有如下数组：
var arr = [
{
id: 1,
name: "a",
time: "2017-11-22T06:28:13.615Z"
},
{
id: 2,
name: "b",
time: "2017-11-22T06:30:13.615Z"
},
{
id: 3,
name: "c",
time: "2017-11-22T06:32:13.615Z"
}
]
根据数组中每个对象的id进行排序
arr.sort((a, b) => b.id - a.id);
等价于:
arr.sort(function(a,b){
return b.id - a.id;
});
根据数组中每个对象的time进行排序
arr.sort((a, b) => new Date(b.time) - new Date(a.time));
等价于:
arr.sort(function(a,b){
return new Date(b.time) - new Date(a.time);
});
