SOURCE

/*获取时间差*/
function getDifferTime(targetDate){
  const nowDate=new Date();
  const differTime=new Date(nowDate.getTime()-targetDate.getTime());
  const differDays=parseInt(differTime/(1000*60*60*24));
  const differYear=parseInt(differDays/365);
  const differMonth=parseInt(differDays/30);
  const differHours=nowDate.getHours()-targetDate.getHours();
  const differMinutes=Math.abs(nowDate.getMinutes()-targetDate.getMinutes());
  const differAry=[{
     dateDes:`${differYear}年前`,
    dateVal:differYear
  },{
    dateDes:`${differMonth}月前`,
    dateVal:differMonth
  },{
    dateDes:`${differDays}日前`,
    dateVal:differDays
  },{
   dateDes: `${differHours>0?`${differHours}小时${differMinutes}分前`:`${differMinutes}分钟前`}`,
   dateVal:differHours>0?differHours:differMinutes
 }]; 
  
  return differAry.find((item)=>{
   return item.dateVal>0;
  })||'刚刚';
  
}

console.log(JSON.stringify(getDifferTime(new Date('2020/4/3 12:00'))));