按时间戳对数组进行排序的最快方法

发布于 2024-12-06 07:06:34 字数 966 浏览 1 评论 0原文

我如何按时间戳对该数组进行排序以及最快的方法是什么（数组有很多条目）？

我的数组

  myList = new Array();

  myList[0]               = {};
  myList[0]['title']      = 'I am really new';
  myList[0]['timestamp']  = 1317039046;
  myList[0]['date']       = '2011-09-26T12:10:46+00:00'; 

  myList[1]               = {};
  myList[1]['title']      = 'I am the oldest';
  myList[1]['timestamp']  = 1315656646;
  myList[1]['date']       = '2011-09-10T12:10:46+00:00';

  myList[2]               = {};
  myList[2]['title']      = 'I am older';
  myList[2]['timestamp']  = 1316866246;
  myList[2]['date']       = '2011-09-24T12:10:46+00:00';

  myList[3]               = {};
  myList[3]['title']      = 'I am old';
  myList[3]['timestamp']  = 1316952646;
  myList[3]['date']       = '2011-09-25T12:10:46+00:00';

示例
http://jsbin.com/ejagup/2/edit#preview

原文

how can i sort this array by timestamp and what is the fastest way (array has many many entries)?

my array

  myList = new Array();

  myList[0]               = {};
  myList[0]['title']      = 'I am really new';
  myList[0]['timestamp']  = 1317039046;
  myList[0]['date']       = '2011-09-26T12:10:46+00:00'; 

  myList[1]               = {};
  myList[1]['title']      = 'I am the oldest';
  myList[1]['timestamp']  = 1315656646;
  myList[1]['date']       = '2011-09-10T12:10:46+00:00';

  myList[2]               = {};
  myList[2]['title']      = 'I am older';
  myList[2]['timestamp']  = 1316866246;
  myList[2]['date']       = '2011-09-24T12:10:46+00:00';

  myList[3]               = {};
  myList[3]['title']      = 'I am old';
  myList[3]['timestamp']  = 1316952646;
  myList[3]['date']       = '2011-09-25T12:10:46+00:00';

example
http://jsbin.com/ejagup/2/edit#preview

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纸伞微斜 2024-12-13 07:06:34

myList.sort(function(x, y){
    return x.timestamp - y.timestamp;
})

myList 是一个 JavaScript 数组，支持 sort 方法。此方法接受一个函数作为参数，该函数根据返回值对数组进行排序。

目前，排序算法会将时间戳最小的元素放在前面。如果您想以另一个方向对数组进行排序，请交换 x.timestamp 和 y.timestamp 。

myList.sort(function(x, y){
    return x.timestamp - y.timestamp;
})

myList is a JavaScript array, which supports the sort method. This method accepts a function as argument, which sorts the array according to the returned value.

Currently, the sort algorithm will place the element with the lowest timestamp first. Swap x.timestamp and y.timestamp if you want to sort the array in the other direction.

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偏爱自由 2024-12-13 07:06:34

在 JavaScript 中按日期对数组进行排序的最简单方法，
下面是 JavaScript 中按日期对数组进行排序的方法的示例

 const fetchMessageData = () => {

        return (
            AllMessagesArr.sort((x, y) => {
                return new Date(x.timestamp) < new Date(y.timestamp) ? 1 : -1
            })
        ).reverse()
    }

         console.log("Display messages in Ascending order" ,fetchMessageData())

根据时间戳对数组进行排序

The easiest way to sort an array by date in JavaScript,
Here is an example of how this method of sorting an array by date in JavaScript looks

 const fetchMessageData = () => {

        return (
            AllMessagesArr.sort((x, y) => {
                return new Date(x.timestamp) < new Date(y.timestamp) ? 1 : -1
            })
        ).reverse()
    }

         console.log("Display messages in Ascending order" ,fetchMessageData())

Sort the array on basis of timestamp

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