· ng-controller: used to attach the controller class to the view. This helps to expose the action methods and the scope model from the controller to be accessible to view.
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This AngularJS course is built with the intent of exposing you to the best available resources on each Angular topic. Our desire is to present these topics richly, and from a variety of vantage points, in order to afford you a more complete perspective on them.
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Each controller has access to a $scope and some html. $scope is the most documented way of adding properties and methods to our view. Remember how we said each 'ng-controller' attribute specifies a scope of HTML to manage? Well, that scope has access to the same $scope as the Controller function.
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Of course, if you've used Angular 6, we'll point out common ideas (because there are many), but ng-book 7 stands on its own
Learning framework features one by one is helpful when you are just getting started, but the problem of that approach is that you might lack context to fully understand each separate feature if the example is not meaningful.
A core feature of Angular was Dependency Injection (DI). Through DI you can more easily follow a "divide and conquer" approach to software development. Complex problems can be conceptualized in terms of their roles and responsibilities. These can then be represented in objects which collaborate together to achieve the end goal. Large (or small) systems that are deconstructed in this way can be assembled at runtime through the use of a DI framework. Such systems are usually easier to test since the resulting design is more modular and allows for easier isolation of components. All this was possible in Angular of course. However, there were a few problems.
Filters allow you to format and transform data. They change the output of expressions inside the curly braces. AngularJS comes with a bunch of useful filters.
OK. That 8767 s the file. The file contains our controller code and serves as the brain of the application. Here 8767 s the source for the file and we 8767 ll go through it bit by bit:
· ng-repeat: used to instantiate the template for each item in the source collection received from the scope of the controller.
In this lesson we are going to login to Firebase, create our first real-time database and we are going to do our first query. We are going to see the Real-time Database in action as we are going to modify data in the database and see how the application responds.
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