What is arguments object in JavaScript?


Arguments object in JavaScript is an object, which represents the arguments to the function executing. Its syntax has two arguments:

[function.]arguments[p]

Example

You can try to run the following code to learn what are arguments object in JavaScript

Live Demo

<html>
   <body>
      <script>
         function functionArgument(val1, val2, val3) {
            var res = "";
            res += "Expected Arguments: " + functionArgument.length;
            res += "<br />";
            res += "Current Arguments : " + arguments.length;

            res += "<br />";
            res += "Each argument = "

            for (p = 0; p < arguments.length; p++) {
               res += "<br />";
               res += functionArgument.arguments[p];
               res += " ";
            }
            document.write(res);
         }
         functionArgument(20, 50, 80, "Demo Text!","Hello World", new Date())
      </script>
   </body>
</html>

Updated on: 08-Jan-2020

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