How does JavaScript manage all the parameters?

This article mainly explains "how JavaScript manages all the parameters". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how JavaScript manages all the parameters".

1. Use the arguments object to manage all parameters arguments is an array object

Function testparams ()

{

Var param= ""

For (var iTuno Bandi)

Param=param+arguments [i]

}

two。 Create a dynamic function:

Var varName=new function (argument1,...lastargument)

Description: all parameters must be string type, and the last parameter must be the function program code of this function.

Var square=new function ("x", "y", "var sum;sum=x*x+y*y;return sum")

Alert (square (2)

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