Things You Should Know About Angular2

Angular 2 is a typescript based open source javascript framework which is used to develop SPA (single page application).

Single page application

When you visit a standard website or web application, a page opens there called the home page. When you click on any link appearing on the home page, it loads and a new page opens.

Whereas SPA is such a website or web application in which if we visit then the home page is loaded first, after that we click on a link, then the page does not load, but the data of the same page is changed. In this way, we can visit the entire application and website on one page only. That’s why it is called single page application.

• The biggest example of this is GMAIL. Which is a single page application.
• In angular 2, we can build web applications and websites using HTML and JavaScript, and in this we can build applications as well as test them.
• Angular 2 has been developed by google and is maintained by it only.
• Angular 2 was launched in October 2014 at ng-conference Europe.
• This version of angular was not an update, rather the entire framework was rebuilt and other major changes were made.
• You do not need to learn angular 1 to learn angular 2, even if you do not know angular 1, you can learn angular 2.
• Angular 2 has a tag line, “one framework for mobile and desktop applications”. That is, in this we can build both mobile and desktop applications.

Features of angular 2

The following is a discussion of the new key features that were introduced in Angular 2.

In an earlier version of Angular, known as Angular or Angular 1.x, controllers were used in a project; in Angular 2, these have been replaced by components. Controllers are still one component of what we refer to as a Component in real life. The Component is made up and has a Controller and a View. Our HTML template serves as the View, while the actual JavaScript behavior is the Controller. In contrast to Angular 1.x, which required us to register a separate API for the controller or any other non-standard API, Angular 2.0 only requires us to create a straightforward class with a few of the annotations. Involving this methodology in Rakish 2 it assists with incorporating the venture applications into various modules. As a result, maintaining the project over time becomes straightforward. The following are additional Angular 2 components: -

• Native:- Through this we can build native mobile application through nativeScript, React native, and iconic framework.
• Desktop:- By this we can build mac, windows and linux applications using same type of angular methods.
• Speed:- The speed is very good in this. Because there is generation in it and there is no need to wait for the page to load.
• CLI:- CLI stands for Command Line Interface. Generates components, routes, services and pipes through CLI commands.
• TypeScript:- In this we can use typescript. Typescript has been created by Microsoft and it provides static typing, classes, and interface facilities.
• Components:- The earlier version of angular was based on controllers whereas angular 2 is based on components.
• Through components, we can make applications in many modules.

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