AngularJS: Novice to Ninja: Elegant, Powerful, Testable, by Sandeep Panda

By Sandeep Panda

AngularJS: beginner to Ninja is the right booklet to trip into the realm of AngularJS, the superheroic JavaScript framework. built and maintained through Google, AngularJS brings the Model-View-Controller (MVC) development to JavaScript functions and gives a top quality beginning for development complicated and robust apps quick. you are going to start with the fundamentals together with Angular's magical two-way information binding and the way to jot down test-friendly code. very quickly you may be relocating directly to comprehend extra complex themes like scope, dependency injection, filters, and masses extra.

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Sample text

Let's create a short and simple app. Objective: To create an HTML page that asks users their annual salary and the percentage of that they want to spend buying gadgets. There should be two input text fields: one for salary and the other for percentage. There is also a tag which displays the result of calculation. As soon as the value of any field changes the result is updated. Implementation: Just imagine how you would implement this in plain JavaScript or jQuery. First you would create the required input fields and result .

On the other hand, when the value of the view component changes the model is also updated. If you are from a Flex/ActionScript background you have probably used this kind of data binding almost every day. But this kind of feature is new in HTML. It lets you treat the model data as the single source of truth, which, in turn, frees you from programmatically manipulating the DOM. AngularJS guarantees that your view is always stays updated with the latest model data. So, you just change the data and your view is updated automatically without any extra effort.

The current date/time is . Try Out Code Snippets Quickly To try these small code snippets you don't always need to open up your editor and start the server. Here's a simple trick. co/edit/ in your browser. x. This will create an AngularJS project for you. js in the left sidebar. html in the left sidebar. info Modules, Controllers & Data Binding on the right sidebar. Now whenever you make any changes to the source the output will automatically refresh. Adding Logic to the Controller Apart from handling user inputs and setting scope models, a controller often sets functions to the $scope.

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