Question

i 需要使用 Date 中 date 的 javascript 计算30天的日期。

var now = new Date();

示例:

如果今天是2013年2月13日,30天后是2013年3月15日,那么与 30DaysLaterMonth=实际的Month+1. 不同。

I hope my question is clear.. :) thanks everybody!

Answer 1

var now = new Date(); 
now.setDate(now.getDate() + 30);

Answer 2

我认为你最好使用"http://www.datejs.com/" rel="noreferrer"\\\ strong>Datejs

Datejs是一个开放源码 JavaScript 日期库。

或您可以自己完成:

var cur = new Date(),
    after30days = cur.setDate(cur.getDate() + 30);

Answer 3

var now = new Date();
var 30DaysLaterMonth = now.getDate() + 30;

Answer 4

本地 javacript, 请使用 < code> Date. UTC( 年、月、日) 来获取 1971-01- 01 的毫秒数。除添加天数 * (864000) 之外, 另从此值创建日期 :

var date_one_ms = Date.UTC(2012, 05, 25);
var ms_in_day = 24*3600*1000; // 86400000;
var date_30_days_later = new Date(date_one_ms + 30 * ms_in_day);

Answer 5

var d = new Date();
   d.setDate(d.getDate() + 30);

Answer 6

<% 1\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ <\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

let now = new Date()
console.log(now)
let last30days = new Date(now.setDate(now.getDate() - 30))
console.log(last30days)

从今天起30天后到达 < manger>

let now = new Date()
console.log(now)
let next30days = new Date(now.setDate(now.getDate() + 30))
console.log(next30days)

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