valueOf Method (Object) (JavaScript)

Returns the primitive value of the specified object.


object.valueOf( )  


The required object reference is any intrinsic JavaScript object.

The valueOf method is defined differently for each intrinsic JavaScript object.

Object Return Value
Array Returns the array instance.
Boolean The Boolean value.
Date The stored time value in milliseconds since midnight, January 1, 1970 UTC.
Function The function itself.
Number The numeric value.
Object The object itself. This is the default.
String The string value.

The Math and Error objects do not have a valueOf method.


Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported Store apps (Windows 8 and Windows Phone 8.1). See Version Information.

Applies To: Array Object| Boolean Object| Date Object| Function Object| Number Object| Object Object| String Object

See Also

toString Method (Object)