Angular 9将表单重置为原始状态，其中一个字段是一个数组

import { FormBuilder, FormGroup } from '@angular/forms';

export class YourComponent {
  form: FormGroup;

  constructor(private fb: FormBuilder) {
    this.form = this.fb.group({
      arrayField: [[]] // 定义数组字段并初始化为空数组
    });
  }
}

<form [formGroup]="form">
  <div formArrayName="arrayField">
    <div *ngFor="let item of form.get('arrayField').controls; let i = index">
      <input type="text" [formControlName]="i">
    </div>
  </div>
</form>
<button (click)="resetForm()">重置</button>

resetForm() {
  this.form.reset(); // 重置整个表单
  // 或者只重置数组字段
  // this.form.get('arrayField').reset([]);
}