Question

这就是我获取当前日期，dd-MMM-yyyy格式的方式。我该如何减去1周。

    var m_names = new Array("JAN", "FEB", "MAR",
            "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC");

    var d = new Date();
    var curr_date = d.getDate();
    var curr_month = d.getMonth();
    var curr_year = d.getFullYear();
    var current = curr_date + "-" + m_names[curr_month] + "-" + curr_year;

Answer 1

使用moment.js，给定

moment().calendar();

是

Today at 10:27 AM

然后您需要的只是

moment().subtract('days', 7).format('DD-MMM-YYYY')

成为

06-Nov-2013

Answer 2

您可以尝试这样： -

var d= new Date();
d.setDate(d.getDate() - 7);

使用Date.js可以这样做：

Date.parse("t - 7 d").toString("MM-dd-yyyy");     
Date.today().addDays(-7).toString("MM-dd-yyyy");  
Date.today().addWeeks(-1).toString("MM-dd-yyyy");

Answer 3

只需在d.setDate(d.getDate() - 7);

之后添加var d = new Date();即可

 var m_names = new Array("JAN", "FEB", "MAR",
     "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC");
 var d = new Date();
 d.setDate(d.getDate() - 7);
 var curr_date = d.getDate();
 var curr_month = d.getMonth();
 var curr_year = d.getFullYear();
 var current = curr_date + "-" + m_names[curr_month] + "-" + curr_year;

<强> jsFiddle example

Answer 4

Moment.js对于像这样的相对约会对象很棒：

var one_week_ago = moment().subtract('weeks', 1).format('DD-MMM-YYYY')

Answer 5

要对日期的元素求和或减去，您需要做的是：

let currentDate = new Date()
//get each element from the current date
let year = currentDate.getFullYear()
let month = currentDate.getMonth()
let day = currentDate.getDate()
let hours = currentDate.getHours()
let minutes = currentDate.getMinutes()
let seconds = currentDate.getSeconds()
let milliseconds = currentDate.getMilliseconds()


//build the new date according the changes you want to do
let newDate = new Date(year, month, day - 7, hours, minutes, seconds, milliseconds )
console.log(newDate.toISOString())

关于它的妙处是，即使每个参数的数字都不是“有效”，该方法也会正确调整它，例如，如果月份的数字为13，则日期将加上另一年月份将是1。

从当前日期减去1周 - javascript

5 个答案: