js数组里是对象，那么怎么把里面的对象排序一下呢？

Question

var aa=[{"time":Date.parse("2017/02/22 16:30"),"val":22},{"time":Date.parse("2017/02/21 16:30"),"val":11},{"time":Date.parse("2017/02/23 16:30"),"val":33},{"time":Date.parse("2017/02/24 16:30"),"val":44}]如上代码，在javascript里，我想把日期按21,22,23,24日排序，该用什么算法呢？谢谢

Answer 1

直接用sort排序就可以吧

var aa=[

  {"time":Date.parse("2017/02/22 16:30"),"val":22},

  {"time":Date.parse("2017/02/21 16:30"),"val":11},

  {"time":Date.parse("2017/02/23 16:30"),"val":33},

  {"time":Date.parse("2017/02/24 16:30"),"val":44}

]

console.log('排序前:');

console.log(aa);

aa.sort(function(i1,i2){

  return i1.time-i2.time;

});

console.log('排序后:');

console.log(aa);