import { Component, OnInit } from '@angular/core' import { Router } from '@angular/router' import { getParameterByName } from '../shared/misc/utils' @Component({ selector: 'my-header', templateUrl: './header.component.html', styleUrls: [ './header.component.scss' ] }) export class HeaderComponent implements OnInit { searchValue = '' constructor (private router: Router) {} ngOnInit () { const searchQuery = getParameterByName('search', window.location.href) if (searchQuery) this.searchValue = searchQuery } doSearch () { if (!this.searchValue) return this.router.navigate([ '/videos', 'search' ], { queryParams: { search: this.searchValue } }) } }