Things to learn. Check these technologies: [NodeJS], [JS-Games], [AngularJS], [PHP Academy]
Web Host Manager, or WHM, is a powerful program that allows administrative access to the back end of cPanel. There are two versions that Host Gator uses. Reseller accounts get basic WHM. Dedicated Servers and VPS accounts get root WHM (also called rWHM), which has features that require root access to the server enabled. Resellers can not have rWHM.
The only way to return the data from the function would be to make a synchronous call instead of an asynchronous call, but that would freeze up the browser while it's waiting for the response. You can pass in a callback function that handles the result or even better you can use a promise. You can store your promise, you can pass it around, you can use it as an argument in function calls and you can return it from functions, but when you finally want to use your data that is returned by the AJAX call.
JavaScript is a very flexible object-oriented language when it comes to syntax. It's important to note that there are no classes in JavaScript. Functions can be used to somewhat simulate classes, but in general JavaScript is a class-less language. Here are the two ways I use to create classes.
Advanced HTML5 Hybrid Mobile App Framework. Free and open source, Ionic offers a library of mobile-optimized HTML, CSS and JS components, gestures, and tools for building highly interactive apps. Built with Sass and optimized for AngularJS. Basic setup.