From 78748476fdaf003583331dff7e362a62c160f6b5 Mon Sep 17 00:00:00 2001
From: GitHub Actions <actions@github.com>
Date: Thu, 13 Jun 2024 13:04:07 +0000
Subject: [PATCH] site deploy

Auto-generated via {sandpaper}
Source  : b0b6f166e3c9a2502dd272bf4f89488cbf46fc48
Branch  : md-outputs
Author  : GitHub Actions <actions@github.com>
Time    : 2024-06-13 13:03:50 +0000
Message : markdown source builds

Auto-generated via {sandpaper}
Source  : 5d9573e6bbd3aaac6877d726e74a6435b65143eb
Branch  : main
Author  : Owen Stephens <owen@ostephens.com>
Time    : 2024-06-13 13:02:49 +0000
Message : Merge pull request #348 from r0man-ist/r0man-ist-patch-1

added sort function and clarified text
---
 01-introduction.html                          |  2 +-
 02-importing-data.html                        |  2 +-
 03-working-with-data.html                     |  6 ++---
 04-faceting-and-filtering.html                |  2 +-
 05-clustering.html                            |  2 +-
 06-working-with-columns.html                  |  2 +-
 07-introduction-to-transformations.html       |  2 +-
 08-writing-transformations.html               |  2 +-
 09-undo-and-redo.html                         |  2 +-
 10-data-transformation.html                   |  2 +-
 11-using-arrays-transformations.html          | 16 ++++++-------
 12-export-transformation.html                 |  2 +-
 13-looking-up-data.html                       |  2 +-
 404.html                                      |  4 ++--
 CODE_OF_CONDUCT.html                          |  2 +-
 LICENSE.html                                  |  2 +-
 aio.html                                      | 20 ++++++++--------
 discuss.html                                  |  2 +-
 images.html                                   |  4 ++--
 index.html                                    |  4 ++--
 instructor-notes.html                         |  4 ++--
 instructor/01-introduction.html               |  2 +-
 instructor/02-importing-data.html             |  6 ++---
 instructor/03-working-with-data.html          |  6 ++---
 instructor/04-faceting-and-filtering.html     |  2 +-
 instructor/05-clustering.html                 |  2 +-
 instructor/06-working-with-columns.html       |  2 +-
 .../07-introduction-to-transformations.html   |  2 +-
 instructor/08-writing-transformations.html    |  2 +-
 instructor/09-undo-and-redo.html              |  2 +-
 instructor/10-data-transformation.html        |  2 +-
 .../11-using-arrays-transformations.html      | 16 ++++++-------
 instructor/12-export-transformation.html      |  2 +-
 instructor/13-looking-up-data.html            |  2 +-
 instructor/404.html                           |  4 ++--
 instructor/CODE_OF_CONDUCT.html               |  2 +-
 instructor/LICENSE.html                       |  2 +-
 instructor/aio.html                           | 24 +++++++++----------
 instructor/discuss.html                       |  2 +-
 instructor/images.html                        |  4 ++--
 instructor/index.html                         |  4 ++--
 instructor/instructor-notes.html              |  4 ++--
 instructor/key-points.html                    |  4 ++--
 instructor/profiles.html                      |  4 ++--
 instructor/reference.html                     |  2 +-
 key-points.html                               |  4 ++--
 md5sum.txt                                    |  2 +-
 pkgdown.yml                                   |  2 +-
 profiles.html                                 |  4 ++--
 reference.html                                |  2 +-
 50 files changed, 102 insertions(+), 102 deletions(-)

