Function.prototype

Function.prototype is een eigenschap die het Function prototype object representeert.

Description

Function objecten erven van Function.prototype.  Function.prototype kan niet worden gewijzigd.

Properties

Function.arguments

Een array die correspondeert met de argumenten die een functie doorgegeven krijgt. Dit is veroudered als eigenschap van Function, gebruik in plaats daarvan het arguments object dat binnen de functie beschikbaar is.

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()

Calls a function and sets its this to the provided value, arguments can be passed as an Array object.

Function.prototype.bind()

Creates a new function which, when called, has its this set to the provided value, with a given sequence of arguments preceding any provided when the new function was called.

Function.prototype.call()

Calls (executes) a function and sets its this to the provided value, 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

Browser compatibility

See also

• Function