只读
width
特性为
TextMetrics
interface contains the text's advance width (the width of that inline box) in CSS pixels.
Given this
<canvas>
元素：
<canvas id="canvas"></canvas>
... you can get a
TextMetrics
object using the following code:
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
let text = ctx.measureText('foo'); // TextMetrics object
text.width; // 16;
| 规范 |
|---|
|
HTML 实时标准
The definition of 'TextMetrics.width' in that specification. |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
width
|
Chrome 4 | Edge 12 | Firefox 1.5 | IE 9 | Opera 9 | Safari 3.1 | WebView Android Yes | Chrome Android Yes | Firefox Android 31 | Opera Android Yes | Safari iOS 3.2 | Samsung Internet Android Yes |
完整支持
实验。期望将来行为有所改变。