如何在javascript中查看当前周或当前月份或下个月的日期？
我有一些朋友的生日，并希望将它们分开如下：
- 生日属于当前周（从当天开始的当前周的剩余天数内）。
- 属于当月的生日（从当天开始的当月剩余天数内）。
- 生日在下个月内。
所以我想知道如何在javascript中测试每个日期，看它是否在当前周/当月/下个月的剩余天数内。
注意：我说那些日期是m / d / Y（06/29/1990）格式。
谢谢
将您的日期和当前时间转换为Date对象并将其用于比较。 一些干编码：
var now = new Date() if ( (check.getFullYear() == now.getFullYear()) && (check.getMonth() == now.getMonth()) && (check.getDate() >= now.getDate()) ) { // remanining days in current month and today. Use > if you don't need today. } var nextMonth = now.getMonth() + 1 var nextYear = now.getFullYear() if (nextMonth == 12) { nextMonth = 0 nextYear++ } if ( (check.getFullYear() == nextYear) && (check.getMonth() == nextMonth) ) { // any day in next month. Doesn't include current month remaining days. } var now = new Date() now.setHours(12) now.setMinutes(0) now.setSeconds(0) now.setMilliseconds(0) var end_of_week = new Date(now.getTime() + (6 - now.getDay()) * 24*60*60*1000 ) end_of_week.setHours(23) end_of_week.setMinutes(59) end_of_week.setSeconds(59) // gee, bye-bye leap second if ( check >=now && check <= end_of_week) { // between now and end of week }
使用解析日期的代码是
var selecteddate = '07/29/1990'; var datestr = selecteddate.split('/'); var month = datestr[0]; var day = datestr[1]; var year = datestr[2]; var currentdate = new Date(); var cur_month = currentdate.getMonth() + 1; var cur_day =currentdate.getDate(); var cur_year =currentdate.getFullYear(); if(cur_month==month && day >= cur_day) { alert("in this month"); } else { alert("not in this month"); }