Posted by Jessica Taylor | Updated on | Dart
If you want to reference another file in Dart? You will be importing the filename.dart and not the name of your library. So if the name of your library is: myLib and it is saved …
Posted by Pinki | Updated on | Dart
Want to call a super constructor in Dart? Yes, it is, the syntax is close to C#, here is an example with both default constructor and named constructor: If you want to initialize instance variables …
Posted by Andre Scott | Updated on | Dart
Want to convert a double to an int in Dart? Round it using the round() method:
Posted by Pinki | Updated on | Dart
Console.log in Dart Language. A basic top-level print function is always available in all implementations of Dart (browser, VM, etc.). Because Dart has string interpolation, it’s easy to use that to print useful stuff too:
Posted by Jennifer | Updated on | Dart
Do you need to use the “new” keyword in Dart? The const keyword can, however, change a value that would not be a const implicitly to a const. So you will have to explicitly specify …
Posted by Jessica Taylor | Updated on | Dart
Want to perform runtime type checking in Dart? The instanceof-operator is called is in Dart. The spec isn’t exactly friendly to a casual reader, so the best description right now seems to be http://www.dartlang.org/articles/optional-types/. Here’s …
Posted by Pinki | Updated on | Dart
Want to parse a string into a number with Dart? You can parse a string into an integer with int.parse(). For example: You can parse a string into a double with double.parse(). For example:
Posted by Jennifer | Updated on | Dart
Passing Data to a Stateful Widget. Don’t pass parameters to State using it’s constructor. You should only access these using this.widget.myField. Not only editing the constructor requires a lot of manual work ; it doesn’t …
Posted by Andre Scott | Updated on | Dart
What is the difference between functions and classes to create reusable widgets? It’s just ideal that those functions return a StatelessWidget, so optimisations can be made, such as making the StatelessWidget const, so it doesn’t …
Posted by Pinki | Updated on | Dart
Flutter SDK Set Background image. I’m not sure I understand your question, but if you want the image to fill the entire screen you can use a DecorationImage with a fit of BoxFit.cover. For your …
Posted by Editorial Staff | Updated on | Dart
Want to dismiss the on screen keyboard? You can dismiss the keyboard by taking away the focus of the TextFormField and giving it to an unused FocusNode:
Posted by Rohit Kumar | Updated on | Dart
How does the const constructor actually work? Very well explained in detail but for the users who are actually looking for the usage of a const constructor.
Posted by Jessica Taylor | Updated on | Dart
Want to detect the host platform from Dart code? Use the below example code to detect the host platform from Dart code.
Posted by Pinki | Updated on | Dart
Will Dart support the use of existing JavaScript libraries? The answer is now Yes! Dart now ships a JS-interop library to use existing JavaScript code with your Dart app. Learn more here: https://www.dartlang.org/articles/js-dart-interop/
Posted by Andre Scott | Updated on | Dart
Want to generate random numbers in Dart? Use Random class from dart:math: This code was tested with the Dart VM and dart2js, as of the time of this writing.
