js获取数组中的对象的某个属性

 bannerList = [
   {
     id:0,
     name:''
   }
   {
     id:1,
     name:''
   }
 ] //bannerList是对象数组
 for (var i in this.bannerList) {
          console.log(this.bannerList[i].id)  //0  1
      }