Angular

Contents:

• Angular Concepts
  • Component
  • Service
  • Observables
• Angular Components
  • Selector
  • Change Detection Strategy
  • View Projections
• Angular UI Components
  • PrimeNG
  • Form Control State
• Asynchronous Reactive Programming

Source Code and Backup

This is a note about the backup of Angular projects.

To only keep the source code for the angular project files, the node_modules folder can be removed as this is downloaded from the internet.

Build node_modules

To restore of such a folder without the node_modules folder:

• first do a npm install in the project directory. This will download the necessary modules files.

• Then do a ng serve to run the development server.

Templating

• [] The square bracket denotes data flowing from the component to the HTML.

• () The round bracket denotes an event from a user event to the component.

• * Structural Directive responsible for changing the layout of the HTML elements from the DOM. E.g. *ngIf