将参数添加到ng-click中

Question

如何将cart.id添加到this.props.history.push('/job' + id')方法中并在该功能中使用它？

(click)="onRemove()"

Answer 1

只需将其作为参数传递

(click)="onRemove(cart.id)" 

onRemoveProduct(cartId: string) {

Answer 2

ngOnInit() {
  this.route.paramMap.pipe(
    tap((params: ParamMap) => this.cartId = params.get('id')),
    switchMap((params: ParamMap) => this.mhttp.deleteFromCart(params.get('id')))
  .subscribe((response: any) => {
    this.product = response;
  });
}

onRemove() {
  if (this.cartId) {
    console.log(this.cartId);
    console.log(this.product);
  } else {
    console.log('observable has not fired yet');
  }
}

然后只需在模板（cartId）或.ts文件（this.cartId）中的任何位置访问它-例如

这是一个合适的点击处理程序... (click)="onRemove()"