How to refresh a page manually in Angular 2

How can I have a page in Angular reload only once when a user visits it?

This is my attempt:

In the homepage component, I added the following code:

export class HomepageComponent implements OnInit {

  constructor() { }

  ngOnInit() {
    location.reload();
  }

}

However, the page keeps refreshing continuously. How can I ensure that it reloads only once on initialization?

Answer №1

Here is a straightforward approach that can be used:

ngOnInit() {
  if (!localStorage.getItem('bar')) { 
    localStorage.setItem('bar', 'no refresh') 
    location.reload() 
  } else {
    localStorage.removeItem('bar') 
  }
}

Answer №2

Upon the initial page load, this script will examine the query in the URL and trigger a reload immediately after. This reloading action is only activated once, specifically during the initial loading of the page.

ngOnInit(){
      let win = (window as any);
      if(win.location.search !== '?loaded' ) {
          win.location.search = '?loaded';
          win.location.reload();
      }
  }

Answer №3

In my Angular 5 project, I have implemented a solution to handle the query string parameter upon loading the page. If the parameter exists, I prevent the page from reloading because Amcharts fails to display on the initial load and only shows up after a reload.

ngOnInit() {
    var urlParams = [];
    window.location.search.replace("?", "").split("&").forEach(function (e, i) {
        var p = e.split("=");
        urlParams[p[0]] = p[1];
    });

    // Now we have access to all parameters
    console.log(urlParams["loaded"]);

    if(urlParams["loaded"]) {}else{

        let win = (window as any);
        win.location.search = '?loaded=1';
        //win.location.reload('?loaded=1');
    }

}

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