js数组中的元素为日期字符串，怎么去重并排序呢?求解

Question

var array = ['2018-03-05','2013-06-12','2019-03-12','2018-03-05','2014-02-22'];
想对上个数组去重并排序

Answer 1

var arr = ['2018-03-05','2013-06-12','2019-03-12','2018-03-05','2014-02-22'];
var arr1 = [...new Set(arr)]
var sortedarr = arr1.sort((a,b)=>{
                return a>b
             }) 
console.log(sortedarr)


没运行过，应该没有问题

Answer 2

var times = {}
array.forEach(function(item) {
    var time = new Date(item).getTime()
    if (!times[time]) {
        times[time] = true
    }

})

var arrTimes = Object.keys(times).sort(function(a, b){return a - b })

然后你在重新格式化就好了

Answer 3