HTML canvas measureText() Method
Example
Check the width of the text, before writing it on the canvas:
JavaScript:
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
ctx.font = "30px Arial";
let txt = "Hello World"
ctx.fillText("width:" + ctx.measureText(txt).width, 10, 50)
ctx.fillText(txt, 10, 100);
Try it Yourself »
Description
The measureText() method returns an object that contains the width of the specified text, in pixels.
Tip: Use this method if you need to know the width of a text, before writing it on the canvas.
| JavaScript syntax: | context.measureText(text).width; |
|---|
Parameter Values
| Parameter | Description | Play it |
|---|---|---|
| text | The text to be measured | Play it » |
Browser Support
The <canvas> element is an HTML5 standard (2014).
measureText() is supported in all modern browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | 9-11 |
❮ Canvas API
