What does @ mean before Component in an Angular Typescript file?

Question

JavaScript

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})

Answer 1

This is a decorator that acts as an annotation that tells some information about the class described below. Referring to the answer above, here the decorator says that the class below is a component that has a selector greet, which will then be searched in the html template and substitute the results of the work of this component, its template and styles there. template contains html template. If you replace it with templateURL, then you can specify a link to the template in it, which will be substituted in the place where the selector will be called greet-<greet></greet>