Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

Note: Starting in Gecko 6.0, document.width is no longer supported. Instead, use document.body.clientWidth. See element.clientWidth.

Returns the width of the <body> element of the current document in pixels.

Not supported by Internet Explorer.

Syntax

pixels = document.width;

Example

function init() {
    alert("The width of the document is " + document.width + " pixels.");
}

Alternatives

document.body.clientWidth              /* width of <body> */
document.documentElement.clientWidth   /* width of <html> */
window.innerWidth                      /* window's width */

Specification

HTML5

Browser compatibility

 

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No ? No ? ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No No ? No ? ? ?

 

See also