javascript - 如何在JavaScript中添加月份到日期？ [重复](How to add months to a date in JavaScript? [duplicate])

Question

This question already has an answer here:

(这个问题在这里已有答案：)

• JavaScript function to add X months to a date 17 answers

  (JavaScript函数将X个月添加到日期 17个答案)

I want to add months to a date in JavaScript.

(我想在JavaScript中添加几个月的日期。)

For example: I am inserting date 06/01/2011 (format mm/dd/yyyy ) and now I want to add 8 months to this date.

(例如：我正在插入日期06/01/2011 （格式mm/dd/yyyy ），现在我想在这个日期添加8个月。)

I want the result to be 02/01/2012 .

(我希望结果是02/01/2012 。)

So when adding months, the year may also increase.

(因此，当添加月份时，年份也可能会增加。)

  ask by Kanak Vaghela translate from so

Answer 1

Corrected as of 25.06.2019:

(截至25.06.2019已更正：)

var newDate = new Date(date.setMonth(date.getMonth()+8));

Old From here :

(老从这里 ：)

var jan312009 = new Date(2009, 0, 31);
var eightMonthsFromJan312009  = jan312009.setMonth(jan312009.getMonth()+8);