我有两个约会.一个是开始日期,另一个是结束日期.我想计算星期六,星期一和星期三在日期范围内的数量？我该如何解决？我看了几个教程,但他们只计算日期范围内的日期.提前致谢.我使用以下代码来计算工作日,但我只需要在星期六,星期一和星期三的日期范围内.
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function calcBusinessDays(dDate1, dDate2) { // input given as Date objects
var iWeeks, iDateDiff, iAdjust = 0;
if (dDate2 < dDate1) return -1; // error code if dates transposed
var iWeekday1 = dDate1.getDay(); // day of week
var iWeekday2 = dDate2.getDay();
iWeekday1 = (iWeekday1 == 0) ? 7 : iWeekday1; // change Sunday from 0 to 7
iWeekday2 = (iWeekday2 == 0) ? 7 : …