Symbol.prototype

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  1. Description
  2. Properties
  3. Methods
  4. Specifications
  5. Browser compatibility

The Symbol.prototype property represents the prototype for the Symbol constructor.

Property attributes of Symbol.prototype
Writable no
Enumerable no
Configurable no

Description

Symbol instances inherit from Symbol.prototype. You can use the constructor's prototype object to add properties or methods to all Symbol instances.

Properties

Symbol.prototype.constructor
Returns the function that created an instance's prototype. This is the Symbol function by default.

Methods

Symbol.prototype.toSource()
Returns a string containing the source of the Symbol object. Overrides the Object.prototype.toSource() method.
Symbol.prototype.toString()
Returns a string containing the description of the Symbol. Overrides the Object.prototype.toString() method.
Symbol.prototype.valueOf()
Returns the primitive value of the Symbol object. Overrides the Object.prototype.valueOf() method.
Symbol.prototype[@@toPrimitive]
Returns the primitive value of the Symbol object.

Specifications

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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support381236 No259
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes38 Yes36259 Yes

Document Tags and Contributors

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 Contributors to this page: wbamberg, fscholz, jameshkramer, jonny5, ZeikJT, arai
 Last updated by: wbamberg,