Microsoft JScript
length Property (Function)
Language Reference
Version 2

See Also Applies To


Description
Contains the number of arguments a function is defined with.
Syntax
functionname.length

The functionname argument is required and is the name of the function in question.

Remarks
The length property of a function is initialized by the scripting engine to the number of arguments in the function's definition when an instance of the function is created.

What happens when a function is called with a number of arguments different from the value of its length property depends on the function.


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