GeneratorFunction - JavaScript | MDN

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generator functions

The GeneratorFunction object provides methods for generator functions. In JavaScript, every generator function is actually a GeneratorFunction object.

GeneratorFunction()

GeneratorFunction.prototype.constructor

The constructor function that created the instance object. For GeneratorFunction instances, the initial value is the GeneratorFunction constructor.

GeneratorFunction.prototype.prototype

The constructor function that created the instance object. For GeneratorFunction instances, the initial value is the GeneratorFunction constructor.

Generator.prototype

All generator functions share the same prototype property, which is Generator.prototype. Each generator function created with the function* syntax or the GeneratorFunction() constructor also has its own prototype propert

[Symbol.toStringTag]

The initial value of the [Symbol.toStringTag] property is the string "GeneratorFunction". This property is used in Object.prototype.toString().

Object.prototype.toString()

The initial value of the [Symbol.toStringTag] property is the string "GeneratorFunction". This property is used in Object.prototype.toString().

function* expression

AsyncGeneratorFunction

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This page was last modified on Jul 10, 2025 by MDN contributors.

[Symbol.hasInstance]()

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__lookupGetter__()

__lookupSetter__()

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