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

No compatibility data found. Please contribute data for "api.DOMPointReadOnly.z" (depth: 1) to the MDN compatibility data repository.

See also

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

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