Core JavaScript 1.5 Reference:Global Objects:Function:arguments

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Contents 1 Summary 2 Description 3 Notes 4 Example

[edit] Summary

An array-like object corresponding to the arguments passed to a function.

[edit] Description

Use the arguments object available within functions instead of Function.arguments.

[edit] Notes

In the case of recursion, i.e. if function f appears several times on the call stack, the value of f.arguments represents the arguments corresponding to the most recent invocation of the function.

[edit] Example

function f(n) { g(n-1) }
function g(n) {
  print("before: " + g.arguments[0]);
  if(n>0)
    f(n);
  print("after: " + g.arguments[0]);
}
f(2)

outputs:

before: 1
before: 0
after: 0
after: 1