javascript - React Redux reducer 中缺少数组

Question

我正在尝试检查我的内部数组ID是否与调度ID相同，表示例

{
 _id :1,
 name: sagar elias jacky
 Amenities :[{ id: 100, title : hi },{ id: 101, title : hallo } ]
}

检查调度 ID 退出或不使用 map ，

return { ...state, 
  items : {...state.items, 
  Amenities : { ...state.items.Amenities
 .map(x=> x._id === action.dispatchedID ?  {...x,deleting: true} :  x ) }}}

但它将返回非数组设施，例如

Amenities:
0: { id: 100, title : hi },
1: { id: 101, title : hallo }

我想要这个

Amenities:Array(2)
0: { id: 100, title : hi },
1: { id: 101, title : hallo }

Answer 1

当您在 {} 内展开数组时，它会创建一个以数组索引作为键的对象

const array = [{a:1}, {a:2}]
console.log({...array})

所以，改变

Amenities : { ...state.items.Amenities
 .map(x=> x._id === action.dispatchedID ?  {...x,deleting: true} :  x ) }

至:

Amenities : [ ...state.items.Amenities
 .map(x=> x._id === action.dispatchedID ?  {...x,deleting: true} :  x ) ]