = next; if (next != null) next = next.next; } return prev; } public boolean compareList(ListNode ptrA, ListNode ptrB) { while (ptrA != null \u0026amp;\u0026amp; ptrB != null) { if (ptrA.val != ptrB.val) return false; ptrA = ptrA.next; ptrB = ptrB.next; } return true; } public boolean isPalindrome(ListNode head) { if (head == null || head.next == null) return true; ListNode middle = locateMiddle(head); ListNode tail = reverseList(middle.next); boolean isConsistent = compareList(head, tail); reverseList(middle.next); return isConsistent; } } "},{"id":25,"href":"/docs/codes/0200-to-0299/0237.-Delete-Nodes-in-A-Linked-List/","title":"0237. Delete Nodes in a Linked List","section":"0200 to 0299","content":" 237. Delete Node in A Linked List # 题目 # 有一个单链表的head，想要删除它的一个节点node。\n给定需要删除的节点node，并且无法访问第一个节点head。\n链表所有值都是唯一的，且给定的节点node不是链表中的最后一个节点。\n删除节点的意思是指：\n给定节点的值不应该存在于链表中。 链表中的节点数应该减少1。 node前面所有值的顺序相同。 node后面所有值的顺序相同。 思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public void deleteNode(ListNode node) { node.val = node.next.val; node.next = node.next.next; } } "},{"id":26,"href":"/docs/codes/0300-to-0399/0328.-Odd-Even-Linked-List/","title":"0328. Odd Even Linked List","section":"0300 to 0399","content":" 328. Odd Even Linked List # 题目 # 给定单链表头节点head，将所有索引为奇数的节点和所有索引为偶数的节点分别组合在一起，然后返回重新排序的链表。\n第一个节点的索引被认为是奇数，第二个节点的索引被认为是偶数，以此类推。\n偶数组和奇数组内部的相对顺序应该与输入时保持一致。\n需要在O(1)的额外空间复杂度和O(n)的时间复杂度下解决这个问题。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode oddEvenList(ListNode head) { if (head == null || head.next == null) return head; ListNode Odd = head, Even = head.next; ListNode ptrOdd = Odd, ptrEven = Even; while (ptrEven != null \u0026amp;\u0026amp; ptrEven.next != null) { ptrOdd.next = ptrEven.next; ptrOdd = ptrOdd.next; ptrEven.next = ptrOdd.next; ptrEven = ptrEven.next; } ptrOdd.next = Even; return Odd; } } "},{"id":27,"href":"/docs/codes/0700-to-0799/0704.-Binary-Search/","title":"0704. Binary Search","section":"0700 to 0799","content":" 704. Binary Search # 题目 # 给定一个n个元素有序的升序整型数组nums和一个目标值target，写一个函数搜索nums中的target，如果目标值存在返回下标，否则返回-1。\n思路 # 保持consistency不变量。\n代码 # class Solution { public int search(int[] nums, int target) { int left = 0, right = nums.length; while (left \u0026lt; right) { int medium = left + (right - left) / 2; if (nums[medium] == target) return medium; else if (nums[medium] \u0026gt; target) right = medium; else left = medium + 1; } return -1; } } "},{"id":28,"href":"/docs/codes/0700-to-0799/0707.-Design-Linked-List/","title":"0707. Design Linked List","section":"0700 to 0799","content":" 707. Design Linked List # 题目 # 设计链表的实现。可以选择使用单链表或双链表。\n在链表类中实现这些功能：\nget(index)：获取链表中第 index 个节点的值。如果索引无效，则返回-1。 addAtHead(val)：在链表的第一个元素之前添加一个值为 val 的节点。插入后，新节点将成为链表的第一个节点。 addAtTail(val)：将值为 val 的节点追加到链表的最后一个元素。 addAtIndex(index,val)：在链表中的第 index 个节点之前添加值为 val 的节点。如果 index 等于链表的长度，则该节点将附加到链表的末尾。如果 index 大于链表长度，则不会插入节点。如果index小于0，则在头部插入节点。 deleteAtIndex(index)：如果索引 index 有效，则删除链表中的第 index 个节点。 思路 # 代码 # public class ListNode { public ListNode prev; public ListNode next; public int val; public ListNode(ListNode prev, ListNode next, int val) { this.prev = prev; this.next = next; this.val = val; } } class MyLinkedList { private ListNode sentinel; private int size; public MyLinkedList() { this.sentinel = new ListNode(null, null, -1); this.sentinel.prev = this.sentinel; this.sentinel.next = this.sentinel; this.size = 0; } public int get(int index) { if (index \u0026lt; 0 || index \u0026gt;= this.size) return -1; ListNode ptr = this.sentinel.next; for (int i=0; i\u0026lt;index; i++) ptr = ptr.next; return ptr.val; } public void addAtHead(int val) { this.sentinel.next = new ListNode(this.sentinel, this.sentinel.next, val); this.sentinel.next.next.prev = this.sentinel.next; this.size += 1; } public void addAtTail(int val) { this.sentinel.prev = new ListNode(this.sentinel.prev, this.sentinel, val); this.sentinel.prev.prev.next = this.sentinel.pre; this.size += 1; } public void addAtIndex(int index, int val) { if (index \u0026lt;= 0) this.addAtHead(val); else if (index == this.size) this.addAtTail(val); else if (index \u0026gt; 0 \u0026amp;\u0026amp; index \u0026lt; this.size) { ListNode ptr = this.sentinel; for (int i=0; i\u0026lt;index; i++) ptr = ptr.next; ptr.next = new ListNode(ptr, ptr.next, val); ptr.next.next.prev = ptr.next; this.size += 1; } } public void deleteAtIndex(int index) { if (index == 0) { this.sentinel.next = this.sentinel.next.next; this.sentinel.next.prev = this.sentinel; this.size -= 1; } else if (index == this.size - 1) { this.sentinel.prev = this.sentinel.prev.prev; this.sentinel.prev.next = this.sentinel; this.size -= 1; } else if (index \u0026gt; 0 \u0026amp;\u0026amp; index \u0026lt; this.size - 1) { ListNode ptr = this.sentinel; for (int i=0; i\u0026lt;index; i++) ptr = ptr.next; ptr.next = ptr.next.next; ptr.next.prev = ptr; this.size -= 1; } } } "},{"id":29,"href":"/docs/codes/0800-to-0899/876.-Middle-of-the-Linked-List/","title":"876. Middle of the Linked List","section":"0800 to 0899","content":" 876. Middle of the Linked List # 题目 # 给定一个头结点为head的非空单链表，返回链表的中间结点。\n如果有两个中间结点，则返回第二个中间结点。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode middleNode(ListNode head) { ListNode sentinel = new ListNode(-1, head); ListNode middle = sentinel, fast = sentinel; while (fast != null \u0026amp;\u0026amp; fast.next != null) { middle = middle.next; fast = fast.next.next; } if (fast != null) middle = middle.next; return middle; } } "},{"id":30,"href":"/docs/codes/0900-to-0999/0977.-Squares-of-A-Sorted-Array/","title":"0977. Squares of a Sorted Array","section":"0900 to 0999","content":" 977. Squares of A Sorted Array # 题目 # 给定按 非递减顺序 排序的整型数组 nums，返回 每个数字的平方 组成的新数组，要求新数组也按 非递减顺序 排序。\n思路 # 代码 # class Solution { public int[] sortedSquares(int[] nums) { if (nums == null) return null; int sz = nums.length; int[] result = new int[sz]; if (nums[0] \u0026gt;= 0) for (int i=0; i\u0026lt;sz; i++) result[i] = nums[i] * nums[i]; else if (nums[sz-1] \u0026lt;= 0) for (int i=sz-1; i\u0026gt;=0; i--) result[sz-1] = nums[i] * nums[i]; else { int left=-1, right=nums.length; index=0; while (nums[left+1] \u0026lt; 0) left+=1; right = left + 1; while (left \u0026gt;= 0 \u0026amp;\u0026amp; right \u0026lt; sz) { if (-nums[left] \u0026lt; nums[right]) { result[index] = nums[left] * nums[left]; left -= 1; } else { result[index] = nums[right] * nums[right]; right += 1; } index += 1; } while (index \u0026lt; sz) { if (left \u0026gt;= 0) { result[index] = nums[left] * nums[left]; left -= 1; } else { result[index] = nums[right] * nums[right]; right += 1; } } } return result; } } "},{"id":31,"href":"/docs/codes/1200-to-1299/1290.-Convert-Binary-Number-in-A-Linked-List-to-Integer/","title":"1290. Convert Binary Number in a Linked List to Integer","section":"1200 to 1299","content":" 1290. Convert Binary Number in A Linked List to Integer # 题目 # 给定单链表头节点head，已知此链表是一个整数数字的二进制表示形式，链表中每个节点的值非0即1。返回链表所表示数字的十进制值。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode reverseList(ListNode head) { ListNode prev = null, cur = head, next = head.next; while(cur != null) { cur.next = prev; prev = cur; cur = next; if (next != null) next = next.next; } return prev; } public int getDecimalValue(ListNode head) { ListNode newHead = reverseList(head); int decimal = 0, digit = 0; ListNode ptr = newHead; while (ptr != null) { decimal += Math.pow(2, digit) * ptr.val; digit += 1; ptr = ptr.next; } reverseList(newHead); return decimal; } } "},{"id":32,"href":"/docs/codes/1600-to-1699/1669.