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CanvasRenderingContext2D.clearHitRegions

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The CanvasRenderingContext2D.clearHitRegions() method of the Canvas 2D API removes all hit regions from the canvas.

Syntax

void ctx.clearHitRegions();

Examples

Using the clearHitRegions method

This example demonstrates the clearHitRegions() method.

HTML

<canvas id="canvas"></canvas>

JavaScript

const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');

// set some hit regions
ctx.addHitRegion({id: 'eyes'});
ctx.addHitRegion({id: 'nose'});
ctx.addHitRegion({id: 'mouth'});

// remove them altogether from the canvas
ctx.clearHitRegions();

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support Yes
Disabled
Yes
Disabled
Disabled This feature is behind the Experimental Web Platform Features preference. To change preferences in Chrome, visit chrome://flags.
? 38
Disabled
38
Disabled
Disabled From version 38: this feature is behind the canvas.hitregions.enabled preference. To change preferences in Firefox, visit about:config.
No No No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support No No ? 38
Disabled
38
Disabled
Disabled From version 38: this feature is behind the canvas.hitregions.enabled preference. To change preferences in Firefox, visit about:config.
No No No

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/clearHitRegions