The Call() Method : Inheritance « Object Oriented « JavaScript Tutorial

1. JavaScript Tutorial
2. Object Oriented
3. Inheritance

The first argument of the Call() Method is the object to be used for 'this'.

All other arguments are passed directly to the function itself.

function sayColor(sPrefix, sSuffix) {
    alert(sPrefix + this.color + sSuffix);
};

var obj = new Object();
obj.color = "red";

sayColor.call(obj, "The color is ", ", a very nice color indeed. ");