Download e-book for iPad: Dependency Injection with AngularJS by Alex Knol

By Alex Knol

ISBN-10: 1782166564

ISBN-13: 9781782166566

Layout, keep watch over, and deal with your dependencies with AngularJS dependency injection

Understand the idea that of dependency injection Isolate devices of code in the course of checking out JavaScript utilizing Jasmine Create reusable elements in AngularJS
In Detail

Dependency injection enables greater checking out by means of permitting us to mock dependencies in trying out environments in order that we in basic terms try out something at a time. It additionally permits us to jot down extra maintainable code via decoupling our items from their implementations. the incentive for utilizing it in AngularJS is to enable you transparently load mocked gadgets in tests.

This e-book is a realistic handbook to get you begun on dependency injection. it's going to additionally take you alongside the line to making testable and reusable code. making sure productiveness and balance are the 2 most crucial issues that you'll learn.

"Dependency Injection with AngularJS" will introduce you to AngularJS utilizing an easy pattern venture. via portraying alternative ways of constructing code modules, it's going to convey you some great benefits of dependency injection. this may result in the facility to create reusable parts that could simply be established.

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Extra info for Dependency Injection with AngularJS

Sample text

Js. In this file we will test the filter we have written. toBeDefined(); }); }); }); }); This will perform a simple test to see if the filter exists. Before we look into how the test is constructed, let's take a look at the output in the browser. html. info Chapter 4 Every time you refresh the browser, the tests are run again and the result is shown. Now for the test code there are two describe blocks: the outer one tests filters and the inner one specifies the minimum filter. In the outer loop of the beforeEach block, the module for our application is loaded: beforeEach( module('tempApp') ); This happens before any of the inner blocks that follow inside the outer block.

Html file and see the Jasmine tests in action. html file to find out how Jasmine gets all the files together. 1/jasmine-html. -- include source files here... -- include spec files here... info Testing After loading the Jasmine styles and libraries, the source files are loaded first and then the tests under /spec; although the order in which the files are loaded doesn't matter. By the way, the term "spec" comes from "behavior specification", which is what drives behavior-driven tests. The inline JavaScript in the following code snippet is the configuration of Jasmine and the reporter that is used to output the test results.

Org. This is a registry for public modules to be used for your Angular applications. It includes modules for using jQuery UI or Twitter Bootstrap in your project. Have a look around; there are many useful modules available. After all, the first rule of software development is to make sure that you are not going to make something that is already available. The theory behind Dependency Injection We have now used Dependency Injection and seen it in action. By now you should have a decent grasp of why it is useful, but what about the theory behind it?

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Dependency Injection with AngularJS by Alex Knol

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