The DOMPoint interface's z property specifies the depth coordinate of a point in space. Unless transforms have changed the orientation, a z of 0 is the plane of the screen, with positive values extending outward toward the user from the screen, and negative values receding into the distance behind the screen.


var zPos = DOMPoint.z;


A double-precision floating-point value indicating the z coordinate's 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).


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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support61 No31 No48 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support6161 No3148 No ?

See also

  • The other coordinate properties: x, y, and the perspective value, w.

Document Tags and Contributors

Contributors to this page: sideshowbarker, Sheppy
Last updated by: sideshowbarker,