属性“productsSub”没有初始值设定项，并且未在 constructor.ts(2564) 中明确分配

Question

虽然我在 tsconfig.ts 文件中执行了 strict:false ，但我收到了这个错误

属性 'productsSub' 没有初始化器，也没有在构造函数中明确赋值。ts(2564)

import { Component, OnDestroy, OnInit } from '@angular/core';
import { Subscription } from 'rxjs';
import { Product } from "../../../models/product.model";
import { ProductsService } from 'src/app/services/products.service';



@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
})
export class HomeComponent implements OnInit, OnDestroy {

  products: Product[] = [];
  
  isLoading = false;
  private productsSub: Subscription;

  constructor(public productsService: ProductsService) { }

  ngOnInit(): void {
    this.isLoading = true;
    this.productsService.getProducts();
    this.productsSub = this.productsService.getProductsUpdateListener()
    .subscribe((products: Product[]) => {
      this.isLoading = false;
      this.products = products;
    });
  }

  onDelete(productId: string){
    this.productsService.deleteProduct(productId);
  }

  ngOnDestroy() {
    this.productsSub.unsubscribe();
  }

}