Download AngularJS by Brad Green, Shyam Seshadri PDF

By Brad Green, Shyam Seshadri

Develop smaller, lighter internet apps which are basic to create and straightforward to check, expand, and keep as they develop. This hands-on advisor introduces you to AngularJS, the open resource JavaScript framework that makes use of Model–view–controller (MVC) structure, information binding, client-side templates, and dependency injection to create a much-needed constitution for construction internet apps.

Guided through engineers who labored on AngularJS at Google, you’ll stroll throughout the framework’s key positive factors, after which construct a operating AngularJS app—from format to trying out, compiling, and debugging. You’ll find out how AngularJS is helping decrease the complexity of your internet app.
* Dive deep into Angular’s development blocks and find out how they interact
* achieve greatest flexibility via isolating good judgment, information, and presentation duties with MVC
* gather your complete app within the browser, utilizing client-side templates
* Use AngularJS directives to increase HTML with declarative syntax
* converse with the server and enforce uncomplicated caching with the $http carrier
* Use dependency injection to enhance refactoring, testability, and a number of surroundings layout
* Get code samples for universal difficulties you face in such a lot net apps

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Sample text

You might imagine using the $index to label rows in a table. album = album; } We get the following: 1 Southwest Serenade 2:34 2 Northern Light Waltz 3:21 3 Eastern Tango 17:45 Hiding and Showing For menus, context-sensitive tools, and many other cases, showing and hiding elements is a key feature. As with everything else in Angular, we drive UI changes based on change in a model, and reflect that change into the UI through directives. Here, it’s ng-show and ng-hide that do our work. They provide equivalent but inverse functionality for showing and hiding based on the expression you pass to them.

This works great with Angular, and in older non-HTML5 browsers, Angular will polyfill these with directives that per‐ form the same jobs. We can then add a controller to this to handle the submission by changing the form to reference it. Validating User Input | 45

Inside the controller, we can access the validation state of the form through a property called $valid. Angular will set this to true when all the inputs in the form are valid.

You should use whichever makes more sense to express your intention. These directives work by setting the element styles to display:block to show and display:none to hide as appropriate. Let’s take a fictitious example where we’re building the control panel for a Death Ray. show; }; // death ray functions left as exercise to reader } Templates and Data Binding | 23 CSS Classes and Styles It may be obvious by now that you can dynamically set classes and styles in your appli‐ cation just by data binding them using the {{ }} interpolation notation.

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