generator functions share the same [ ` prototype ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/Function/prototype) property,
which is [ ` Generator.prototype ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/Generator) . Each generator
function instance also has its own ` prototype ` property. When the generator
function is called, the returned generator object inherits from the generator
function's ` prototype ` property, which in turn inherits from `
GeneratorFunction.prototype.prototype ` .

` GeneratorFunction.prototype[@@toStringTag] `

    

The initial value of the [ ` @@toStringTag ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toStringTag) property
is the string ` "GeneratorFunction" ` . This property is used in [ `
Object.prototype.toString() ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString) .

##  Instance methods

_Inherits instance methods from its parent[ ` Function ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/Function) _ .

##  Specifications

Specification  
---  
[ ECMAScript Language Specification  
#  sec-generatorfunction-objects  ](https://tc39.es/ecma262/multipage/control-
abstraction-objects.html#sec-generatorfunction-objects)  
  
##  Browser compatibility

BCD tables only load in the browser  with JavaScript enabled. Enable
JavaScript to view data.

##  See also

  * [ ` function* ` ](/en-US/docs/Web/JavaScript/Reference/Statements/function*)
  * [ ` function* ` expression ](/en-US/docs/Web/JavaScript/Reference/Operators/function*)
  * [ ` Function ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function)
  * [ ` AsyncFunction ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncFunction)
  * [ ` AsyncGeneratorFunction ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncGeneratorFunction)
  * [ Functions ](/en-US/docs/Web/JavaScript/Reference/Functions)

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