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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage 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 specification changes.

The left read-only property of the DOMRectReadOnly interface returns the left coordinate value of the DOMRect. (Has the same value as x, or x + width if width is negative.)


var recLeft = DOMRect.left;


A double.


Specification Status Comment
Geometry Interfaces Module Level 1
The definition of 'left' in that specification.
Candidate Recommendation Latest spec version is an ED.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support No support

No support

No support

No support
Feature Android Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile Chrome for Android
Basic support No support (Yes) No support No support No support No support No support

See also

Document Tags and Contributors

 Contributors to this page: rolfedh, chrisdavidmills
 Last updated by: rolfedh,