JavaScript Patterns 4.3 Returning Functions

javaScript Patterns 4.3 Returning Functions

Use closure to store some PRivate data, which is accessible by the returned function but not to the outside code.

var setup = function () {    var count = 0;    return function () {            return (count += 1);    };}; // usagevar next = setup();next(); // returns 1next(); // 2next(); // 3