import { Component, OnInit, ViewContainerRef } from '@angular/core';
import { Router } from '@angular/router';
import { Component, OnInit, ViewContainerRef } from '@angular/core';
import { Router } from '@angular/router';
private userService: UserService,
private videoService: VideoService,
viewContainerRef: ViewContainerRef
private userService: UserService,
private videoService: VideoService,
viewContainerRef: ViewContainerRef