使用javascript或jquery获取当月的第一个和最后一个日期
问题描述:
正如标题所示,我坚持找到一种方法来获得第一个和最后一个日期当前月份使用javascript或jquery,并将其格式化为:
As title says, i'm stuck on finding a way to get the first and last date of the current month with javascript or jquery, and format it as:
例如,十一月份应该是:
For example, for november it should be :
var firstdate = '11/01/2012';
var lastdate = '11/30/2012';
答
很简单,不需要库:
var date = new Date();
var firstDay = new Date(date.getFullYear(), date.getMonth(), 1);
var lastDay = new Date(date.getFullYear(), date.getMonth() + 1, 0);
或者您可能更喜欢:
var date = new Date(), y = date.getFullYear(), m = date.getMonth();
var firstDay = new Date(y, m, 1);
var lastDay = new Date(y, m + 1, 0);
EDIT
有些浏览器会对待两个数字年份为二十世纪,因此:
EDIT
Some browsers will treat two digit years as being in the 20th century, so that:
new Date(14, 0, 1);
给出了1914年1月1日。为避免这一点,创建一个日期,然后使用 setFullYear :
gives 1 January, 1914. To avoid that, create a Date then set its values using setFullYear:
var date = new Date();
date.setFullYear(14, 0, 1); // 1 January, 14