- Custom Scroll Views in Flutter
- Parallax App Bar in Flutter
- JSON HTTP Requests in Dart
- URL Timeouts in Dart
- Detecting URL File Types in Dart
- Paginated Lists in Dart
- Requesting DELETE on APIs in Dart
- Animated Containers in Flutter
- Hiding Widgets in Flutter
- Simple Opacity Animation in Flutter
- Vignette Widget in Flutter
- Drop Down Button Configuration and Usage in Flutter
- Expandable List Items in Flutter
- Infinite Scrolling in Flutter
- Infinite Arrays in Dart
- Custom Color Picker Component in Flutter
- Displaying and Reacting to Switches in Flutter
- Displaying Bottom Bars in Flutter
- Displaying Buttons on AppBar in Flutter
- Displaying Bottom Sheets in Flutter
- Converting Enums to Radio Buttons in Flutter
- Check Existence of Websites in Flutter
- Images inside AlertDialog in Flutter
- Returning Values from AlertDialog in Flutter
- Simple Grid View in Flutter
- Rendering Bullet Points in Flutter
- Retrying Futures in Flutter
- Containers as ClipOvals in Flutter
- Rich Texts in Flutter
- Wrapping Widgets in Flutter
- Sweep Gradients in Flutter
Stream
andStreamBuilder
in Flutter- Blur Effect in Flutter
- Convert Enums to Strings in Dart
- Replacing Text in TextField in Flutter
- Aspect Ratio in Flutter
- Zoom and Pan in Flutter
- Resizing Images in Flutter to Fit Screen Height
- Validating URLs in Flutter
- FrameBuilder for Network Images in Flutter
- Adding Shadow to Icons in Flutter
- Calculating Median of Lists in Dart
- Generic Functions with Reduce in Dart
- Passing Back Data From a Screen to the Previous One in Flutter
- Flinging an Animation in Flutter
- Fade Animations in Flutter
- Throttling User Input in Flutter
- Censoring TextFields in Flutter
- Customizing TextButton in Flutter
- Multiline TextFields in Flutter
- Filtering TextField Input in Flutter
- Focusing Manually on TextFields in Flutter
- Data Streams Over HTTP/HTTPs in Dart
- Catching Nonexistent Accessors or Methods in Dart
- Using Expando in Dart
- Implementing Custom Maps in Dart
- Dynamically Calling Functions in Dart
- Factory Constructors in Dart
- Calculating the Sum of List Items in Dart
- Removing Duplicate Strings in Lists in Dart (Case-Insensitive)
- Implementing Range in Dart
- Converting Lists to Maps in Dart
- Implementing Hashable in Dart
- Random Name Generator in Dart
- Capturing Stack Traces in Dart Exceptions
- Removing Duplicates from Lists in Dart
- Optional Spread Operator in Dart
- Calling Optional Functions in Dart
- Odd-Even Sort in Dart
- Implementing Zip and Tuples in Dart
- Swapping Values in Lists with XOR in Dart
- Waiting for Multiple Futures in Dart
- Using Queues as Stacks in Dart
- Custom Iterators in Dart
- Iterables as Ranges + Transform in Dart
- Errors vs Exceptions in Dart
- Custom Annotations in Dart
- Classes as Enums in Dart
- Spread Operator in Collection Literals in Dart
StreamBuilder
andStreamController
in Dart- Almost Equal in Dart
- Enum Associated Values in Dart
- Implementing
Comparable
in Dart - Implementing Custom Integer Types in Dart
- Custom Subscripts in Dart
- Dart List Enumeration with Index
- Applying Mixins to Other Mixins in Dart
- Parameter Types in Dart
- Custom Exceptions in Dart
rethrow
ing Exceptions in Dartmixin
s and JSON Parsing in Dartmixin
s vsabstract class
es in Dart- Drawing Shapes in Flutter with
LayoutBuilder
,CustomPaint
andCustomPainter
- Generic Type Aliases in Dart
- Callable Classes in Dart
- Synchronous Generators in Dart
- Implicit Interfaces in Dart
const
Constructors in Dartasync
-await
Over RawFuture
s in Dart- Initializer List and Default Values as Convenience Intializers in Dart
- Extract Elements of Certain Type from Lists in Dart
- Type Promotion in Dart
- Extract Minimum and Maximum Values in
List<num>
in Dart - Functions as First Class Citizens in Dart
Did you know that in #Dart, every #class implicitly exports an #interface that can be #implemented (as opposed to #extended) by other classes? This is called "implicit interface".
Did you know that in #Dart, it is actually preferred to use #async and #await over using raw #Futures?
In #Dart, you can use a combination of #Initializer #List plus default values for your class #member #fields to create elegant and handy convenience initializers
Did you know that in #Dart, you can extract elements of a certain type from your Lists using the #whereType #generic #function instead of calculating the #equality yourselves?
"address" is an optional field of the "Person" class. If you look at the "doThis()" function you see that I'm saving the value of address in a local variable and then comparing it with null and then returning if it's null. The Dart compiler is intelligent enough to understand that after the if-statement, "address" is NOT null anymore since you've already compared it with null and returned from the function.
If you look at the "insteadOfThis" function, the first one, the Dart compiler cannot make the same assumption if you don't first store the value of address in a local variable. In that first function the Dart compiler, even after the if-statement, needs you to refer to address as an optional, using "address?" syntax.
The mechanism the Dart compiler uses in the "doThis()" function is called Type Promotion.