Window innerWidth and innerHeight Properties
Example
Get the current frame's height and width:
var w = window.innerWidth;
var h = window.innerHeight;
Try it Yourself »
More "Try it Yourself" examples below.
Definition and Usage
The innerWidth property returns the width of a window's content area.
The innerHeight property returns the height of a window's content area.
These properties are read-only.
Tip: Use the outerWidth and outerHeight properties to get the width/height of the browser window.
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
| Property | |||||
|---|---|---|---|---|---|
| innerWidth | 1.0 | 9.0 | 1.0 | 3.0 | 9.0 |
| innerHeight | 1.0 | 9.0 | 1.0 | 3.0 | 9.0 |
Note: For IE8 and earlier, you can use the clientWidth and clientHeight properties (See "More Examples" below).
Syntax
window.innerWidth
window.innerHeight
Technical Details
| Return Value: | A Number, representing the width and/or the inner height of the browser window's content area, in pixels |
|---|
More Examples
Example
A cross-browser solution (using clientWidth and clientHeight for IE8 and earlier):
var w = window.innerWidth
|| document.documentElement.clientWidth
|| document.body.clientWidth;
var h = window.innerHeight
|| document.documentElement.clientHeight
|| document.body.clientHeight;
Try it Yourself »
Example
A demonstration of innerWidth, innerHeight, outerWidth and outerHeight in one example:
var txt = "";
txt += "<p>innerWidth: " + window.innerWidth + "</p>";
txt += "<p>innerHeight: " + window.innerHeight + "</p>";
txt += "<p>outerWidth: " + window.outerWidth + "</p>";
txt += "<p>outerHeight: " + window.outerHeight + "</p>";
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❮ Window Object
