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Object.prototype.__count__

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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This feature is obsolete.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

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support No support No support No support No support No support
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support No support No support No support No support No support

See also

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