AngularJS: Up and Running: Enhanced Productivity with by Brad Green, Shyam Seshadri

By Brad Green, Shyam Seshadri

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

Guided by means of engineers who labored on AngularJS at Google, you’ll stroll throughout the framework’s key good points, after which construct a operating AngularJS app—from format to trying out, compiling, and debugging. You’ll learn the way AngularJS is helping decrease the complexity of your net app.

Dive deep into Angular’s development blocks and learn the way they paintings together
Gain greatest flexibility through isolating common sense, information, and presentation duties with MVC

Assemble your complete app within the browser, utilizing client-side templates

Use AngularJS directives to increase HTML with declarative syntax

Communicate with the server and enforce uncomplicated caching with the $http service

Use dependency injection to enhance refactoring, testability, and a number of setting design

Get code samples for universal difficulties you face in so much net apps

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

Guided through engineers who labored on AngularJS at Google, you’ll stroll throughout the framework’s key good points, after which construct a operating AngularJS app—from format to trying out, compiling, and debugging. You’ll learn the way AngularJS is helping lessen the complexity of your net app.
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Extra info for AngularJS: Up and Running: Enhanced Productivity with Structured Web Apps

Example text

We will be using some or all of these throughout this book. Of course, Jasmine is ex‐ tensible, and allows you to write your own custom matchers as well. You can read all about it at the Jasmine Matcher page. Writing a Unit Test for Our Controller Now, with both Karma (our test runner) and Jasmine (our test framework) in place, let’s see how we can write tests for the controllers we create in AngularJS. done }; }; }]); We have a very simplistic controller in the preceding example. All it does is assign an array to its instance (to make it available to the HTML), and then has a function to figure 44 | Chapter 3: Unit Testing in AngularJS out the presentation logic, which returns the classes to apply based on the item’s done state.

Index gives us the index or position of the item in the array. • $odd and $even tell us if the item is in an index that is odd or even (we could use this for conditional styling of elements, or other conditions we might have in our application). Do note that in the case of an ng-repeat over an object, all of these list items exist and are still applicable, but the index of the item may or may not correspond to the order in which we declare the keys in the object. This is because of the way AngularJS ngrepeat sorts the keys of the object alphabetically, as we saw in the “ng-repeat Over an Object” on page 28.

That is, uppercase first, and then sorted by alphabet. So in this case, the items would be shown in the HTML in the following order: Misko, brad, shyam. 28 | Chapter 2: Basic AngularJS Directives and Controllers The ng-repeat directive takes an argument in the form variable in arrayExpres sion or (key, value) in objectExpression. When used with an array, the items will be in the order in which they exist in the array. notes = [ {id: 1, label: 'First Note', done: false}, {id: 2, label: 'Second Note', done: false}, {id: 3, label: 'Done Note', done: true}, {id: 4, label: 'Last Note', done: false} ]; }]); In this example, we use the same array that we did in the example with the ng-repeat over the array of items.

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