diff --git a/01-introduction.html b/01-introduction.html
index 4c6f3db6..bb2d09a6 100644
--- a/01-introduction.html
+++ b/01-introduction.html
@@ -573,7 +573,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/01-introduction.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/02-importing-data.html b/02-importing-data.html
index 863158f3..1a113c81 100644
--- a/02-importing-data.html
+++ b/02-importing-data.html
@@ -543,7 +543,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/02-importing-data.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-11-16",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/03-working-with-data.html b/03-working-with-data.html
index f022e100..96ceb182 100644
--- a/03-working-with-data.html
+++ b/03-working-with-data.html
@@ -528,7 +528,7 @@ <h3 class="callout-title">Splitting Subjects into separate cells<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>The subject words/headings are divided up with the pipe ( | )
 character</li>
@@ -557,7 +557,7 @@ <h3 class="callout-title">Joining the Subjects column back together<a class="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>The subject words/headings were previously delimited with the pipe (
 | ) character</li>
@@ -652,7 +652,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/03-working-with-data.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-09",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/04-faceting-and-filtering.html b/04-faceting-and-filtering.html
index bb59cb35..6fbfe5fc 100644
--- a/04-faceting-and-filtering.html
+++ b/04-faceting-and-filtering.html
@@ -665,7 +665,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/04-faceting-and-filtering.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-11-28",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/05-clustering.html b/05-clustering.html
index 12d5c19d..d054ff81 100644
--- a/05-clustering.html
+++ b/05-clustering.html
@@ -486,7 +486,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/05-clustering.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-10-25",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/06-working-with-columns.html b/06-working-with-columns.html
index 105f4547..78c4ec6a 100644
--- a/06-working-with-columns.html
+++ b/06-working-with-columns.html
@@ -470,7 +470,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/06-working-with-columns.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-01-11",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/07-introduction-to-transformations.html b/07-introduction-to-transformations.html
index ac0f08a6..a8609b14 100644
--- a/07-introduction-to-transformations.html
+++ b/07-introduction-to-transformations.html
@@ -504,7 +504,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/07-introduction-to-transformations.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/08-writing-transformations.html b/08-writing-transformations.html
index ebb25e49..b783b4e9 100644
--- a/08-writing-transformations.html
+++ b/08-writing-transformations.html
@@ -492,7 +492,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/08-writing-transformations.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/09-undo-and-redo.html b/09-undo-and-redo.html
index 3bc8ee5a..94baf664 100644
--- a/09-undo-and-redo.html
+++ b/09-undo-and-redo.html
@@ -470,7 +470,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/09-undo-and-redo.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/10-data-transformation.html b/10-data-transformation.html
index aed06f98..86263f78 100644
--- a/10-data-transformation.html
+++ b/10-data-transformation.html
@@ -608,7 +608,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/10-data-transformation.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-26",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/11-using-arrays-transformations.html b/11-using-arrays-transformations.html
index 5892c41c..854c29fa 100644
--- a/11-using-arrays-transformations.html
+++ b/11-using-arrays-transformations.html
@@ -329,7 +329,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Transformations - Handling Arrays</h1>
-        <p>Last updated on 2024-06-12 |
+        <p>Last updated on 2024-06-13 |
         
         <a href="https://github.com/librarycarpentry/lc-open-refine/edit/main/episodes/11-using-arrays-transformations.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -450,12 +450,12 @@ <h3 class="card-title">Objectives</h3>
 bracket notation and number for position in sequence:</p>
 <pre><code><span><span class="fu">value.split</span><span class="op">(</span><span class="st">"|"</span><span class="op">)</span><span class="op">[</span><span class="fl">0</span><span class="op">]</span></span></code></pre>
 <p>would result in the string: “crystal structure”</p>
-<p>You can also join arrays together to make a ‘String’. The GREL
-expression would look like</p>
-<pre><code>value.split("|").uniques().join("|")</code></pre>
+<p>You can also sort and join arrays together to make a ‘String’. The
+GREL expression would look like</p>
+<pre><code>value.split("|").uniques().sort().join("|")</code></pre>
 <p>Taking the same example again, this would result in a string with the
-subjects in alphabetical order, listed with pipes between each
-subject.</p>
+subjects in alphabetical order (note that the sort function is
+case-sensitive), listed with pipes between each subject.</p>
 
