文章摘要
这篇文章介绍了如何使用JavaScript语言编写一个函数`calcWeekTotal`,该函数用于计算给定日期所在的月份的总周数和当前的周数。通过`DateFormatter.parseDateString`解析日期,找到本月第一周的星期一,计算该月的总天数,然后推导出总周数和当前周数。代码简洁地实现了日期计算逻辑,适用于需要统计月份周数的应用场景。
<pre name=”code” class=”html”>private function calcWeekTotal(showDate:Date):Array{
showDate=DateFormatter.parseDateString(“2013-04-01”);
//获取本月1好的日期
var oneDate:Date=new Date(showDate.fullYear,showDate.month,1);
//本月第一周星期一的日期
var oneWeekDate:int=7 – oneDate.day + 2;
//本月共几天
var totalDay :int=new Date(showDate.fullYear,showDate.month,0).date;
var totalWeek:int=(totalDay – oneWeekDate + 1) % 7==0 ?
(totalDay – oneWeekDate + 1) /7:(totalDay – oneWeekDate + 1) /7 + 1;
trace(totalWeek);
//当前日期在本月第几周
var currentWeek:int=new int((showDate.date – oneWeekDate)/7) + 1;
if(currentWeek==0){
//上个月最后一周
}
<pre name=”code” class=”html”>private function calcWeekTotal(showDate:Date):Array{
showDate=DateFormatter.parseDateString(“2013-04-01”);
//获取本月1好的日期
var oneDate:Date=new Date(showDate.fullYear,showDate.month,1);
//本月第一周星期一的日期
var oneWeekDate:int=7 – oneDate.day + 2;
//本月共几天
var totalDay :int=new Date(showDate.fullYear,showDate.month,0).date;
var totalWeek:int=(totalDay – oneWeekDate + 1) % 7==0 ?
(totalDay – oneWeekDate + 1) /7:(totalDay – oneWeekDate + 1) /7 + 1;
trace(totalWeek);
//当前日期在本月第几周
var currentWeek:int=new int((showDate.date – oneWeekDate)/7) + 1;
if(currentWeek==0){
//上个月最后一周
}
var arr:Array=new Array();
arr[0]=totalWeek;
arr[1]=currentWeek;
return arr;
}</pre><br>
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