-Merge-in-Between-Linked-Lists/","title":"1669. Merge in Between Linked Lists","section":"1600 to 1699","content":" 1669. Merge in Between Linked Lists # 题目 # 给定两个链表list1和list2，它们包含的元素分别为n个和m个。\n将list1中下标从a到b的全部节点都删除，并将list2接在被删除节点的位置。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode mergeInBetween(ListNode list1, int a, int b, ListNode list2) { ListNode ptrA = list1, ptrB = list1; for (int i=0; i\u0026lt;a-1; i++) ptrA = ptrA.next; for (int i=0; i\u0026lt;b; i++) ptrB = ptrB.next; ListNode rear = list2; while (rear.next != null) rear = rear.next; ptrA.next = list2; rear.next = ptrB.next; return list1; } } "},{"id":33,"href":"/docs/codes/1700-to-1799/1721.-Swapping-Nodes-in-A-Linked-List/","title":"1721. Swapping Nodes in a Linked List","section":"1700 to 1799","content":" 1721. Swapping Nodes in A Linked List # 题目 # 给定链表头节点head和一个整数k\n交换链表正数第k个节点和倒数第k个节点的值后，返回链表的头节点（链表从1开始索引）\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution{ public ListNode locateForward(ListNode head, int k) { ListNode sentinel = new ListNode(-1, head); ListNode ptr = sentinel; for (int i=0; i\u0026lt;k; i++) ptr = ptr.next; return ptr; } public ListNode locateBackward(ListNode head, int k) { ListNode sentinel = new ListNode(-1, head); ListNode slow = sentinel, fast = sentinel; for (int i=0; i\u0026lt;k; i++) fast = fast.next; while (fast != null) { slow = slow.next; fast = fast.next; } return slow; } public ListNode swapNodes(ListNode head, int k) { ListNode forwardK = locateForward(head, k); ListNode backwardK = locateBackward(head, k); int tmp = forwardK.val; forwardK.val = backwardK.val; backwardK.val = tmp; return head; } } "},{"id":34,"href":"/docs/codes/2000-to-2099/2095.-Delete-the-Middle-Node-of-A-Linked-List/","title":"2095. Delete the Middle Node of a Linked List","section":"2000 to 2099","content":" 2095. Delete the Middle Node of A Linked List # 题目 # 给定链表头节点head，删除链表的中间节点，并返回修改后的链表头节点head。\n长度为 n 链表的中间节点是从头数起第 ⌊n / 2⌋ 个节点（下标从 0 开始），其中 ⌊x⌋ 表示小于或等于 x 的最大整数。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode() {} ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } class Solution { public ListNode deleteMiddle(ListNode head) { if (head == null) return null; ListNode sentinel = new ListNode(-1, head); ListNode middle = sentinel, fast = sentinel; while (fast != null \u0026amp;\u0026amp; fast.next != null) { middle = middle.next; fast = fast.next.next; } if (fast != null) middle = middle.next; ListNode ptr = sentinel; while (ptr.next != middle) ptr = ptr.next; ptr.next = middle.next; return sentinel.next; } } "},{"id":35,"href":"/docs/codes/reference/buttons/","title":"Buttons","section":"Codes","content":" Buttons # Buttons are styled links that can lead to local page or external link.\nExample # {{\u0026lt; button relref=\u0026#34;/\u0026#34; [class=\u0026#34;...\u0026#34;] \u0026gt;}}Get Home{{\u0026lt; /button \u0026gt;}} {{\u0026lt; button href=\u0026#34;https://github.com/alex-shpak/hugo-book\u0026#34; \u0026gt;}}Contribute{{\u0026lt; /button \u0026gt;}} Get Home Contribute TODO\n将题目的URL替换为leetcode.com的相应链接 标记题目的difficulty 完善每道题目的analysis 融合Anki "},{"id":36,"href":"/docs/codes/reference/columns/","title":"Columns","section":"Codes","content":" Columns # Columns help organize shorter pieces of content horizontally for readability.\n{{\u0026lt; columns \u0026gt;}} \u0026lt;!-- begin columns block --\u0026gt; # Left Content Lorem markdownum insigne... \u0026lt;---\u0026gt; \u0026lt;!-- magic separator, between columns --\u0026gt; # Mid Content Lorem markdownum insigne... \u0026lt;---\u0026gt; \u0026lt;!