October 2002
Intermediate to advanced
136 pages
2h 44m
English
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Name
Arguments
Synopsis
arguments[n]
arguments.lengthDescription
The Arguments object is defined only within a function body, and
within every function body, the local variable arguments refers to the Arguments object for
that function. The Arguments object is an array whose elements are the
values that were passed as arguments to the function. Element 0 is the
first argument, element 1 is the second argument, and so on. All
values passed as arguments become array elements of the Arguments
object, whether or not those arguments are given names in the function
declaration.
Properties
calleeA reference to the function that is currently executing. Useful for recursion in unnamed functions. JS 1.2; JScript 5.5; ECMA v1; only defined within a function body.
lengthThe number of arguments passed to the function. JS 1.1; JScript 2; ECMA v1; only defined within a function body.
See Also
Function
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.