Download AngularJS Essentials by Rodrigo Branas PDF

By Rodrigo Branas

This e-book is a pragmatic consultant jam-packed with real-world examples to help you detect the easiest practices of the AngularJS framework, overlaying its most crucial thoughts equivalent to directives, expressions, filters, and modules and guiding you thru the stairs of creating your personal internet application.

You will begin via studying find out how to create reusable elements with directives, experiencing an expressive approach of constructing software program. Then we'll movement directly to hide info dealing with, and you'll the best way to use many of the positive aspects of the AngularJS framework to complete any problem relating to proposing, reworking, and validating info on a user's interface.

After that, we are going to discover the secrets and techniques of the dependency injection mechanism to be had in AngularJS, bringing reuse and testability for your program by way of decoupling the layers. The publication also will conceal the easiest practices of utilizing the framework and the way to automate the try out and the project's workflow.

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Inside the ngClick directive, we will call the park function, passing car as a parameter. As long as we have access to the scope through the controller, it would not be easy if we just accessed it directly, without passing any parameter at all. Keep in mind that we must take care of the coupling level between the view and the controller. One way to keep it low is to avoid reading the scope object directly from the controller and replacing this intention by passing everything it needs with the parameter from the view.

Length > 0"> The parking lot is empty

Depending on the implementation, you can use the complementary ngHide directive of ngShow. The ngIf directive The nglf directive could be used in the same way as the ngShow directive; however, while the ngShow directive just deals with the visibility of the element, the ngIf directive prevents the rendering of an element in our template. The ngInclude directive AngularJS provides a way to include other external HTML fragments in our pages. The ngInclude directive allows the fragmentation and reuse of the application layout and is an important concept to explore.

It throws an error if the controller is not defined within any parent element. ^ This parameter tries to locate the controller in the parent element, passing null to the controller parameter of the link function if not found. This parameter locates the controller inside the current element. It throws an error if the controller is not defined within the require directive. In our last example, each accordion is independent. We can open and close all of them at our will. active; }); }); } }; }); Now, we need to define the controller inside the accordion directive; otherwise, an error will be thrown that says the controller can't be found.

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