Javascript jQuery - 按时间戳对数组进行排序的最快方法
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jQuery - Fastest way to sort an array by timestamp
提问by Peter
how can i sort this array by timestamp and what is the fastest way (array has many many entries)?
我如何按时间戳对这个数组进行排序，最快的方法是什么（数组有很多条目）？
my array
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';
回答by Rob W
myList.sort(function(x, y){
return x.timestamp - y.timestamp;
})
myListis a JavaScript array, which supports the sortmethod. This method accepts a function as argument, which sorts the array according to the returned value.
myList是一个 JavaScript 数组，它支持该sort方法。该方法接受一个函数作为参数，它根据返回值对数组进行排序。
Currently, the sort algorithm will place the element with the lowest timestamp first. Swap x.timestampand y.timestampif you want to sort the array in the other direction.
目前，排序算法将首先放置具有最低时间戳的元素。交换x.timestamp，y.timestamp如果你想在另一个方向对数组进行排序。
