Core Web Programming, Second Edition

25.9. The Function Object

The Function object corresponds to a JavaScript function, not to any HTML element.

Constructor

new Function(arg0Name, … , argNName, bodyString) This constructor builds a new function. For instance, the following two forms have the same effect, but the second can be performed inside another routine at run time.

function square(x) { return(x * x); }
square = new Function("x", "return(x * x)");

Properties

arguments From within the body of a function, this property gives an array of arguments used to call the function. Use this property to create variable-argument functions. For example, the following function adds any number of values together.

 function sum() { var total = 0; for(var i=0; i<arguments.length; i++) { total ...