Identifying Between Refresh And Close Browser Actions

Question

When we refresh the page (F5, or icon in browser), it will first trigger ONUNLOAD event. When we close the browser (X on right top icon),It will trigger ONUNLOAD event. Now

Answer 1

Its a working solution

export class BootstrapComponent implements OnInit {

  validNavigation = 0;

  constructor(
    private auth: AuthenticationService
  ) { }

  ngOnInit() {
    const self = this;
    self.registerDOMEvents();
  }

  registerDOMEvents() {
    const self = this;
    window.addEventListener('unload', () => {
      if (self.validNavigation === 0) {
        self.endSession();
      }
    });
    document.addEventListener('keydown', (e) => {
      const key = e.which || e.keyCode;
      if (key === 116) {
        self.validNavigation = 1;
      }
    });
  }

  endSession() {
    const self = this;
    self.auth.clearStorage();
  }
}