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24.10
author Coffee CMS <info@coffee-cms.ru>
date Fri, 11 Oct 2024 22:40:23 +0000
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-1:000000000000 0:78edf6b517a0
1 <!doctype html>
2
3 <title>CodeMirror: Dart mode</title>
4 <meta charset="utf-8"/>
5 <link rel=stylesheet href="../../doc/docs.css">
6 <link rel="stylesheet" href="../../lib/codemirror.css">
7 <script src="../../lib/codemirror.js"></script>
8 <script src="../clike/clike.js"></script>
9 <script src="dart.js"></script>
10 <style>.CodeMirror {border: 1px solid #dee;}</style>
11 <div id=nav>
12 <a href="https://codemirror.net/5"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png" alt=""></a>
13
14 <ul>
15 <li><a href="../../index.html">Home</a>
16 <li><a href="../../doc/manual.html">Manual</a>
17 <li><a href="https://github.com/codemirror/codemirror5">Code</a>
18 </ul>
19 <ul>
20 <li><a href="../index.html">Language modes</a>
21 <li><a class=active href="#">Dart</a>
22 </ul>
23 </div>
24
25 <article>
26 <h2>Dart mode</h2>
27 <form>
28 <textarea id="code" name="code">
29 import 'dart:math' show Random;
30
31 void main() {
32 print(Die(n: 12).roll());
33 }
34
35 // Define a class.
36 class Die {
37 // Define a class variable.
38 static final Random shaker = Random();
39
40 // Define instance variables.
41 final int sides;
42 int? lastRoll;
43
44 // Define a constructor.
45 Die({int n = 6}) : sides = n {
46 if (4 > n || n > 20) {
47 // Support for errors and exceptions.
48 throw ArgumentError(/* */);
49 }
50 }
51
52 // Define a method using shorthand syntax.
53 @override
54 String toString() => '$lastRoll';
55
56 // Define an instance method.
57 int roll() {
58 return lastRoll = shaker.nextInt(sides) + 1;
59 }
60 }
61 </textarea>
62 </form>
63
64 <script>
65 var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
66 lineNumbers: true,
67 mode: "application/dart"
68 });
69 </script>
70
71 </article>