Dart
Vít Koma
Dart Language
- Scripting language for web development
- JavaScript replacement
- Object oriented
- Optionally typed
- Syntax similar to Java or C#
- Targets both client and server applications
Dart Features
- Optional types
- Modularity
-
Functional programming support
- Class-based OOP support
- Implicit interfaces
- Generics
- Mixins
- Futures
Isolates
- Isolated unit of running code
- Isolates does not share memory
- Communicate by messages
- Implementations may vary
- WebWorkers in a browser
- Threads on server
Tools
-
SDK
- virtual machine
- compiler to JS
- package manager (pub)
- Dart Editor
- Dartium
PUB
- Package manager and build tool
- Similar to Maven or Gradle
- Metadata stored in pubspec.yaml file
- name
- description
- author
- dependencies
- etc
Running in Browser
<script type="application/dart" src="my_app.dart"/>
<script type="packages/browser/dart.js"/>- Dartium browser
- executes my_app.dart (after DOM is loaded)
- dart.js detects Dart VM and does nothing
- Other browsers
- ignore my_app.dart
- dart.js rewrites previous script element to
<script src="my_app.dart.js"/>
DOM AND AJAX
- DOM traversal and manipulation similar to jQuery
- Simple AJAX calls with futures
RESOURCES
Q&A
Dart
By Vit Koma
