JavaScript - 在JSON字符串中对数组元素进行排序

Question

如何使用JavaScript对以下JSON字符串进行排序。

输入：

[{time:'1 hours ago'}, {time:'10 minutes ago'}, {time:'2 minutes ago'}]

输出：

[{time:'2 minutes ago'}, {time: '10 minutes ago'}, {time:'1 hours ago'}]

Answer 1

这是一个粗略的样本。

var getVal = function(timeStr){
    var arr = timeStr.split(" ");
    var factor = 1;
    switch(arr[1]){
        case "minutes":factor = 1;   break;
        case "hours"  :factor = 60;  break;
        case "days"   :factor = 1440;break;
    }
    return parseInt(arr[0]) * factor;
}

var tgt = [{time:'2 minutes ago'}, {time: '10 minutes ago'}, {time:'1 hours ago'}];

tgt.sort(function(a,b){
    return getVal(a.time) - getVal(b.time);
});

console.log(tgt);