使用angular 7中的复选框检索所有性别值

<div>
  <label>
    <input type="checkbox" [(ngModel)]="selectedGenders['male']"> 男性
  </label>
</div>
<div>
  <label>
    <input type="checkbox" [(ngModel)]="selectedGenders['female']"> 女性
  </label>
</div>
<div>
  <label>
    <input type="checkbox" [(ngModel)]="selectedGenders['other']"> 其他
  </label>
</div>

selectedGenders: { [key: string]: boolean } = {
  'male': false,
  'female': false,
  'other': false
};

getSelectedGenders() {
  const selectedValues = Object.keys(this.selectedGenders).filter(key => this.selectedGenders[key]);
  return selectedValues;
}