js数组对象合并的问题

Question

原始数据

var oldData = [{
    time: '00:01'
},{
    time: '00:02'
},{
    time: '00:03'
},{
    time: '00:04'
}]

需要把对象的一对一对进行合并
最终如下

var ret = [{time1: '00:01', time2: '00:02'},{time1: '00:03', time2: '00:04'}]

感觉不难，但是，，，就是写不出来，还请帮助
对了，数据肯定是成对成对的，不用考虑会有单个的问题

Answer 1

console.log(convertData(oldData))

function convertData (list) {
  let res = []
  for(let a = 0; a < list.length; a+=2) {
    res.push({
      time1: list[a].time,
      time2: list[a + 1].time
    })
  }
  return res
}

Answer 2

提供个 Reduce 解法：

oldData.reduce((acc, cur, idx) => { 
    if (idx === 0) { 
        acc = []; 
    }
    
    if (idx % 2 === 0) {
        acc.push({ time1: cur.time });
    } else {
        acc[acc.length - 1].time2 = cur.time;
    }
    
    return acc;
}, 0);

Answer 3

var oldData = [{
    time: '00:01'
},{
    time: '00:02'
},{
    time: '00:03'
},{
    time: '00:04'
},{
    time: '00:01'
},{
    time: '00:02'
},{
    time: '00:03'
},{
    time: '00:04'
}]

oldData.reduce((result, item, i)=>{
    if(i%2==0) return result;
    const newItem = {
        time1: oldData[i-1].time,
        time2: item.time
    };
    result.push(newItem);
    return result;
},[])