如何在另一个FormArray中访问FormArray

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

@Component({
  selector: 'app-example',
  template: `
    <form [formGroup]="myForm">
      <div formArrayName="outerFormArray">
        <div *ngFor="let innerFormArray of outerFormArray.controls; let i = index">
          <div [formGroupName]="i">
            <input formControlName="innerControl" placeholder="Inner Control">
          </div>
        </div>
      </div>
    </form>
  `,
})
export class ExampleComponent {
  myForm: FormGroup;

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

  constructor() {
    this.myForm = new FormGroup({
      outerFormArray: new FormArray([
        new FormGroup({
          innerControl: new FormControl('Value 1'),
        }),
        new FormGroup({
          innerControl: new FormControl('Value 2'),
        }),
      ]),
    });
  }
}