Angular JS Tutorial
AngularJS is a JavaScript-based open-source front-end framework developed by Google. It was one of the earliest and most popular JavaScript frameworks for building dynamic web applications. AngularJS is often referred to as "Angular 1" to distinguish it from the later versions of the framework, such as Angular 2 and beyond.
Here's a brief overview of AngularJS:
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MVC Architecture: AngularJS follows the Model-View-Controller (MVC) architectural pattern, which helps in organizing the codebase and separating concerns. The model represents data, the view handles the presentation, and the controller manages the interaction between the model and view.
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Two-way Data Binding: One of the key features of AngularJS is its two-way data binding. This means that changes made to the model are automatically reflected in the view, and vice versa. This simplifies the synchronization of data between the model and the view.
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Directives: Directives are special markers in the HTML that tell AngularJS to manipulate the DOM elements they are associated with. They enable the creation of custom behaviors, and some built-in directives include ng-model (for data binding), ng-repeat (for repeating elements), and ng-if (for conditional rendering).
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Dependency Injection: AngularJS features a powerful dependency injection system that helps manage the components and their dependencies. This makes the code more modular and testable.
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Controllers: Controllers are JavaScript functions that are responsible for handling the business logic for a specific part of the application. They manage the data and interact with the views.
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Services: Services are singletons that provide functionality across different parts of the application. They are used to encapsulate reusable functionality, such as data manipulation, communication with APIs, and more.
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Filters: Filters are used to format or manipulate data in templates. They allow you to change the way data is displayed without modifying the underlying model.
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Routing: While AngularJS does provide routing capabilities, they are not as sophisticated as in later versions of Angular. Routing enables building single-page applications where different views are loaded without a full page refresh.
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Testing: AngularJS was designed with testability in mind. It provides tools and features that make unit testing and integration testing easier.
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Community and Resources: AngularJS gained a large and active community, which resulted in numerous tutorials, blog posts, and documentation available online to help developers get started and solve problems.
However, it's important to note that AngularJS has been largely deprecated in favor of later versions of Angular (such as Angular 2, 4, 5, and so on), which are more modern and offer enhanced performance, better tools, and improved architecture. If you're starting a new project, it's recommended to use the latest version of Angular instead of AngularJS.
Angular JS Interview Questions with Explanation
Angular JS Interview Questions with Explanation
