Map.prototype[@@toStringTag]
The Map[@@toStringTag] property has an initial value of "Map".
Property attributes of Map.prototype[@@toStringTag] |
|
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | yes |
Syntax
JavaScript
Copy Code
Map[Symbol.toStringTag]
Example
JavaScript
Copy Code
Object.prototype.toString.call(new Map()) // "[object Map]"
Specifications
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Map.prototype[@@toStringTag]' in that specification. |
Standard | Initial definition. |
| ECMAScript 2017 Draft (ECMA-262) The definition of 'Map.prototype[@@toStringTag]' in that specification. |
Draft |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 44.0 | No support | No support | No support | No support |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | No support | 44.0 | No support | No support | No support | No support | 44.0 |
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/map/@@tostringtag