我想要一个javascript函数,它将start_date作为上周星期一日期,将end_date作为上周星期日。 例如,今天是03/09/2016,所以我想要 start_date = 02/29/2016 end_date = 03/06/2016
到目前为止,我已将代码视为
function GetLastWeekDate(){
start_date = new Date();
start_date.setHours(0,0,0,0);
end_date = new Date();
var date=null;
var curr = date ? new Date(date) : new Date();
var first = curr.getDate() - curr.getDay("monday"),
last = first + 6;
start_date.setDate( first );
end_date. setDate( last );
}
(function() {
var original = Date.prototype.getDay;
var daysOfWeek = {
sunday: 0,
monday: 1,
tuesday: 2,
wednesday: 3,
thursday: 4,
friday: 5,
saturday: 6,
};
Date.prototype.getDay = function(weekBegins) {
weekBegins = (weekBegins || "sunday").toLowerCase();
return (original.apply(this) + 7 - daysOfWeek[weekBegins]) % 7;
};
})();
但它给我的日期为
03/07/2016 and 03/13/2016
如何解决此问题以获取我想要的日期?
答案 0 :(得分:2)
如果您要处理大量日期,我强烈建议您使用moment.js库。
在这种情况下,日期将是:
var startDate = moment().subtract(1, 'week').startOf('week');
var endDate = moment().subtract(1, 'week').endOf('week');
在这里你可以看到它的实际效果:
document.addEventListener('DOMContentLoaded', function() {
document.getElementById("fromDate").textContent = moment().subtract(1, "week").startOf("week");
document.getElementById("toDate").textContent = moment().subtract(1, "week").endOf("week");
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.15.2/moment.min.js"></script>
<html>
<body>
<p>From : <span id="fromDate"></span></p>
<p>To : <span id="toDate"></span></p>
</body>
</html>
答案 1 :(得分:1)
如果你只想要普通的js解决方案w / out任何外部库。你可以试试这个。
var dateNow = new Date();
var firstDayOfTheWeek = (dateNow.getDate() - dateNow.getDay()) + 1; // Remove + 1 if sunday is first day of the week.
var lastDayOfTheWeek = firstDayOfTheWeek + 6;
var firstDayOfLastWeek = new Date(dateNow.setDate(firstDayOfTheWeek - 7));
var lastDayOfLastWeek = new Date(dateNow.setDate(lastDayOfTheWeek - 7));
在上面的解决方案中,firstDataOfLastWeek将是星期一的前一周,而lastDayOfLastWeek将是星期日的前一周。