javascript获取上周的第一天和最后一天[重复]

我想用 javascript 获取上周的第一天（星期一）和最后一天（星期日）。我已经检查过其他主题，但它不起作用。我还需要处理前一周是否是两个不同的月份。

我正在使用此代码，但最后一个星期日是 06/03/2014 而不是 06/04/2014

var beforeOneWeek = new Date(new Date().getTime() - 60 * 60 * 24 * 7 * 1000)
  , day = beforeOneWeek.getDay()
  , diffToMonday = beforeOneWeek.getDate() - day + (day === 0 ? -6 : 1)
  , lastMonday = new Date(beforeOneWeek.setDate(diffToMonday))
  , lastSunday = new Date(beforeOneWeek.setDate(diffToMonday + 6));

$( "#dateDebut" ).val($.datepicker.formatDate('dd/mm/yy', lastMonday));
$( "#dateFin" ).val($.datepicker.formatDate('dd/mm/yy', lastSunday));

你必须克隆beforeOneWeek。您的代码中的其他所有内容看起来都很好

var beforeOneWeek = new Date(new Date().getTime() - 60 * 60 * 24 * 7 * 1000)
var beforeOneWeek2 = new Date(beforeOneWeek);
  day = beforeOneWeek.getDay()
  diffToMonday = beforeOneWeek.getDate() - day + (day === 0 ? -6 : 1)
  lastMonday = new Date(beforeOneWeek.setDate(diffToMonday))
  lastSunday = new Date(beforeOneWeek2.setDate(diffToMonday + 6));

$( "#dateDebut" ).val($.datepicker.formatDate('dd/mm/yy', lastMonday));
$( "#dateFin" ).val($.datepicker.formatDate('dd/mm/yy', lastSunday));