如何在现有的formArray上添加新的行？角度

import { Component } from '@angular/core';
import { FormGroup, FormControl, FormArray } from '@angular/forms';

@Component({
  selector: 'app-my-form',
  template: `
    <form [formGroup]="myForm">
      <div formArrayName="myFormArray">
        <div *ngFor="let row of myFormArray.controls; let i = index" [formGroupName]="i">
          <input formControlName="name" placeholder="Name">
        </div>
      </div>
      <button (click)="addNewRow()">Add Row</button>
    </form>
  `,
})
export class MyFormComponent {
  myForm: FormGroup;

  constructor() {
    this.myForm = new FormGroup({
      myFormArray: new FormArray([]),
    });
  }

  get myFormArray() {
    return this.myForm.get('myFormArray') as FormArray;
  }

  addNewRow() {
    const newRowFormGroup = new FormGroup({
      name: new FormControl(''),
    });

    this.myFormArray.push(newRowFormGroup);
  }
}