The Map[@@toStringTag] property has an initial value of "Map".

Property attributes of Map.prototype[@@toStringTag]
Writable no
Enumerable no
Configurable yes



Example Map()) // "[object Map]"


Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Map.prototype[@@toStringTag]' in that specification.
Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
The definition of 'Map.prototype[@@toStringTag]' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung InternetNode.js
Basic supportChrome Full support 44Edge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android Full support 44Chrome Android Full support 44Edge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android Full support 4.0nodejs No support No


Full support  
Full support
No support  
No support

Document Tags and Contributors

Contributors to this page: wbamberg, fscholz, kdex, arai, nb1080, marcionitao, jpmedley
Last updated by: wbamberg,