Why is Angular such a powerful framework?
Have you ever heard of Angular ? This platform is aimed at building application interfaces, using HTML, CSS and, mainly, JavaScript. Its focus is on open-source, front-end web applications based on TypeScript.
TypeScript, in turn, is a language that allows you to write your JavaScript code, doing object-oriented programming without losing its advantages. To learn more about the elements and functionalities of this development modality, continue reading the article we prepared for you!
Angular Elements
When compiling TypeScript code, JavaScript code is generated, and this code is what will be executed in the browser. Among the main basic elements that make this construction interesting, we can highlight:
- Templates ;
- Components;
- Routing;
- Directives;
- Modules;
- Services;
- Dependency injection,
- Infrastructure tools.
Another point worth highlighting is the fact that the platform is open source and has a large community, with several organizations using the system and with plenty of reference material available for those who want to improve and learn more.
The Angular framework , therefore, helps in creating Single-Page Applications , with an above-average level of productivity and quality.
What is the function of Angular?
Angular optimizes the development of front-end web page applications. HTML allows the creation of static pages, however, for a web application, more than that is needed.
Angular adapts and extends traditional HTML for an optimized experience, with dynamic content and direct data binding, known as two-way data-binding , which opens up the possibility for automatic synchronization of models and views.
The Angular platform provides resources for the development of Single Page Applications (SPA). In other words, a single web page, with the aim of providing a user experience similar to that of a desktop application, where the code is loaded onto the single page, dynamically.
Productivity also increases, allowing the developer to break the code into parts, using components, modules and other features. This structure makes the development environment more organized, and is called the Angular application diagram . Learn more about these features below:
Components
The concept of components is fundamental when we talk about front-end frameworks . Practically everything is based on them, which are responsible for allowing the creation of codes that can be reused and tested without the risk of collisions.
An Angular application is started by a main component, the AppComponent . From there, a hierarchy of other components connects to the page document object model (DOM).
Modules
Using Angular, an application is defined by a combination of modules. If we imagine modules as blocks that can be used to build things, in Angular, this action would translate into grouping, exporting and hiding components, directives, pipes and related services.
These modules are used to form an application and are called NgModules . Each application is made up of at least one category of this classification, which is the application’s root module .
- Imports : these are arrangements with other modules, necessary to use components declared within the application;
- Declarations : receives an arrangement of components, directives and pipes , which are part of the module;
- Exports : Defines the set of components and pipes , available to other modules,
- Providers : Makes the declaration of services, where, if a module is root , they will be available to the entire application.
Two-way data binding
This is a key aspect of the framework. The concept may be described as a bidirectional data relationship in which information enters the view or template and immediately passes to a property of the component class. The data in question is already presented in a DOM (Document Object Model) element within the component template.
The main purpose of two-way data binding is to automate data circulation, making the developer’s life easier by not requiring the creation of handlers to update the visualization.
This way, when a component’s value changes, the framework itself will update the page. Bidirectional data binding combines input and output into a single process.
Why learn Angular?
One of the biggest attractions of Angular is the practicality in developing and organizing files within the project. The codes are organized in a structure that is simple to understand and maintain, as the available features allow modularity and break the code into pieces.
The time saved is also a difference, because in Angular, you don’t need to use text editors and create extensive configuration codes within the application.
Another interesting point is that the page updates in real time. Making changes to the code and seeing the changes practically instantly is a positive point. Angular allows this, running all code changes at the same time they are updated on the page.
Remembering that there are Lazy-Load modules , recommended for large applications, due to the reduction in initialization time.
Angular Ivy
If you regularly follow developments in the development and innovation market, you may have already heard of Angular Ivy . Ivy is a new generation of compiler and renderer of framework platform components.
It is ideal for smaller and faster applications, making compilation more agile and intelligent. Angular applications can take a while (several seconds, sometimes) to compile. With Ivy, however, this is different.
This update works with the idea of localization . In other words, Ivy will compile only those components that have edits and are necessary. Following this logic, it will not be necessary to recompile the application every time. This way, day-to-day development becomes much easier.
Angular Ivy is recommended even for large applications. Before his, the larger the application, the more time it took. With the new update, this process takes the time corresponding to the size of the component being edited.