对象数组按照对象的某个属性排序

源数据

  let originalArr = [
    {rank:1,name:'Matt'},
    {rank:3,name:'Andy'},
    {rank:5,name:'Ted'},
    {rank:2,name:'Jim'},
    {rank:4,name:'Peter'},
  ];

按照rank属性排序（升序排序）

  let res = [];
  originalArr.forEach((item,index)=>{
    res[item.rank - 1] = item;
  });
  console.log('源数据',originalArr);
  console.log('升序排序后',res);

按照rank属性排序（降序排序–先升序，后reverse）

  let res = [];
  originalArr.forEach((item,index)=>{
    res[item.rank - 1] = item;
  });
  console.log('源数据',originalArr);
  console.log('降序排序后',res.reverse());