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<!doctype html>
<title>CodeMirror: Dart mode</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="../../doc/docs.css">
<link rel="stylesheet" href="../../lib/codemirror.css">
<script src="../../lib/codemirror.js"></script>
<script src="../clike/clike.js"></script>
<script src="dart.js"></script>
<style>.CodeMirror {border: 1px solid #dee;}</style>
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
<ul>
<li><a href="../../index.html">Home</a>
<li><a href="../../doc/manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
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<ul>
<li><a href="../index.html">Language modes</a>
<li><a class=active href="#">Dart</a>
</ul>
</div>
<article>
<h2>Dart mode</h2>
<form>
<textarea id="code" name="code">
import 'dart:math' show Random;
void main() {
print(new Die(n: 12).roll());
}
// Define a class.
class Die {
// Define a class variable.
static Random shaker = new Random();
// Define instance variables.
int sides, value;
// Define a method using shorthand syntax.
String toString() => '$value';
// Define a constructor.
Die({int n: 6}) {
if (4 <= n && n <= 20) {
sides = n;
} else {
// Support for errors and exceptions.
throw new ArgumentError(/* */);
}
}
// Define an instance method.
int roll() {
return value = shaker.nextInt(sides) + 1;
}
}
</textarea>
</form>
<script>
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
lineNumbers: true,
mode: "application/dart"
});
</script>
</article>
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