Web/JavaScript/Reference/Global objects/Map/@@toStringTag

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

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

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

Syntax

Map[Symbol.toStringTag]

Examples

Using toStringTag

Object.prototype.toString.call(new Map()) // "[object Map]"

Specifications

Specification
ECMAScript (ECMA-262)The definition of 'Map.prototype[@@toStringTag' in that specification.]

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
@@toStringTag	Chrome Full support 44	Edge Full support 79	Firefox Full support 51	IE No support No	Opera No support No	Safari Full support 9.1	WebView Android Full support 44	Chrome Android Full support 44	Firefox Android Full support 51	Opera Android No support No	Safari iOS Full support 9.3	Samsung Internet Android Full support 4.0	nodejs Full support 6.0.0

Legend

Full support  

Full support

No support  

No support

See also

• Symbol.toStringTag

Map.prototype[@@toStringTag] by Mozilla Contributors is licensed under CC-BY-SA 2.5.