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[function.]arguments[n]

function: Optional. The name of the currently executing Function object.

n: Required. The zero-based index to argument values passed to the Function object.

You cannot explicitly create an arguments object. The arguments object only becomes available when a function begins execution. The arguments object of the function is not an array, but the individual arguments are accessed the same way array elements are accessed. The index n is actually a reference to one of the 0n properties of the arguments object.

The following example illustrates the use of the arguments object.

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function ArgTest(a, b){ var i, s = "The ArgTest function expected "; var numargs = arguments.length; //Get number of arguments passed. var expargs = ArgTest.length; //Get number of arguments expected. if (expargs < 2) s += expargs + " argument. "; else s += expargs + " arguments. "; if (numargs < 2) s += numargs + " was passed."; else s += numargs + " were passed."; s += "\n\n" for (i =0 ; i < numargs; i++){ //Get argument contents. s += " Arg " + i + " = " + arguments[i] + "\n"; } return(s); //Return list of arguments. }

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function ArgTest(a, b){
   var i, s = "The ArgTest function expected ";
   var numargs = arguments.length;     //Get number of arguments passed.
   var expargs = ArgTest.length;       //Get number of arguments expected.
   if (expargs < 2)
      s += expargs + " argument. ";
   else
      s += expargs + " arguments. ";
   if (numargs < 2)
      s += numargs + " was passed.";
   else
      s += numargs + " were passed.";
   s += "\n\n"
   for (i =0 ; i < numargs; i++){      //Get argument contents.
   s += "  Arg " + i + " = " + arguments[i] + "\n";
   }
   return(s);                          //Return list of arguments.
}

Version 1

Reference

0...n Properties (JScript 5.6)
callee Property (JScript 5.6)
caller Property (JScript 5.6)
length Property (arguments) (JScript 5.6)

Arguments

Remarks

Example

Requirements

See Also

Reference

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