假设我有一个包含几个对象的数组:

var array = [{id: 1, date: Mar 12 2012 10:00:00 AM}, {id: 2, date: Mar 8 2012 08:00:00 AM}];

如何按日期元素排序这个数组,从最接近当前日期和时间的日期下来?请记住,数组可能有许多对象,但为了简单起见,我使用2。

我会使用排序函数和自定义比较器吗?


当前回答

我能够实现排序使用以下行:

array.sort(function(a, b)
{
   if (a.DueDate > b.DueDate) return 1;
   if (a.DueDate < b.DueDate) return -1;
})

其他回答

在纠正JSON之后,这应该为你工作了:

var array = [{id: 1, date:'Mar 12 2012 10:00:00 AM'}, {id: 2, date:'Mar 8 2012 08:00:00 AM'}];


array.sort(function(a, b) {
    var c = new Date(a.date);
    var d = new Date(b.date);
    return c-d;
});
Adding absolute will give better results

var datesArray =[
      {"some":"data1","date": "2018-06-30T13:40:31.493Z"},
      {"some":"data2","date": "2018-07-04T13:40:31.493Z"},
      {"some":"data3","date": "2018-06-27T13:40:54.394Z"}
   ]

var sortedJsObjects = datesArray.sort(function(a,b){ 
    return Math.abs(new Date(a.date) - new Date(b.date)) 
});

你可以在下划线js中使用sortBy。

http://underscorejs.org/#sortBy

示例:

var log = [{date: '2016-01-16T05:23:38+00:00', other: 'sample'}, 
           {date: '2016-01-13T05:23:38+00:00',other: 'sample'}, 
           {date: '2016-01-15T11:23:38+00:00', other: 'sample'}];

console.log(_.sortBy(log, 'date'));

简单的一行解决方案为我排序日期:

sort((a, b) => (a < b ? 1 : -1))

谢谢上面那些精彩的回答。我想了一个有点复杂的答案。只是给那些想比较不同答案的人。

const data = [
    '2-2018', '1-2018',
    '3-2018', '4-2018',
    '1-2019', '2-2019',
    '3-2019', '4-2019',
    '1-2020', '3-2020',
    '4-2020', '1-2021'
]

let eachYearUniqueMonth = data.reduce((acc, elem) => {
    const uniqueDate = Number(elem.match(/(\d+)\-(\d+)/)[1])
    const uniqueYear = Number(elem.match(/(\d+)\-(\d+)/)[2])


    if (acc[uniqueYear] === undefined) {
        acc[uniqueYear] = []        
    } else{    
       if (acc[uniqueYear]  && !acc[uniqueYear].includes(uniqueDate)) {
          acc[uniqueYear].push(uniqueDate)
      }
    }

    return acc;
}, {})


let group = Object.keys(eachYearUniqueMonth).reduce((acc,uniqueYear)=>{
    eachYearUniqueMonth[uniqueYear].forEach(uniqueMonth=>{
    acc.push(`${uniqueYear}-${uniqueMonth}`)
  })
  
  return acc;
},[])

console.log(group);   //["2018-1", "2018-3", "2018-4", "2019-2", "2019-3", "2019-4", "2020-3", "2020-4"]