One of the libraries we will be utilizing in our sample application will be Underscore.js. Underscore has become extremely popular in the last couple of years due to the many utility methods it provides developers without extending built-in JavaScript objects, such as String, Array, or Object. While it provides many useful methods, the suite has also been optimized and tested across many of the most popular web browsers, including Internet Explorer. For these reasons, the community has widely adopted this library and continually supported it.
Underscore is extremely easy to implement in our applications. In order to get Underscore going, all we need to do is include it on our page like so:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title></title>
<meta name="description" content="">
...