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

var perspective = DOMPointReadOnly.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 1
The definition of 'w' in that specification.
Candidate Recommendation Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
wChrome Full support 61Edge No support NoFirefox Full support 31IE No support NoOpera Full support 48Safari Full support 10.1WebView Android Full support 61Chrome Android Full support 61Firefox Android Full support 31Opera Android Full support 45Safari iOS Full support 10.3Samsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

See also

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