Array.isArray()
The Array.isArray() static method checks whether a value is an array.
Status
Baseline Widely Available (since 2018-01-29)
MDN documentation
Specifications
- ECMAScript® 2026 Language Specification (#sec-array.isarray), from TC39 (Ecma International).
Browser support
- Chrome 4 Released on 2010-01-25
- Chrome Android 18 Released on 2012-06-27
- Edge 12 Released on 2015-07-29
- Firefox 4 Released on 2011-03-22
- Firefox for Android 4 Released on 2011-03-29
- Safari 5 Released on 2010-06-07
- Safari on iOS 5 Released on 2011-10-12
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