By Brad Green, Shyam Seshadri
Guided through engineers who labored on AngularJS at Google, you’ll stroll during the framework’s key gains, 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 internet app.
Dive deep into Angular’s construction blocks and learn the way they paintings together
Gain greatest flexibility via isolating common sense, info, 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 atmosphere design
Get code samples for universal difficulties you face in such a lot internet apps
Read or Download AngularJS: Up and Running: Enhanced Productivity with Structured Web Apps PDF
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Extra info for AngularJS: Up and Running: Enhanced Productivity with Structured Web Apps
With this example in place, let’s dig in and understand how AngularJS is working behind the scenes: 1. The HTML is loaded. This triggers requests for all the scripts that are a part of it. 2. After the entire document has been loaded, AngularJS kicks in and looks for the ng-app directive. 3. When it finds the ng-app directive, it looks for and loads the module that is specified and attaches it to the element. 4. AngularJS then traverses the children DOM elements of the root element with the ng-app and starts looking for directives and bind statements.
Explaining the Karma Config To use Karma, we need a configuration file that tells Karma how to operate. We will see how easy it is to generate this configuration file in the next section. But first, let’s take a look at the Karma configuration and the options that we will use for our unit tests in this chapter. LOG_INFO, // enable / disable watching file and executing tests // whenever any file changes autoWatch: true, // Start these browsers, currently available: // - Chrome // - ChromeCanary // - Firefox // - Opera // - Safari (only Mac) // - PhantomJS // - IE (only Windows) browsers: ['Chrome'], // Continuous Integration mode // if true, it captures browsers, runs tests, and exits singleRun: false }); }; Let’s take a look at each of the options in the preceding example, to see what effect they have on Karma: basePath The base path from which all files for testing and the tests themselves need to be loaded.
Think of it as a container for multiple unit tests. You would write a describe for a controller, for a service, and so on. You can also nest describes within a describe, in case you want a describe for a complex function inside a controller. beforeEach A beforeEach is similar to a setup function in the xUnit testing pattern. That is, the function you pass to beforeEach will be executed before each individual it block. In this case, the t = true; line will execute once before each of the it blocks in the 42 | Chapter 3: Unit Testing in AngularJS describe.
AngularJS: Up and Running: Enhanced Productivity with Structured Web Apps by Brad Green, Shyam Seshadri