This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Note: This feature is available in Web Workers.
The read-only width property of the TextMetrics interface contains the text's advance width (the width of that inline box) in CSS pixels.
Start with this <canvas> element:
<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;
| Specification |
|---|
| HTML> # dom-textmetrics-width-dev> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
width |
2 | 12 | 1.5 | 9 | 4 | 18 | 31 | 10.1 | 3.2 | 1.0 | 4.4 | 3.2 |
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https://developer.mozilla.org/en-US/docs/Web/API/TextMetrics/width