 <div id="reverse-author-names" class="callout checklist">
 <div class="callout-square">
@@ -590,8 +590,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://librarycarpentry.github.io/lc-open-refine/11-using-arrays-transformations.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/11-using-arrays-transformations.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/12-export-transformation.html b/12-export-transformation.html
index 8e5840e4..c61240c5 100644
--- a/12-export-transformation.html
+++ b/12-export-transformation.html
@@ -461,7 +461,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/12-export-transformation.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/13-looking-up-data.html b/13-looking-up-data.html
index c6dd5d0f..9953df48 100644
--- a/13-looking-up-data.html
+++ b/13-looking-up-data.html
@@ -730,7 +730,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/13-looking-up-data.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-05-08",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 8c9f9ac5..f244a106 100644
--- a/404.html
+++ b/404.html
@@ -391,8 +391,8 @@ <h1>Page not found</h1>
   "url": "https://librarycarpentry.github.io/lc-open-refine/404.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 7420df2e..bf1509d3 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -397,7 +397,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index c8ea38ea..7adbae66 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -448,7 +448,7 @@ <h1>Licenses</h1>
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/LICENSE.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index 88365cc9..73a5ccf4 100644
--- a/aio.html
+++ b/aio.html
@@ -1058,7 +1058,7 @@ <h3 class="callout-title">Splitting Subjects into separate cells<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The subject words/headings are divided up with the pipe ( | )
@@ -1093,7 +1093,7 @@ <h3 class="callout-title">Joining the Subjects column back together<a class="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The subject words/headings were previously delimited with the pipe (
@@ -2248,7 +2248,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </div>
 </section></section><section id="aio-11-using-arrays-transformations"><p>Content from <a href="11-using-arrays-transformations.html">Transformations - Handling Arrays</a></p>
 <hr>
-<p>Last updated on 2024-06-12 |
+<p>Last updated on 2024-06-13 |
         
         <a href="https://github.com/librarycarpentry/lc-open-refine/edit/main/episodes/11-using-arrays-transformations.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -2373,12 +2373,12 @@ <h3 class="card-title">Objectives</h3>
 bracket notation and number for position in sequence:</p>
 <pre><code><span><span class="fu">value.split</span><span class="op">(</span><span class="st">"|"</span><span class="op">)</span><span class="op">[</span><span class="fl">0</span><span class="op">]</span></span></code></pre>
 <p>would result in the string: “crystal structure”</p>
-<p>You can also join arrays together to make a ‘String’. The GREL
-expression would look like</p>
-<pre><code>value.split("|").uniques().join("|")</code></pre>
+<p>You can also sort and join arrays together to make a ‘String’. The
+GREL expression would look like</p>
+<pre><code>value.split("|").uniques().sort().join("|")</code></pre>
 <p>Taking the same example again, this would result in a string with the
-subjects in alphabetical order, listed with pipes between each
-subject.</p>
+subjects in alphabetical order (note that the sort function is
+case-sensitive), listed with pipes between each subject.</p>
 
 <div id="reverse-author-names" class="callout checklist">
 <div class="callout-square">
@@ -2963,8 +2963,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://librarycarpentry.github.io/lc-open-refine/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index 2d76cd46..7a8422ed 100644
--- a/discuss.html
+++ b/discuss.html
@@ -397,7 +397,7 @@ <h1>Discussion</h1>
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/discuss.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-10-20",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 09b4198b..43e5a183 100644
--- a/images.html
+++ b/images.html
@@ -466,8 +466,8 @@ <h3 id="13-looking-up-data-figure-1">Figure 1</h3>
   "url": "https://librarycarpentry.github.io/lc-open-refine/images.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index f74bd691..45a9afeb 100644
--- a/index.html
+++ b/index.html
@@ -504,8 +504,8 @@ <h3 id="getting-help">Getting help<a class="anchor" aria-label="anchor" href="#g
   "url": "https://librarycarpentry.github.io/lc-open-refine/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index b0a4aa61..1464ecd9 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -514,8 +514,8 @@ <h2 id="powerful-transformations">Powerful transformations<a class="anchor" aria
   "url": "https://librarycarpentry.github.io/lc-open-refine/instructor-notes.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/instructor/01-introduction.html b/instructor/01-introduction.html
index 52948975..727503de 100644
--- a/instructor/01-introduction.html
+++ b/instructor/01-introduction.html
@@ -575,7 +575,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/instructor/01-introduction.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/instructor/02-importing-data.html b/instructor/02-importing-data.html
index 7c9d3ae3..09ea1985 100644
--- a/instructor/02-importing-data.html
+++ b/instructor/02-importing-data.html
@@ -452,7 +452,7 @@ <h3 class="callout-title">Create your first OpenRefine project (using
   <h3 class="accordion-header" id="headingInstructor1">
 <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div>Instructor Note</h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
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-        <p>Last updated on 2024-06-12 |
+        <p>Last updated on 2024-06-13 |
         
