react 如何将一个数组里对象的值替换成另一个？

Question

比如现在有一个数组[{id:1,name:a},{id:2,name:b},{id:3,name:c}] ==> [{id:a,name:a},{id:b,name:b},{id:c,name:c}]对象id的值全部替换为name的值

Answer 1

let arr = [{id: 1, name: 'a'}, {id:2, name:'b'}]
arr.forEach(item => {
  item.id = item.name
}
)
console.log(arr)