[英]Sort an array of timestamps in JavaScript
I am developing an Angular web service for creating photo journeys and displaying them on a map using Leaflet. 我正在开发一个Angular Web服务,用于创建照相旅程并将其使用Leaflet显示在地图上。 When I upload the pictures, I get their coordinates from their EXIF data and their DateTimeOriginal from it which returns string like this:
当我上传图片时,我从他们的EXIF数据中获取它们的坐标,并从中获取它们的DateTimeOriginal ,它们返回如下字符串:
and then save them in array for a further connecting with paths on a map. 然后将它们保存在数组中,以进一步与地图上的路径连接。
I have issues with sorting this array by timestamps in order to connect the markers on the map properly: 为了正确连接地图上的标记,我在按时间戳排序此数组时遇到问题:
How can I sort by time-stamp? 如何按时间戳排序?
Seems that the dates are invalid. 日期似乎无效。 If it would be properly formatted like this ("2012/10/24 16:37:44") you might do this:
如果将其正确地格式化为这样的格式(“ 2012/10/24 16:37:44”),则可以执行以下操作:
const a = new Date("2012/10/24 16:37:44").getTime();
For example, you would map over items in this array 例如,您可以映射此数组中的项目
function sortNumber(a,b) {
return a - b;
}
items.map(item => new Date(item.timestamp).getTime()).sort(sortNumber);
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