Another Javascript library.....Argh!!!!! Please!!! I know guys, that you all have already come across scores of JavaScript libraries by now, but this one, my friends, is the one which you were missing while doing complex calculations and data processing. UnderscoreJS might seem as yet another JavaScript framework, which you might not be interested in learning, when jQuery is almost catering to all your JS needs. However, you might be mistaken here, as frameworks like jQuery/mootools/ExtJs/Ember/Backbone/Angular......are meant to action on the front-end or simply, the DOM. On the other hand, UnderscoreJS primarily focuses on easy handling of Objects and Arrays . Functions like filtering, array/object mapping, grouping, type checking etc, which you always longed for and which don't come along with the vanilla JavaScript, are available at your discretion with underscorejs. If you come from PHP background(like me), you know that PHP provides out-of-the-box functions like ar