如何使用Angular将日期从HTML5输入类型= " date“传递到WebAPI？

<form (ngSubmit)="onSubmit()">
  <input type="date" [(ngModel)]="selectedDate" name="selectedDate">
  <button type="submit">Submit</button>
</form>

import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-date-form',
  templateUrl: './date-form.component.html',
  styleUrls: ['./date-form.component.css']
})
export class DateFormComponent {
  selectedDate: string;

  constructor(private http: HttpClient) { }

  onSubmit() {
    // Convert selectedDate to string format
    const dateString = this.selectedDate.toISOString().split('T')[0];

    // Send HTTP request to WebAPI
    this.http.post('your-webapi-url', { date: dateString })
      .subscribe(response => {
        // Handle response from WebAPI
      });
  }
}