<!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="https://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> </ul> <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>