从对象数组中删除键值

Question

假设我有这样的对象数组：

arr = [{time: 1, value: 2, word: 'fdfd'}, {time: 2, value: 3, word: 'dsadsadsa'}]

如何从每个对象中删除时间和单词属性？我的输出应该是这样的：

arr = [{value: 2}, {value: 3}]

Answer 1

你可以试试Array.prototype.map()和Destructuring assignment

let arr = [{time: 1, value: 2, word: 'fdfd'}, {time: 2, value: 3, word: 'dsadsadsa'}];
arr = arr.map(({value}) => ({value}));
console.log(arr);