在JS数组上运行多种排序 [英] Running multiple sorts on JS array
本文介绍了在JS数组上运行多种排序的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有这个JS数组...
I have this JS Array ...
var arr = [{
"Event_code": "BW-087",
"Interest_area": "Information technology",
"Start_time": "9:00 AM",
"End_time": "3:00 PM",
"Session_type": "Experience",
"all_day_evt": true
}, {
"Event_code": "BW-161",
"Interest_area": "Media, Communication and creative arts",
"Start_time": "9:00 AM",
"End_time": "3:00 PM",
"Session_type": "Experience",
"all_day_evt": true
}, {
"Event_code": "BW-114",
"Interest_area": "Nursing and midwifery",
"Start_time": "9:00 AM",
"End_time": "3:00 PM",
"Session_type": "Tour",
"all_day_evt": true
}, {
"Event_code": "BW-033",
"Interest_area": "",
"Start_time": "9:00 AM",
"End_time": "3:00 PM",
"Session_type": "General information session",
"all_day_evt": true
}, {
"Event_code": "BW-115",
"Interest_area": "Food, Nutrition and dietetics",
"Start_time": "9:30 AM",
"End_time": "3:00 PM",
"Session_type": "Tour",
"all_day_evt": true
}, {
"Event_code": "BW-060",
"Interest_area": "Sport",
"Start_time": "9:30 AM",
"End_time": "3:00 PM",
"Session_type": "Tour",
"all_day_evt": true
}, {
"Event_code": "BW-081",
"Interest_area": "Information technology",
"Start_time": "9:00 AM",
"End_time": "9:30 AM",
"Session_type": "Course information session",
"all_day_evt": false
}, {
"Event_code": "BW-170",
"Interest_area": "",
"Start_time": "9:30 AM",
"End_time": "10:30 AM",
"Session_type": "General information session",
"all_day_evt": false,
"clash": "This clashes with another session"
}, {
"Event_code": "BW-032",
"Interest_area": "",
"Start_time": "9:30 AM",
"End_time": "10:00 AM",
"Session_type": "General information session",
"all_day_evt": false
}, {
"Event_code": "BW-096",
"Interest_area": "Media, Communication and creative arts",
"Start_time": "10:00 AM",
"End_time": "12:00 PM",
"Session_type": "Experience",
"all_day_evt": false
}, {
"Event_code": "BW-163",
"Interest_area": "Business",
"Start_time": "10:00 AM",
"End_time": "2:00 PM",
"Session_type": "Experience",
"all_day_evt": false,
"clash": "This clashes with another session"
}, {
"Event_code": "BW-048",
"Interest_area": "Media, Communication and creative arts",
"Start_time": "12:00 PM",
"End_time": "12:30 PM",
"Session_type": "Experience",
"all_day_evt": false
}, {
"Event_code": "BW-128",
"Interest_area": "Media, Communication and creative arts",
"Start_time": "12:00 PM",
"End_time": "12:30 PM",
"Session_type": "Tour",
"all_day_evt": false,
"clash": "This clashes with another session"
}, {
"Event_code": "BW-018",
"Interest_area": "Sciences",
"Start_time": "12:30 PM",
"End_time": "2:30 PM",
"Session_type": "Tour",
"all_day_evt": false,
"clash": "This clashes with another session"
}, {
"Event_code": "BW-013",
"Interest_area": "Sciences, Engineering, Information technology, Architecture and built environment, Environment",
"Start_time": "12:30 PM",
"End_time": "1:00 PM",
"Session_type": "Course information session",
"all_day_evt": false
}, {
"Event_code": "BW-039",
"Interest_area": "Media, Communication and creative arts",
"Start_time": "1:00 PM",
"End_time": "1:30 PM",
"Session_type": "Experience",
"all_day_evt": false
}, {
"Event_code": "BW-162",
"Interest_area": "Education and teaching",
"Start_time": "1:00 PM",
"End_time": "1:30 PM",
"Session_type": "Tour",
"all_day_evt": false,
"clash": "This clashes with another session"
}]
arr.sort((x,y) => y.all_day_evt- x.all_day_evt || ((new Date('1970/01/01 ' + x.Start_time)) - (new Date('1970/01/01 ' + y.Start_time))));
console.log(arr);
我正在对此数组执行3次操作...
I am looking to do 3 operations on this array ...
- 通过"all_day_evt"键将该数组分组.
- 在"true"子组和"false"子组中按"Start_time"对数组进行排序.
- 如果"start_time"上发生冲突"，则排序... ...冲突事件"出现在第二位.
我不确定如何实现第3个条件，非常感谢您的帮助.谢谢
I am not sure how to implement the 3rd condition, any help is very appreciated. Thanks
下面显示的示例输出-突出显示冲突事件应如何排列.它应该显示出来，以便带有"clash"键的事件排在第二位，而不是第一位.
Sample output shown below - highlighting how the clash events should line up. It should show up so that the event with "clash" key comes 2nd, not first.
