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
http://dartlang.org
http://dartosphere.org
https://github.com/vitkoma/Dart-Examples
Q&A
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