-- magic separator, between columns --\u0026gt; # Right Content Lorem markdownum insigne... {{\u0026lt; /columns \u0026gt;}} Example # Left Content # Lorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa protulit, sed sed aere valvis inhaesuro Pallas animam: qui quid, ignes. Miseratus fonte Ditis conubia. Mid Content # Lorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Right Content # Lorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa protulit, sed sed aere valvis inhaesuro Pallas animam: qui quid, ignes. Miseratus fonte Ditis conubia. "},{"id":37,"href":"/docs/codes/reference/details/","title":"Details","section":"Codes","content":" Details # Details shortcode is a helper for details html5 element. It is going to replace expand shortcode.\nExample # {{\u0026lt; details \u0026#34;Title\u0026#34; [open] \u0026gt;}} ## Markdown content Lorem markdownum insigne... {{\u0026lt; /details \u0026gt;}} {{\u0026lt; details title=\u0026#34;Title\u0026#34; open=true \u0026gt;}} ## Markdown content Lorem markdownum insigne... {{\u0026lt; /details \u0026gt;}} Title Markdown content # Lorem markdownum insigne\u0026hellip; "},{"id":38,"href":"/docs/codes/reference/expand/","title":"Expand","section":"Codes","content":" Expand # Expand shortcode can help to decrease clutter on screen by hiding part of text. Expand content by clicking on it.\nExample # Default # {{\u0026lt; expand \u0026gt;}} ## Markdown content Lorem markdownum insigne... {{\u0026lt; /expand \u0026gt;}} Expand ↕ Markdown content # Lorem markdownum insigne\u0026hellip; With Custom Label # {{\u0026lt; expand \u0026#34;Custom Label\u0026#34; \u0026#34;...\u0026#34; \u0026gt;}} ## Markdown content Lorem markdownum insigne... {{\u0026lt; /expand \u0026gt;}} Custom Label ... Markdown content # Lorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa protulit, sed sed aere valvis inhaesuro Pallas animam: qui quid, ignes. Miseratus fonte Ditis conubia. "},{"id":39,"href":"/docs/codes/reference/hints/","title":"Hints","section":"Codes","content":" Hints # Hint shortcode can be used as hint/alerts/notification block.\nThere are 3 colors to choose: info, warning and danger.\n{{\u0026lt; hint [info|warning|danger] \u0026gt;}} **Markdown content** Lorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa {{\u0026lt; /hint \u0026gt;}} Example # Markdown content\nLorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa Markdown content\nLorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa Markdown content\nLorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa "},{"id":40,"href":"/docs/codes/reference/katex/","title":"Katex","section":"Codes","content":" KaTeX # KaTeX shortcode let you render math typesetting in markdown document. See KaTeX\nExample # {{\u0026lt; katex [display] [class=\u0026#34;text-center\u0026#34;] \u0026gt;}} f(x) = \\int_{-\\infty}^\\infty\\hat f(\\xi)\\,e^{2 \\pi i \\xi x}\\,d\\xi {{\u0026lt; /katex \u0026gt;}} \\[f(x) = \\int_{-\\infty}^\\infty\\hat f(\\xi)\\,e^{2 \\pi i \\xi x}\\,d\\xi\\] Display Mode Example # Here is some inline example: \\(\\pi(x)\\) , rendered in the same line. And below is display example, having display: block \\[f(x) = \\int_{-\\infty}^\\infty\\hat f(\\xi)\\,e^{2 \\pi i \\xi x}\\,d\\xi\\] Text continues here.\n"},{"id":41,"href":"/docs/codes/reference/mermaid/","title":"Mermaid","section":"Codes","content":" Mermaid Chart # MermaidJS is library for generating svg charts and diagrams from text.\nOverride Mermaid Initialization Config\nTo override the initialization config for Mermaid, create a mermaid.json file in your assets folder!