Functions overview. Underscore.js. Underscore is a JavaScript library that provides a whole mess of useful functional programming helpers without extending any built-in objects.
It’s the answer to the question: “If I sit down in front of a blank HTML page, and want to start being productive immediately, what do I need?” … and the tie to go along with jQuery's tux and Backbone's suspenders. Underscore provides 80-odd functions that support both the usual functional suspects: map, select, invoke — as well as more specialized helpers: function binding, javascript templating, deep equality testing, and so on. It delegates to built-in functions, if present, so modern browsers will use the native implementations of forEach, map, reduce, filter, every, some and indexOf. The project is hosted on GitHub. Prism. Cookie.js !! Very useful. Moment.js - A lightweight javascript date library.
JSHint - Check syntax. Spin.js - Loader. JavaScript for interactive developers. [JS] Array and Matrix Initialization, Sorting Dictionaries and Objects - included to GIST.JS. Functions Explained. A Deep Dive into JavaScript Functions Based on my readership I have to assume most of you are familiar with JavaScript already.
Therefore, it may seem odd to include a post on functions. After all, they are one of the most rudimentary components of JavaScript. My assertion is this, just as a person can speak a language without the ability to read or write it, so too can developers use functions in JavaScript and yet be blissfully unaware of their complexities.