更改一个对象内的属性值与数组内另一个对象的属性值

Question

我有这个对象

{id: 4450, name: "product name", stock_status: "IN_STOCK", item: 32}

和这个对象数组

[{value: "31", label: "1"}, {value: "32", label: "2"}]

es6中是否有一种简单的方法将第一个对象的“ item”属性与数组中对象的“ value”属性进行匹配，并用“ label”的值返回第一个对象，从而替换item的值像这样：

{id: 4450, name: "product name", stock_status: "IN_STOCK", item: "2"}

Answer 1

如果您使用传播运算符，也许会有用

const obj = {id: 4450, name: "product name", stock_status: "IN_STOCK", item: 32}
const arr = [{value: "31", label: "1"}, {value: "32", label: "2"}]

// arr[i] 'i' is index of object in array
let newObj = { ...obj, item: (arr[1].label)}