WHY SHOULD WE USE AGULAR?
1. Angular helps improve the productivity of programmers.
Web development has significant changes in several years. With ECMAScript (ES) 2015- we’re familiar with the name ES6, with classes or arrow function. Angular 2+, an app with those new features making coding with Angular become clear and easier to learn.
2. Clear development structure
The importance of a Framework to developers is its app development structure, and Angular provides a clear structure based on three elements: class, added dependencies, and MVVM models (model-view-view/model).
Angular uses classes in ES6 with a bunch of attribution to build all the key structures, for instance, you want to build an Angular component - build a class and add other necessary attributions. Or you want to create an Angular module - build a class and add other necessary attributions. Angular provides a clear structure for building each of the features of your application.
Strong dependencies are used in the application when needed, and when we need to integrate any dependency, like HTTP or Router, we just need to add it inside the constructor of the class.
The MVVM model also helps Angular to gain an advantage in building client-side applications, there are usually three main things to consider: UI, interface control source code, and data model (data) for the interface. Angular and MVVM completely distinguish the above factors thanks to the MVVM model:
The view is defined in a template that contains the HTML for a certain component. A template can be the entire Layout or any pieces of that Layout.
Models are defined as attributions of the component class. It can be understood as data, based on that for the View to use for execution.
The view/model is the class that manages both the view as well as the model. This is the code that will handle the data retrieval and also execute UIs on the view.
With the adoption of the advantages of the above components, Angular makes application development easier and more efficient.
3. Extensive binding
There are a lot of Web applications that work with data. The app will retrieve data from the server and display that data to the user in the view, using the template. And user interactions are made to change data, recorded by the view, and saved on the server. Data Binding in Angular makes this process very easy. Simply binding the HTML element in the template with the attributes in the class and the data will automatically appear on the screen. For user interactions that require data changes, Angular uses a two-way binding method. Any changes to the data coming from the view will automatically update the "model" property within the class.
Also, Angular supports property binding - allowing us to control the DOM by binding the HTML attribution to attribution of class property, data will automatically appear inside the view. For example, we bind the hidden property to an IMG tag with the hideImg attribution inside the class. When the hideImg attribution receives the true column value, IMG will be automatically hidden, and vice versa when hideImg accepts the false value, the IMG tag will automatically display to the user.
Finally, Angular supports event binding, which means we can handle any event from the view side, like an HTML event. We are going to force the event to a method inside the class. Every time an event occurs, the corresponding method will be executed.
Extensive binding makes the process of displaying data, controlling the DOM, and executing events smooth and easy.
4. Full support for navigation features
Most Web applications not only have a single view or page but will provide many different views corresponding to the main functions. For example, a website with about pages, content pages, details pages, login pages, registration, etc. We will need to display the right view at the right time. That is the purpose of routing. And Angular provides full functionality for this, we define the routes for each page view of the application. And we will fire up the route based on user interaction. We can pass more data to the routes, help the view to display content dynamically, we can protect the route so that the user can only access it after logging in or have a right to access, can block the user immediately leaves a page when operations are unfinished until they confirm leaving or saving the usage, etc. Angular also supports child-route for workflow. direction within a route. Navigating between views within an Angular application is flexible and powerful.
5. Angular helps to minimize the size and maximize the performance of the application
Size and performance have a close connection when we work on the Web. A smaller component will improve the boot performance - reducing the download time as well as compile-time on the browse. Reducing the component size and improving the performance is an advantage and the aim that Angular wants to bring for developers.
Reducing the size can be done by many methods. Firstly, we can minimize the size of each component to the minimum possible. Next, the components will be arranged inside the Angular Module in a way that the logic groups related to each other will be downloaded together. And the third step, lazy loading inside the routes will only download the modules needed for displaying the necessary content to the user, and will never download unnecessary content.
We have a compiler named AOT, which will run once during the app build. The browser then downloads the compiled version of the application and renders the application to the user immediately without having to compile it for the first time in the browser. Besides, you won't need to download the Angular compiler, which significantly reduces the size of the downloaded application.
6. Document and community
The document for Angular 2+ - angular.io - is very clear and detailed, including the basic introductory that helps you get acquainted quickly with Angular, a detailed introduction, from basic to advanced Angular APIs, as well as a Tutorial Basic built by the Angular team, provides you with a quick grasp of the basic properties of the Framework.
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