\nExample # {{\u0026lt; mermaid [class=\u0026#34;text-center\u0026#34;]\u0026gt;}} stateDiagram-v2 State1: The state with a note note right of State1 Important information! You can write notes. end note State1 --\u0026gt; State2 note left of State2 : This is the note to the left. {{\u0026lt; /mermaid \u0026gt;}} stateDiagram-v2 State1: The state with a note note right of State1 Important information! You can write notes. end note State1 --\u003e State2 note left of State2 : This is the note to the left. "},{"id":42,"href":"/docs/codes/reference/tabs/","title":"Tabs","section":"Codes","content":" Tabs # Tabs let you organize content by context, for example installation instructions for each supported platform.\n{{\u0026lt; tabs \u0026#34;uniqueid\u0026#34; \u0026gt;}} {{\u0026lt; tab \u0026#34;MacOS\u0026#34; \u0026gt;}} # MacOS Content {{\u0026lt; /tab \u0026gt;}} {{\u0026lt; tab \u0026#34;Linux\u0026#34; \u0026gt;}} # Linux Content {{\u0026lt; /tab \u0026gt;}} {{\u0026lt; tab \u0026#34;Windows\u0026#34; \u0026gt;}} # Windows Content {{\u0026lt; /tab \u0026gt;}} {{\u0026lt; /tabs \u0026gt;}} Example # MacOS MacOS # This is tab MacOS content.\nLorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa protulit, sed sed aere valvis inhaesuro Pallas animam: qui quid, ignes. Miseratus fonte Ditis conubia.\nLinux Linux # This is tab Linux content.\nLorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa protulit, sed sed aere valvis inhaesuro Pallas animam: qui quid, ignes. Miseratus fonte Ditis conubia.\nWindows Windows # This is tab Windows content.\nLorem markdownum insigne. Olympo signis Delphis! Retexi Nereius nova develat stringit, frustra Saturnius uteroque inter! Oculis non ritibus Telethusa protulit, sed sed aere valvis inhaesuro Pallas animam: qui quid, ignes. Miseratus fonte Ditis conubia.\n"},{"id":43,"href":"/docs/codes/%E5%89%91%E6%8C%87-Offer/%E5%89%91%E6%8C%87-Offer-18.-%E5%88%A0%E9%99%A4%E9%93%BE%E8%A1%A8%E7%9A%84%E8%8A%82%E7%82%B9/","title":"剑指 Offer 18. 删除链表的节点","section":"剑指 Offer","content":" 剑指 Offer 18. 删除链表的节点 # 题目 # 给定单链表的头指针和一个要删除的节点的值，定义一个函数删除该节点，返回删除后的链表的头节点。链表中节点的值互不相同。\n思路 # 代码 # public class ListNode { int val; ListNode next; ListNode(int x) { val = x; } } class Solution { public ListNode deleteNode(ListNode head, int val) { if (head.val == val) return head.next; ListNode ptr = head; while (ptr.next.val != val) ptr = ptr.next; ptr.next = ptr.next.next; return head;s } } "},{"id":44,"href":"/docs/topic/hidden/","title":"Hidden","section":"Topic","content":" This page is hidden in menu # Quondam non pater est dignior ille Eurotas # Latent te facies # Lorem markdownum arma ignoscas vocavit quoque ille texit mandata mentis ultimus, frementes, qui in vel. Hippotades Peleus pennas conscia cuiquam Caeneus quas.\nPater demittere evincitque reddunt Maxime adhuc pressit huc Danaas quid freta Soror ego Luctus linguam saxa ultroque prior Tatiumque inquit Saepe liquitur subita superata dederat Anius sudor Cum honorum Latona # O fallor in sustinui iussorum equidem. Nymphae operi oris alii fronde parens dumque, in auro ait mox ingenti proxima iamdudum maius?\nreality(burnDocking(apache_nanometer), pad.property_data_programming.sectorBrowserPpga(dataMask, 37, recycleRup)); intellectualVaporwareUser += -5 * 4; traceroute_key_upnp /= lag_optical(android.smb(thyristorTftp)); surge_host_golden = mca_compact_device(dual_dpi_opengl, 33, commerce_add_ppc); if (lun_ipv) { verticalExtranet(1, thumbnail_ttl, 3); bar_graphics_jpeg(chipset - sector_xmp_beta); } Fronde cetera dextrae sequens pennis voce muneris # Acta cretus diem restet utque; move integer, oscula non inspirat, noctisque scelus! Nantemque in suas vobis quamvis, et labori!\nvar runtimeDiskCompiler = home - array_ad_software; if (internic \u0026gt; disk) { emoticonLockCron += 37 + bps - 4; wan_ansi_honeypot.cardGigaflops = artificialStorageCgi; simplex -= downloadAccess; } var volumeHardeningAndroid = pixel + tftp + onProcessorUnmount; sector(memory(firewire + interlaced, wired)); "}]