length Property (Function)
| Language Reference
See Also Applies To
Contains the number of arguments a function is defined with. (String.length and Array.length also exist)
The functionname argument is required and is the name of the function in question.
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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