         <a href="https://github.com/librarycarpentry/lc-open-refine/edit/main/episodes/11-using-arrays-transformations.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -468,12 +468,12 @@ <h3 class="accordion-header" id="headingInstructor1">
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 <p>would result in the string: “crystal structure”</p>
-<p>You can also join arrays together to make a ‘String’. The GREL
-expression would look like</p>
-<pre><code>value.split("|").uniques().join("|")</code></pre>
+<p>You can also sort and join arrays together to make a ‘String’. The
+GREL expression would look like</p>
+<pre><code>value.split("|").uniques().sort().join("|")</code></pre>
 <p>Taking the same example again, this would result in a string with the
-subjects in alphabetical order, listed with pipes between each
-subject.</p>
+subjects in alphabetical order (note that the sort function is
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 <ol style="list-style-type: decimal">
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-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
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 <hr>
-<p>Last updated on 2024-06-12 |
+<p>Last updated on 2024-06-13 |
         
         <a href="https://github.com/librarycarpentry/lc-open-refine/edit/main/episodes/11-using-arrays-transformations.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 20 minutes</p>
@@ -2449,12 +2449,12 @@ <h3 class="accordion-header" id="headingInstructor1">
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 <p>would result in the string: “crystal structure”</p>
-<p>You can also join arrays together to make a ‘String’. The GREL
-expression would look like</p>
-<pre><code>value.split("|").uniques().join("|")</code></pre>
+<p>You can also sort and join arrays together to make a ‘String’. The
+GREL expression would look like</p>
+<pre><code>value.split("|").uniques().sort().join("|")</code></pre>
 <p>Taking the same example again, this would result in a string with the
-subjects in alphabetical order, listed with pipes between each
-subject.</p>
+subjects in alphabetical order (note that the sort function is
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 <div id="accordionInstructor2" class="accordion instructor-note accordion-flush">
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diff --git a/instructor/key-points.html b/instructor/key-points.html
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-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index d788e0af..70418866 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -392,7 +392,7 @@ <h1>Reference</h1>
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/instructor/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index a8bddf8a..dce44353 100644
--- a/key-points.html
+++ b/key-points.html
@@ -528,8 +528,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-open-refine/key-points.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/key-points.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/md5sum.txt b/md5sum.txt
index c8d0a9c9..72491bb7 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -13,7 +13,7 @@
 "episodes/08-writing-transformations.md" "b69d3a52f8de4655d7c8695d95d5821d" "site/built/08-writing-transformations.md" "2023-05-01"
 "episodes/09-undo-and-redo.md" "9dba6d90cc6d8d9d5381cb537006b63e" "site/built/09-undo-and-redo.md" "2023-05-01"
 "episodes/10-data-transformation.md" "47399b9f87a7c2dfae1d6b67eea71cc7" "site/built/10-data-transformation.md" "2023-05-26"
-"episodes/11-using-arrays-transformations.md" "1f63618b802da3df5ed0d0900d2471a0" "site/built/11-using-arrays-transformations.md" "2024-06-12"
+"episodes/11-using-arrays-transformations.md" "9f0a468847fad1070c69665ef840b843" "site/built/11-using-arrays-transformations.md" "2024-06-13"
 "episodes/12-export-transformation.md" "aa6dd576a893a0870baa24611573e50b" "site/built/12-export-transformation.md" "2023-05-01"
 "episodes/13-looking-up-data.md" "78395aeacd84ded698a0645d74ac2d48" "site/built/13-looking-up-data.md" "2024-05-08"
 "instructors/instructor-notes.md" "c2dfd88f1e85cccb9cbe872530c534ac" "site/built/instructor-notes.md" "2023-11-21"
diff --git a/pkgdown.yml b/pkgdown.yml
index 7c7a3835..1b781573 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 3.1.11
 pkgdown: 2.0.9
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-06-12T14:58Z
+last_built: 2024-06-13T13:03Z
 
diff --git a/profiles.html b/profiles.html
index a32109a7..29c6183e 100644
--- a/profiles.html
+++ b/profiles.html
@@ -348,8 +348,8 @@ <h1>Learner Profiles</h1>
   "url": "https://librarycarpentry.github.io/lc-open-refine/profiles.html",
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-06-12",
-  "datePublished": "2024-06-12"
+  "dateModified": "2024-06-13",
+  "datePublished": "2024-06-13"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 921b8c33..89c2cc64 100644
--- a/reference.html
+++ b/reference.html
@@ -390,7 +390,7 @@ <h1>Reference</h1>
   "identifier": "https://librarycarpentry.github.io/lc-open-refine/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-01",
-  "datePublished": "2024-06-12"
+  "datePublished": "2024-06-13"
 }
 
   </script><script>