AngularJS
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AngularJS is an MVC framework for building client-side web applications. It uses two-way data binding between models and views, dependency injection to decouple modules, and directives to extend HTML. Key features include routing for single-page applications, services for reusable logic, and tools for testing AJAX code. AngularJS provides standard directives, services, and routing capabilities to build complete applications in the browser.
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AngularJS
- 2. Maurice de Beijer The Problem Solver Microsoft Integration MVP Who am I? Freelance developer DevelopMentor instructor Twitter: @mauricedb Blog: http://msmvps.com/blogs/TheProblemSolver/ Web: http://www.TheProblemSolver.nl E-mail: [email protected]
- 3. What is AngularJS? Objectives Getting started Directives Routing Services
- 4. AngularJS is an MVC framework for browser based apps Open source and originally developed at Google The clean architecture has attracted a large following quickly What is AngularJS? Version 1.0 was released in June 2012 Currently at 1.2.0-rc-3 The goal is building CRUD style business applications Not as suitable for games etc Use declarative programming for UI and imperative programming for the logic The application is wired together in a declarative way Supports modern desktop and mobile browsers Internet Explorer version 8 and above
- 5. Model View Controller architecture A well known and proven architecture Declarative two way data binding Automatically synchronizes values between Model and View Dynamic templates Key features Makes it very easy to update the user interface Dependency injections Code dependencies are automatically injected where needed Extends HTML with directives Lots of powerful standard directives or create your own Build with testing in mind Makes it much easier to unit test different parts
- 8. Visual Studio 2012 Several ways to get IntelliSense Visual Studio 2013 Tooling Understands directives and provides IntelliSense WebStorm Including support for Live Edit Batarang Chrome plugin Karma Test Runner
- 9. Automatic bootstrapping Bootstrapping Add a reference to AngularJS Add the ngApp attribute Manual bootstrapping is also possible Gives you more control For example when using AMD/RequireJS
- 11. Model Model The business data Exposed to the view through the $scope Controller View
- 12. Model The user interface layer View Controller Data binds to the model Calls functions on the controller Use declarative directives for reusable code View
- 13. Model Controller Controller Glues the view and the model together Provides additional functionality Uses additional services for reusable logic View
- 14. Model Services View Services are reusable pieces of business logic Services Separation results in reuse and testability Controller Created as singleton objects Inject by AngularJS using dependency injection Services are created as part of a module One module can take a dependency on another module Modules are groupings of related functionality Also used to bootstrap the application
- 15. Model Controller $scope The glue between the Model and View Don’t use as the Model! View
- 16. Many general purpose services provided by AngularJS $http Used for XMLHttpRequest handling $location Standard Services Provide information about the current URL $q A promise/deferred module for asynchronous requests $routeProvider Configure routes in an SPA $log Logging service Many more
- 17. AngularJS uses dependency injection to decouple modules Dependency injection Dependencies are automatically injected by the framework Based on the parameter name JavaScript is often minified in production Need to provide AngularJS with some extra hints
- 18. Directives allow you to enhance HTML with new capabilities Start using HTML as a domain specific language AngularJS comes with a long list of standard directives Standard directives ngApp ngBind ngModel ngRepeat ngClick ngEnable/ngDisable ngHide/ngShow ngView …
- 19. Turn HTML into your Domain Specific Language Custom directives Use templates to embed complete blocks Can use either attributes, elements, CSS classes or comments Directives let you interact with the DOM The place for jQuery code
- 20. Used to create SPA style application The page can change without using the server The ngView is often used to render a template Routing HTML templates loaded when needed Can also be pre loaded as script with type="text/ng-template" The $routeProvider service is used to configure the route The $location service can be used to navigate Using an anchor tag is also possible The $routeParams service can be used to retrieve parameters Properties named in the route URL template
- 21. The basic service for doing all HTTP requests The building block for all AJAX requests Can be used as a function $http(config) $http service Provides a number of shortcut methods $http.post(url, config) $http.get(url, config) $http.put(url, config) $http.delete(url, config) Uses the promises API as the result Provided by the $q service
- 22. Creates a service for working with RESTful services Much easier than using the $http object $resource Standard functions are already preconfigured Only the common HTTP PUT is missing Requires a dependency on ngResource Located in angular-resource.js
- 23. The $httpBackend is the service that is responsible Unit testing AJAX code Use the XMLHttpRequest object There is a second version in the ngMock module Used for unit testing code that does HTTP requests Can be configured to fake HTTP requests Or verify that HTTP calls where made
- 24. AngularJS is a complete framework for client side applications Based on the standard MVC design pattern Summary Two way data binding makes it easy to build data entry forms Dependency injection makes it easy to separate modules Build with testing in mind
- 25. The code Check http://msmvps.com/blogs/theproblemsolver/