按日期排序JSON [英] sort JSON by date

问题描述

我知道这必须相对简单，但我有一个JSON数据集，我希望按日期排序。到目前为止，我每次都遇到问题。
现在我将日期存储为 this.lastUpdated 。
如果有帮助我可以访问jquery，但我知道.sort（）是本机JS。
提前致谢。

I know this must be relatively simple, but I have a dataset of JSON that I would like to sort by date. So far, I've run into problems at every turn. Right now I have the date stored as this.lastUpdated. I have access to jquery if that helps, but I realize the .sort() is native JS. Thanks in advance.

推荐答案

假设您有一个javascript对象数组，只需使用自定义排序功能：

Assuming that you have an array of javascript objects, just use a custom sort function:

function custom_sort(a, b) {
    return new Date(a.lastUpdated).getTime() - new Date(b.lastUpdated).getTime();
}
var your_array = [
    {lastUpdated: "2010/01/01"},
    {lastUpdated: "2009/01/01"},
    {lastUpdated: "2010/07/01"}
];

your_array.sort(custom_sort);

Array sort 方法使用数组排序一个回调函数，它传递数组中的元素对。

The Array sort method sorts an array using a callback function that is passed pairs of elements in the array.

• 如果返回值为负，则第一个参数（ a 在这种情况下），将在排序数组中的第二个参数（ b ）之前。


• 如果返回值为零，则它们相对于彼此的位置保持不变。


• 如果返回值为正， b 在排序后的 a 之前数组。

• If the return value is negative, the first argument (a in this case), will precede the second argument (b) in the sorted array.
• If the returned value is zero, their position with respect to each other remains unchanged.
• If the returned value is positive, b precedes a in the sorted array.

您可以在 sort 方法上阅读更多信息此处。

You can read more on the sort method here.

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