【JavaScript】日期加減–DateAdd
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<script language="JavaScript"> <!-- //日期加減 timeU︰類型 byMany︰間隔(正負數) dateObj︰日期型態 function DateAdd (timeU,byMany,dateObj) { var millisecond=1; var second=millisecond*1000; var minute=second*60; var hour=minute*60; var day=hour*24; var year=day*365; var newDate; var dVal=dateObj.valueOf(); var date=new Date(dateObj); // For months switch(timeU) { case "ms": newDate=new Date(dVal+millisecond*byMany); break; case "s": newDate=new Date(dVal+second*byMany); break; //秒 case "mi": newDate=new Date(dVal+minute*byMany); break; //分 case "h": newDate=new Date(dVal+hour*byMany); break; //時 case "m": newDate=new...