关于前台日期转换和比较大小以及今天前三天日期_前端如何实现三天的时间转换-优快云博客

本文介绍了一种使用JavaScript进行日期格式化的实用方法，并演示了如何获取当前日期的时间信息，包括年、月、日、小时和分钟等。此外，还展示了如何计算指定日期前后的日期，如获取三天前的日期。

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var meetingDate = new Date();
      $scope.meetingYear = meetingDate.getFullYear();
      $scope.meetingMonth = meetingDate.getMonth() + 1;
      $scope.meetingDay = meetingDate.getDate();
      $scope.meetingHour = meetingDate.getHours();
      $scope.meetingMinutes = meetingDate.getMinutes();
      $scope.dateStr = meetingDate.getFullYear() + "-" + ((meetingDate.getMonth() + 1) < 10 ? "0" : "") + (meetingDate.getMonth() + 1) + "-" + (meetingDate.getDate() < 10 ? "0" : "") + meetingDate.getDate();

function formatDate(date) {
         var year = date.getFullYear();
         var month = date.getMonth() + 1;
         var day = date.getDate();
         var hour = date.getHours();
         var minute = date.getMinutes();
         var second = date.getSeconds();
         return year + "-" + formatTen(month) + "-" + formatTen(day);

}

$scope.siteNewEndDate = siteEndDate.getFullYear() + "-" + ((siteEndDate.getMonth() + 1) < 10 ? "0" : "") + (siteEndDate.getMonth() + 1) + "-" + (siteEndDate.getDate() < 10 ? "0" : "") + siteEndDate.getDate() +
            " " + ((siteEndDate.getHours() + 1) < 10 ? "0" : "") + (siteEndDate.getHours()) + ":" + ((siteEndDate.getMinutes() + 1) < 10 ? "0" : "") + (siteEndDate.getMinutes());
         var sDate = new Date($scope.siteStartDate.replace(/\-/g, '\/'));
         var eDate = new Date($scope.siteNewEndDate.replace(/\-/g, '\/'));

前三天

var threeAgo = sitebeginDate.getTime()-3*24*60*60*1000;
$scope.beginDate = new Date(threeAgo).getFullYear() + "-" + ((new Date(threeAgo).getMonth() + 1) < 10 ? "0" : "") + (new Date(threeAgo).getMonth() + 1) + "-" + (new Date(threeAgo).getDate() < 10 ? "0" : "") + new Date(threeAgo).getDate();