Checkbox 选中复选框时启用选择字段

在forloop中，我有复选框和select字段。默认情况下，选择字段被禁用。每当用户选中复选框时，相应的选择字段将被启用

下面是我目前正在使用的代码

home.html

---

您可以向禁用的参数添加值：

disabled="enhancements[item.id].checked"

export class HomePage {

  extras: any;
  enhancements: any;

  constructor(public navCtrl: NavController, public http: Http) {
    this.http.get('https://www.example.com/hotels/11/').map(res => res.json()).subscribe(response => {
        this.extras = response.Extras;
        this.enhancements = {};
        this.extras.forEach(item => {
          this.enhancements[item.id] = { checked: false, qty: 1 };
        })
    });
  }

  onChange(){
    var enhancements = this.enhancements;
    Object.keys(enhancements).forEach(function(key){
      if( enhancements[key].checked == true && enhancements[key].qty > 0 ){
        console.log( key + " | " + enhancements[key].checked );
      }
    });
  }

}

disabled="enhancements[item.id].checked"