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    Function.prototype

    Summary

    The Function.prototype property represents the Function prototype object.

    Description

    Function objects inherit from Function.prototypeFunction.prototype cannot be modified.

    Properties

    Function.arguments
    An array corresponding to the arguments passed to a function. This is deprecated as property of Function, use the arguments object available within the function instead.
    Function.arity
    Used to specifiy the number of arguments expected by the function, but has been removed. Use the length property instead.
    Function.caller
    Specifies the function that invoked the currently executing function.
    Function.length
    Specifies the number of arguments expected by the function.
    Function.name
    The name of the function.
    Function.displayName
    The display name of the function.
    Function.prototype.constructor
    Specifies the function that creates an object's prototype. See Object.prototype.constructor for more details.

    Methods

    Function.prototype.apply()
    Applies the method of another object in the context of a different object (the calling object); arguments can be passed as an Array object.
    Function.prototype.bind()
    Creates a new function which, when called, itself calls this function in the context of the provided value, with a given sequence of arguments preceding any provided when the new function was called.
    Function.prototype.call()
    Calls (executes) a method of another object in the context of a different object (the calling object); arguments can be passed as they are.
    Function.prototype.isGenerator()
    Returns true if the function is a generator; otherwise returns false.
    Function.prototype.toSource()
    Returns a string representing the source code of the function. Overrides the Object.prototype.toSource method.
    Function.prototype.toString()
    Returns a string representing the source code of the function. Overrides the Object.prototype.toString method.

    Specifications

    Specification Status Comment
    ECMAScript 1st Edition. Implemented in JavaScript 1.1 Standard Initial definition.
    ECMAScript 5.1 (ECMA-262)
    The definition of 'Function.prototype' in that specification.

    For Function instances:
    ECMAScript 5.1 (ECMA-262)
    The definition of 'Function.prototype' in that specification.
    Standard  
    ECMAScript 6 (ECMA-262)
    The definition of 'Function.prototype' in that specification.

    For Function instances:
    ECMAScript 6 (ECMA-262)
    The definition of 'Function.prototype' in that specification.
    Draft  

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
    Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

    See also

    Document Tags and Contributors

    Last updated by: fscholz,