Obsolete since Gecko 2 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1)
This feature is obsolete.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.

The __count__ property used to store the count of enumerable properties on the object, but it has been removed.

Syntax

obj.__count__

Examples

{ 1: 1 }.__count__              // 1
[].__count__                    // 0
[1].__count__                   // 1
[1, /* hole */, 2, 3].__count__ // 3

Specifications

Not part of any specification.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic Support No No No No No No
FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support No No No No No No No

See also

Document Tags and Contributors

 Contributors to this page: fscholz, Mingun
 Last updated by: fscholz,