Check out example codes for "angular set query params". It will help you in understanding the concepts better.

Code Example 1

//in your HTML code :
<a href="javascript:;" routerLink="/link/params">
  My link

// app-routing.module.ts:
//in your Routes array :
{path: '/link/:paramsName', component: MyComponent }

Code Example 2

constructor(private router: Router) { }

public myMethodChangingQueryParams() {
  const queryParams: Params = { myParam: 'myNewValue' };

      relativeTo: activatedRoute,
      queryParams: queryParams, 
      queryParamsHandling: 'merge', // remove to replace all query params by provided

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