Hands-On Data Structures and Algorithms with JavaScript

Using the stack

To use the Stack class created previously, you would have to make a minor change to allow the stack to be used based on the environment in which you are planning to use it. Making this change generic is fairly straightforward; that way, you do not need to worry about multiple environments to support and can avoid repetitive code in each application:

// AMDif (typeof define === 'function' && define.amd) {    define(function () { return Stack; });// NodeJS/CommonJS} else if (typeof exports === 'object') {    if (typeof module === 'object' && typeof module.exports ===    'object') {        exports = module.exports = Stack;    }// Browser} else {    window.Stack = Stack;}

Once we add this logic to the stack, it is multi-environment ready. For the purpose ...