Just another tech blog!!

Hey, Back, again!! This time we will talk about some weird things which only happen in JavaScript. When I say weird, it means that if you come from a C++ or PHP or JAVA background it will be hard for you to digest that many concepts that we learned for those languages, and then think will apply in all the majority of programming languages out there, don't anymore apply here in JavaScript. A very classical and highly cited example is Objects and Inheritance without Classes, well I never imagined this could be done, but JavaScript does it, that too elegantly. Probably you are already aware that for Class JavaScript uses function(){} and not the conventional OOP Class. Well actually it uses or rather can use function for multiple other uses as well. Lets go through some of the amazing features of JavaScript. Loosely Typed Try this for a function in your browser console - If you look carefully here, func is a variable(in the way it is defined) which is used as a func

Hi all, You must have definitely used the Profiling in Codeigniter and error_reporting many a times in Development and Testing environment, but I am sure you must have missed it on a real Production environment. As there are scenarios, where you want to quickly debug the Production application and find out what PHP errors is the application throwing, check the page profile, that too without putting the time and effort in replicating the whole production environment on your local machine, or perhaps a testing server. This small piece of code(we could perhaps call it a hack), which I have used in almost all of my CI applications, will make your life very easy, without losing anything on the security of the system. Following points, essentially sum up what exactly it does - Check for the dev(or root or admin, whichever name you use for the su access), if it is logged in, as we don't want others to see all the Profile data and other errors. Check for a specific query str

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

Hello Friends!! This post is dedicated to D3.js , which I came across a few months back. Prior to that, I always preferred Google Charts which catered to most of my charting needs. However, since I switched to D3.js I could not find a good reason to move back to Google Chart. If we take a very crude analogy, D3.js would be analogous to an Ubuntu of the OS world, while Google Charts could easily be a Windows 7(just that both of them are free in this case); in the sense that the control and the power the user(in our case the developer) gets from D3.js while working with it, is unmatchable . While Google Charts is simply too cool and simple for a free charting tool, but D3.js is a library which lets you create any chart that you could think and conceptualize, with so much of ease, and it lets you link any kind of interaction/control that you would want to put on events, on any of the elements of the chart. D3.js, like RaphaelJS and PaperJS is a library which is developed to