js替换数组中的某个键值对

Question

var arr = [
    {
      "fdId": "1ech3enh02snwcw1q9fd0q2jv026k1hb",
      "actionType": "agree",
      "triggerTime": 48,
    },
    {
      "fdId": "1ecp2el9j35ow2dw34t42dd1klcdea1s",
      "actionType": "forward",
      "triggerTime": 27,
    }
  ]

生成一个新数组，把fdId替换成id
应该怎么转换

Answer 1

var arr = [
    {
      "fdId": "1ech3enh02snwcw1q9fd0q2jv026k1hb",
      "actionType": "agree",
      "triggerTime": 48,
    },
    {
      "fdId": "1ecp2el9j35ow2dw34t42dd1klcdea1s",
      "actionType": "forward",
      "triggerTime": 27,
    }
];
var newArr = [];

arr.forEach(({ fdId, ...rest }) => newArr.push({ id: fdId, ...rest }));

Answer 2

你这个不能成为替换了，应该是增加一项，删除一项

let resule = arr.map(item => {
    let obj = Object.assign({id: 'a'}, item)
    delete obj.fdId
    return obj
})

Answer 3

let newArr = [];
arr.forEach({actionType, trriggerTime, fdId: id} => {

newArr.push({
    actionType,trriggerTime,id
});

});
此时newArr就是你想要的那个数组了

Answer 4

let result = arr.reduce((obj, { fdId, ...rest }) => obj.push({ id: fdId, ...rest }) == false || obj, []);