对于下面的阵列对象的事结构:
Events : {
events : [
{
startDTG : {day: 0, month: 0, year: 0, time: "" },
endDTG : {day: 0, month: 0, year: 0, time: "" },
mode: ""
},
...
],
blah...,
blah...,
blah...
}
我在努力寻找一种更有效的方式基础上,events
键(日期 - 时间组)的startDTG
对象进行排序。目前我使用下面,但我觉得必须有一个更好的方式来做到这一点!
SortEvents: function() {
this.Events.events.sort(function(a, b){return a.startDTG.time - b.startDTG.time});
this.Events.events.sort(function(a, b){return a.startDTG.day - b.startDTG.day});
this.Events.events.sort(function(a, b){return a.startDTG.month - b.startDTG.month});
this.Events.events.sort(function(a, b){return a.startDTG.year - b.startDTG.year});
},
编辑1:愿望是通过Year > Month > Day > Time
进行排序
我在其中我在效率的需要它的名字放弃这一习俗DTG一个临界点。我可以张贴整个代码,如果提出要求,但可能没有,因为它是JS写了一个名为“Medialon的”专有控制系统内工作总感
编辑2:添加了快速制造JSON
下面的代码转储,以协助结构的可读性。忽略了一个事实,他们都是“字符串”这是多么的Medialon为stringifies持久
{
"events": [
{
"startDTG": {
"day": "8",
"month": "2",
"year": "2019",
"time": "06:35",
"dayName": "5"
},
"endDTG": {
"day": "9",
"month": "2",
"year": "2019",
"time": "08:35",
"dayName": "6"
},
"mode": "1"
},
{
"startDTG": {
"day": "27",
"month": "2",
"year": "2019",
"time": "17:35",
"dayName": "3"
},
"endDTG": {
"day": "28",
"month": "2",
"year": "2019",
"time": "06:35",
"dayName": "4"
},
"mode": "1"
},
{
"startDTG": {
"day": "1",
"month": "2",
"year": "2019",
"time": "14:35",
"dayName": "5"
},
"endDTG": {
"day": "2",
"month": "2",
"year": "2019",
"time": "12:35",
"dayName": "6"
},
"mode": "1"
}
],
我还是不太清楚你的数据结构,但这样的事情应该是接近:
const events = [
{name: 'a', startDTG: {year: 2019, month: 1, day: 4, time: '14:21:46'}, endDTG: ''},
{name: 'b', startDTG: {year: 2018, month: 10, day: 7, time: '12:13:59'}, endDTG: ''},
{name: 'c', startDTG: {year: 2019, month: 1, day: 4, time: '09:23:51'}, endDTG: ''},
{name: 'd', startDTG: {year: 2019, month: 1, day: 2, time: '15:02:36'}, endDTG: ''},
{name: 'e', startDTG: {year: 2017, month: 9, day: 17, time: '03:25:29'}, endDTG: ''},
{name: 'f', startDTG: {year: 2017, month: 9, day: 17, time: '03:25:28'}, endDTG: ''},
{name: 'g', startDTG: {year: 2018, month: 4, day: 14, time: '11:07:42'}, endDTG: ''},
]
events.sort((
{startDTG: {year: y1, month: m1, day: d1, time: t1}},
{startDTG: {year: y2, month: m2, day: d2, time: t2}}
) =>
// y1 - y2 || m1 - m2 || d1 - d2 || (t1 < t2 ? -1 : t1 > t2 ? 1 : 0)
y1 - y2 || m1 - m2 || d1 - d2 || t1.localeCompare(t2)
)
console.log(events)
另一种解决方案可以将数据映射到Date(),然后比较getTime()返回的毫秒。
let data = {
"events": [
{
"startDTG": {"day": "8", "month": "2", "year": "2019", "time": "6:35", "dayName": "5"},
"endDTG": {"day": "9", "month": "2", "year": "2019", "time": "6:35", "dayName": "6"},
"mode": "1"
},
{
"startDTG": {"day": "27", "month": "2", "year": "2019", "time": "6:35", "dayName": "3"},
"endDTG": {"day": "28", "month": "2", "year": "2019", "time": "6:35", "dayName": "4"},
"mode": "1"
},
{
"startDTG": {"day": "1", "month": "2", "year": "2019", "time": "6:35", "dayName": "5"},
"endDTG": {"day": "2", "month": "2", "year": "2019", "time": "6:35", "dayName": "6"},
"mode": "1"
}
]
};
const startDTGToStr = o => `${o.year}-${o.month}-${o.day} ${o.time}`
data.events.sort((a, b) =>
{
a = new Date(startDTGToStr(a.startDTG));
b = new Date(startDTGToStr(b.startDTG));
return a.getTime() - b.getTime();
});
console.log(data.events);