This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.
The width property returns and sets the width of an OffscreenCanvas object.
Syntax
var pxl = offscreen.width; offscreen.width = pxl;
Examples
Creating a new offscreen canvas and returning or setting the width of the offscreen canvas:
var offscreen = new OffscreenCanvas(256, 256); offscreen.width; // 256 offscreen.width = 512;
Specifications
Currently drafted as a proposal: OffscreenCanvas.
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | Not supported | 44 (44) [1] | Not supported | Not supported | Not supported |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | Not supported | 44.0 (44) [1] | Not supported | Not supported | Not supported |
[1] This feature is behind a feature preference setting. In about:config, set gfx.offscreencanvas.enabled to true.
See also
OffscreenCanvas, the interface this property belongs to.