javascript中不同对象数组的一个排序函数

Question

I want to sort both the array with one comman sort function that can sort by date.

videos = [
    {publishDate: new Date("2016-07-20T07:45:00Z").toISOString()}, 
    {publishDate: new Date("2016-07-27T07:45:00Z").toISOString()}, 
    {publishDate: new Date("2016-07-23T07:45:00Z").toISOString()}
];

persons = [
    {dob: new Date("2016-07-10T07:45:00Z").toISOString()}, 
    {dob: new Date("2016-07-08T07:45:00Z").toISOString()}, 
    {dob: new Date("2016-07-11T07:45:00Z").toISOString()}
];

I can sort with this function byDate()

function byDate(v1, v2) {
    return v1.p > v2.p ? 1 : -1;
}

videos.sort(byDate);

but when I call this function with persons[] array, this gives error because v1.p is not present in persons[] array.

So, I need one sort function that can sort different arrays of objects.

Answer 1

You need to specify the key, you like to sort with. This solution takes the key and returns a function for sorting.

 function byDate(key) { return function (a, b) { return a[key].localeCompare(b[key]); }; } var videos = [{ publishDate: new Date("2016-07-20T07:45:00Z").toISOString() }, { publishDate: new Date("2016-07-27T07:45:00Z").toISOString() }, { publishDate: new Date("2016-07-23T07:45:00Z").toISOString() }], persons = [{ dob: new Date("2016-07-10T07:45:00Z").toISOString() }, { dob: new Date("2016-07-08T07:45:00Z").toISOString() }, { dob: new Date("2016-07-11T07:45:00Z").toISOString() }]; console.log(videos.sort(byDate('publishDate'))); console.log(persons.sort(byDate('dob'))); 

 .as-console-wrapper { max-height: 100% !important; top: 0; } 

Answer 2

simply try,

  videos = [ {publishDate: new Date("2016-07-20T07:45:00Z").toISOString()}, {publishDate: new Date("2016-07-27T07:45:00Z").toISOString()}, {publishDate: new Date("2016-07-23T07:45:00Z").toISOString()} ]; persons = [ {dob: new Date("2016-07-10T07:45:00Z").toISOString()}, {dob: new Date("2016-07-08T07:45:00Z").toISOString()}, {dob: new Date("2016-07-11T07:45:00Z").toISOString()} ]; function byDate(v1, v2) { return Object.values(v1) > Object.values(v2) ? 1 : -1; } console.log(videos.sort(byDate)); console.log(persons.sort(byDate));