The CanvasRenderingContext2D
.measureText()
method returns a TextMetrics
object that contains information about the measured text (such as its width, for example).
Syntax
ctx.measureText(text);
Parameters
text
- The text
String
to measure.
Return value
A TextMetrics
object.
Example
Given 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('Hello world'); console.log(text.width); // 56;
Specifications
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'CanvasRenderingContext2D.measureText' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
measureText | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 2 | IE Full support 9 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
See also
- The interface defining this method:
CanvasRenderingContext2D
TextMetrics