“Angular JS” You must have heard this term quite a lot when it comes to web application development, But if you are a beginner Who’ve heard this time the first time, don’t worry! We are here for you.
AngularJS is like a magic tool for making cool websites. It helps in building dynamic web applications, which means websites that can do more than just show text and pictures.
AngularJS is generally used with basic HTML to make your website smart and interactive. It’s like adding new superpowers to HTML, so you can easily create fancy features like showing live updates, validating forms, and handling events.
Angular JS – Key Takeaways
- Understanding what Angular JS is.
- Understanding about Advantages and capabilities of Angular JS
- Understanding about different libraries of Angular JS and their uses.
Why to Use Angular JS?
Angular JS is widely used by developers for creating dynamic websites and web applications as it provides a variety of interesting tools and features, some important advantages of Angular JS are explained below for your better understanding.
- Easy to Learn: Angular JS uses regular HTML and adds extra power to it, making it easier for beginners to learn and understand.
- Less Code: With Angular JS, you can do more things with less code. This means you spend less time typing and fixing code which helps in making development faster.
- Interactive Websites: Angular JS lets you create websites that can change and interact with users in real time. This makes websites more engaging and user-friendly to use.
- Organized Code: Angular JS helps you organize your code neatly which makes it easier for you to read and work with your code.
- Faster Development: As we have already discussed that Angular JS handles a lot of complex tasks automatically so you can build dynamic websites faster and more efficiently.
- Reusable Components: Angular JS also allows you to create reusable codes for your website which helps in saving time and effort while coding.
- Good for Web Apps: If you want to build web applications that feel like desktop apps, Angular JS is a great choice. It helps in creating smooth and responsive web apps.
Angular JS – A Complete Client-Side Solution
Angular JS is a powerful framework for building web applications on the client side. It handles all of the DOM and AJAX code that you will write.
Angular JS simplifies tasks like connecting data to the interface, creating templates, checking form inputs, managing navigation, and handling dependencies. With its clear structure and testing support, Angular JS is great for creating interactive and organized CRUD (Create, Read, Update, Delete) applications.
It provides everything you need to build a CRUD app in a cohesive set: Data-binding, basic templating directives, form validation, routing, deep-linking, reusable components, and dependency injection.
Let us discuss each term in detail to get a better clarity:
- Data-binding: This feature allows you to automatically synchronize the data between the model and the view. When the data in the model changes, the view updates accordingly, and vice versa.
- Templating Directives: Angular JS provides a set of directives that allow you to create dynamic templates easily. Directives like ‘ng-repeat’, ‘ng-if’, and ‘ng-show/ng-hide’ are commonly used for this purpose.
- Form Validation: Angular JS comes with built-in form validation capabilities, allowing you to validate user input on forms easily. It provides directives such as ‘ng-model’, ‘ng-required’, ‘ng-min length’, etc., for form validation.
- Routing and Deep-Linking: Angular JS includes a routing module that allows you to create single-page applications with multiple views. It also supports deep linking that enables bookmarking and sharing of specific application states.
- Reusable Components: Angular JS promotes the creation of reusable components through directives and controllers. You can encapsulate functionality into components and use them across your application.
- Dependency Injection: Angular JS has a built-in dependency injection mechanism that helps in managing dependencies between different components of your application. This promotes simplified and testable code.
- Testability story: Angular JS shows the importance of testability by providing support for unit testing, end-to-end testing, mocks, and test harnesses. This ensures that your code remains strong and maintainable.
- Seed application with directory layout: Angular JS provides a seed application with a predefined directory structure, serving as a starting point for your projects. This helps in organizing your code effectively from the beginning.
Angular JS’s Sweet Spot
Angular JS helps in simplifying application development by providing a higher level of abstraction to the developer. But as you all know, that abstraction comes at a cost of flexibility. In other words, we can say that Angular JS is not always the best fit for every application.
Angular JS was built with the idea of creating CRUD applications. Now, understanding the concept of what angular JS is good at, will help you to understand which application is not fit for Angular JS.
Like Games and GUI editors come up with an intensive and tricky DOM manipulation. These kinds of apps are totally different from CRUD apps, and this is why Angular JS may not be the best fit for them. In these cases, it is better to use a library with a lower level of abstraction, such as jQuery.
Libraries in Angular JS
There are several libraries that are used in Angular JS to extend the capabilities of the language by providing various features and advantages. Below are some popular libraries of Angular JS along with their uses for your better understanding:
| Library | Their use in Angular JS |
| ngRoute | Angular JS module used for Client-side routing. |
| ngResource | This library is used for interacting with restful API. |
| ngAnimate | This library is used to add animation capablities to Angular JS apps. |
| ngCookies | It is used to hadle cookies in Angular JS application. |
| ngMock | This library is used for providing mock implementation for unit testing. |
| AngularUI | This library contains a collection of UI components and other utilities. |
| Bootstrap | It is used for front nd framework and responsive design. |
| lodash | It is a utility library in Angular JS, used for simplifying JavaScript operations. |
| moment.js | This library is used for parsing, validating and manuplating dates. |
| chart.js | This Angular JS library is used for creating interactive charts. |
| ngStorage | It simplifies working with local storage in Angular JS apps. |
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Angular JS FAQs
What is Angular JS?
Angular JS is a JavaScript framework developed by Google for building dynamic web applications. It provides various tools and features that make it easier to create interactive user interfaces.
What are the key features of AngularJS?
Key features of Angular JS include its ability for two-way data binding, Model-View-Controller architecture, dependency injection, directives for extending HTML, routing, form validation, and testing support.
What is two-way data binding in Angular JS?
Two-way data binding in Angular JS means that changes to the data are automatically reflected in the view (UI), and vice versa. This synchronization simplifies keeping the UI and data in sync.
What is dependency injection in Angular JS?
Dependency injection is a design pattern in Angular JS where components (services, controllers, etc.) are dependent on other components that are provided to them externally. Angular JS's injector subsystem is responsible for managing these dependencies which promotes modularity and testability.
