Javascript 如何从jquery中的这个日期减去一周？
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how do I subtract one week from this date in jquery?
提问by Infinity
this is my code
这是我的代码
var myDate = new Date();
todaysDate = ((myDate.getDate()) + '/' + (myDate.getMonth()) + '/' + (myDate.getFullYear()));
$('#txtEndDate').val(todaysDate);
I need txtEndDate's value = today's date - one week
我需要 txtEndDate 的值 = 今天的日期 - 一周
回答by dxh
You can modify a date using setDate. It automatically corrects for shifting to new months/years etc.
您可以使用 修改日期setDate。它会自动纠正转移到新的月份/年份等。
var oneWeekAgo = new Date();
oneWeekAgo.setDate(oneWeekAgo.getDate() - 7);
And then go ahead to render the date to a string in any matter you prefer.
然后继续以任何您喜欢的方式将日期呈现为字符串。
回答by Jean-Philippe Gire
I'd do something like
我会做类似的事情
var myDate = new Date();
var newDate = new Date(myDate.getTime() - (60*60*24*7*1000));
回答by Sandeep G B
var now = new Date();
now.setDate(now.getDate() - 7); // add -7 days to your date variable
alert(now);
回答by Hristo
Check out Date.js. Its really neat!
查看 Date.js。它真的很整洁！
Here are a couple of ways to do it using Date.js:
以下是使用 Date.js 的几种方法：
// today - 7 days
// toString() is just to print it to the console all pretty
Date.parse("t - 7 d").toString("MM-dd-yyyy"); // outputs "12-06-2011"
Date.today().addDays(-7).toString("MM-dd-yyyy"); // outputs "12-06-2011"
Date.today().addWeeks(-1).toString("MM-dd-yyyy"); // outputs "12-06-2011"
As an unrelated side note, do check out Moment.js as well... I think the 2 libraries compliment each other :)
作为一个不相关的旁注，也请查看 Moment.js ......我认为这两个库相互补充:)
