Hoisting is a way in which JavaScript deals with variable and function declarations. What actually the JavaScript interpreter does is, it pushes all your Function and Variable declarations to the top of the containing scope.
In Directives there is one more attribute named : “require” , which gives us the liberty to include another directive and inject its controller as the fourth argument to the linking function. It accept both string as well as array type. In case of array, the controllers are included in the given order. There are some prefixes, when applied before controller name, provides different functionality.
We often need to upload a file without refreshing page or even before user submits the complete form. We have been using flash uploaders or i-frames to achieve that. However now it is possible to upload a file using only ajax and javascript. The first thing we need is a HTML form that will allow […]
PhantomJS is used to emulate browsers through command line, for generating PDFs, web page manipulation, headless testing and much more interesting stuff. Npm provides us a module called “node-phantom” which helps us to use PhantomJS in our NodeJS application in a non-fussy way. A prerequisite for using this module is, you must have PhantomJS binary […]
Any well written piece of code should be defensive by nature with defensive error handling understanding that things could go wrong. Things would be great if we can define our own custom error classes which we can pass or throw in order to distinguish various errors. Custom error constructors helps in: ⇒ Identifying which error was […]
Using Fusion charts you can create different variety of charts two of them are single series chart and multiple series chart . As the name implies in case of single series chart you can only display single chart and in case of multiple series chart you can display multiple charts. Now lets take an example […]
Stunning fusion charts will wow your audience . You can download javascript files for free trail of fusion chart from here . Following Javascript files are required to create fusion charts : [js] <script src="../js/jquery.min.js"></script> <script src="../js/FusionCharts.js"></script> <script src="../js/FusionCharts.HC.js"></script> <script src="../js/FusionCharts.HC.Charts.js"></script> <script src="../js/FusionCharts.jqueryplugin.js"></script> <script src="../js/FusionChartsExportComponent.js"></script> [/js] Let us take a small example to demonstrate how […]
In my project on Angular.js I came across a use case where I needed to paginate the HTML tables . DataTable jQuery plugin is a perfect choice in order to accomplish this task. Let us take a simple example to illustrate the use of dataTable plugin: [js] <html> <head> <style> <link rel="stylesheet" type="text/css" href="http://ajax.aspnetcdn.com/ajax/jquery.dataTables/1.9.4/css/jquery.dataTables.css"> </style> […]
Many a times, we face a requirement where we need only one object of a class to communicate across the application. Singleton Pattern comes into role in this scenario. Singleton is one of my favorite Design Patterns. Singleton pattern restricts us to initialize more than one object. We implement Singleton by creating a class, having […]
