Web/API/DOMPointReadOnly/w

The DOMPointReadOnly interface's w property holds the point's perspective value, w, for a read-only point in space. If your script needs to be able to change the value of this property, you should instead use the DOMPoint object.

Syntax

const perspective = someDOMPointReadOnly.w

Value

A double-precision floating-point value indicating the w perspective value for the point. This value is unrestricted, meaning that it is allowed to be infinite or invalid (that is, its value may be NaN or ±Infinity). The default is 1.0.

Specifications

Specification	Status	Comment
Geometry Interfaces Module Level 1The definition of 'w' in that specification.	Candidate Recommendation	Initial definition

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.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
w	Chrome Full support 61	Edge Full support 79	Firefox Full support 31	IE No support No	Opera Full support 48	Safari Full support 10.1	WebView Android Full support 61	Chrome Android Full support 61	Firefox Android Full support 31	Opera Android Full support 45	Safari iOS Full support 10.3	Samsung Internet Android Full support 8.0

Legend

Full support  

Full support

No support  

No support

See also

• The other coordinate properties: x, y, and z.

DOMPointReadOnly.w by Mozilla Contributors is licensed under CC-BY-SA 2.5.