需求：改变数据结构
let originArr = [
{ "hourId": 0, "costRate": 0.001,...},{ "hourId": 1, "costRate": 0.001,...}]
let compareArr = [
console.log(merge(originArr, compareArr)) //
[
{ "hourId": 0, "costRate":{start:0.01,
compare: 0.2
},
...}, { "hourId": 1,"costRate":{
start:0.01,
compare: 0.2
},
...
}]merge = (originArr, compareArr) => { let keyArr = Object.keys(originArr[0]) let newArr = [] for (let k = 0; k < originArr.length; k++) { let obj = {} for (let i = 0; i < keyArr.length; i++) { if (keyArr[i] === 'hourId') { obj[keyArr[i]] = originArr[k][keyArr[i]] } else { obj[keyArr[i]] = { start: originArr[k][keyArr[i]], compare: compareArr[k][keyArr[i]], } } } newArr.push(obj) } return newArr }