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| Những khái niệm cơ bản trong Angular |
import { Component } from '@angular/core
2. Template: chứa cả logic, html
3. Directive: VD: *ngFor
4. Dependency
VD: constructor(service: BookService) {
this.courses = service.getCourse()
}
// This dependency (service: BookService) is type of books service
Dependency injection means injecting or providing the dependencies on class into its constructor
Register in providers in app.module.ts