例如，事件"BW-013"& "BW-018"在开始时间12:30 PM发生冲突.因此，首先出现"BW-013"，然后出现"BW-018".事件"BW-039"和"BW-162"也是如此，如下面的示例输出所示.
For example, events "BW-013" & "BW-018" are clashing at start_time of 12:30 PM. So, 'BW-013' comes first, and then 'BW-018' shows up. Same goes with events 'BW-039' and 'BW-162' as shown in example output below.
[{
"Event_code": "BW-013",
"Interest_area": "Sciences, Engineering, Information technology, Architecture and built environment, Environment",
"Start_time": "12:30 PM",
"End_time": "1:00 PM",
"Session_type": "Course information session",
"all_day_evt": false
},
{
"Event_code": "BW-018",
"Interest_area": "Sciences",
"Start_time": "12:30 PM",
"End_time": "2:30 PM",
"Session_type": "Tour",
"all_day_evt": false,
"clash": "This clashes with another session"
},
{
"Event_code": "BW-039",
"Interest_area": "Media, Communication and creative arts",
"Start_time": "1:00 PM",
"End_time": "1:30 PM",
"Session_type": "Experience",
"all_day_evt": false
}, {
"Event_code": "BW-162",
"Interest_area": "Education and teaching",
"Start_time": "1:00 PM",
"End_time": "1:30 PM",
"Session_type": "Tour",
"all_day_evt": false,
"clash": "This clashes with another session"
}
]
推荐答案
尝试以下操作.您需要添加clash
Try following. You need to add additional condition of clash
var arr = [{"Event_code":"BW-087","Interest_area":"Information technology","Start_time":"9:00 AM","End_time":"3:00 PM","Session_type":"Experience","all_day_evt":true},{"Event_code":"BW-161","Interest_area":"Media, Communication and creative arts","Start_time":"9:00 AM","End_time":"3:00 PM","Session_type":"Experience","all_day_evt":true},{"Event_code":"BW-114","Interest_area":"Nursing and midwifery","Start_time":"9:00 AM","End_time":"3:00 PM","Session_type":"Tour","all_day_evt":true},{"Event_code":"BW-033","Interest_area":"","Start_time":"9:00 AM","End_time":"3:00 PM","Session_type":"General information session","all_day_evt":true},{"Event_code":"BW-115","Interest_area":"Food, Nutrition and dietetics","Start_time":"9:30 AM","End_time":"3:00 PM","Session_type":"Tour","all_day_evt":true},{"Event_code":"BW-060","Interest_area":"Sport","Start_time":"9:30 AM","End_time":"3:00 PM","Session_type":"Tour","all_day_evt":true},{"Event_code":"BW-081","Interest_area":"Information technology","Start_time":"9:00 AM","End_time":"9:30 AM","Session_type":"Course information session","all_day_evt":false},{"Event_code":"BW-170","Interest_area":"","Start_time":"9:30 AM","End_time":"10:30 AM","Session_type":"General information session","all_day_evt":false,"clash":"This clashes with another session"},{"Event_code":"BW-032","Interest_area":"","Start_time":"9:30 AM","End_time":"10:00 AM","Session_type":"General information session","all_day_evt":false},{"Event_code":"BW-096","Interest_area":"Media, Communication and creative arts","Start_time":"10:00 AM","End_time":"12:00 PM","Session_type":"Experience","all_day_evt":false},{"Event_code":"BW-163","Interest_area":"Business","Start_time":"10:00 AM","End_time":"2:00 PM","Session_type":"Experience","all_day_evt":false,"clash":"This clashes with another session"},{"Event_code":"BW-048","Interest_area":"Media, Communication and creative arts","Start_time":"12:00 PM","End_time":"12:30 PM","Session_type":"Experience","all_day_evt":false},{"Event_code":"BW-128","Interest_area":"Media, Communication and creative arts","Start_time":"12:00 PM","End_time":"12:30 PM","Session_type":"Tour","all_day_evt":false,"clash":"This clashes with another session"},{"Event_code":"BW-018","Interest_area":"Sciences","Start_time":"12:30 PM","End_time":"2:30 PM","Session_type":"Tour","all_day_evt":false,"clash":"This clashes with another session"},{"Event_code":"BW-013","Interest_area":"Sciences, Engineering, Information technology, Architecture and built environment, Environment","Start_time":"12:30 PM","End_time":"1:00 PM","Session_type":"Course information session","all_day_evt":false},{"Event_code":"BW-039","Interest_area":"Media, Communication and creative arts","Start_time":"1:00 PM","End_time":"1:30 PM","Session_type":"Experience","all_day_evt":false},{"Event_code":"BW-162","Interest_area":"Education and teaching","Start_time":"1:00 PM","End_time":"1:30 PM","Session_type":"Tour","all_day_evt":false,"clash":"This clashes with another session"}];
arr.sort((x,y) => y.all_day_evt- x.all_day_evt || ((new Date('1970/01/01 ' + x.Start_time)) - (new Date('1970/01/01 ' + y.Start_time))) || Boolean(x.clash) - Boolean(y.clash));
console.log(arr);
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