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this.router.navigate(['action-selection'], { state: { example: 'bar' } });

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constructor(
    private http: HttpConfig,
    private commonService: CommonService,
    private notification: NzNotificationService,
    private ActivatedRoute: ActivatedRoute,
    private router: Router
  ) {
    this.searchParams = this.router.getCurrentNavigation().extras["state"]
      ? this.router.getCurrentNavigation().extras["state"]["example"]
      : ""
  }