DatePart
DatePart(interval, date[, firstdayofweek[, firstweekofyear]])
Description
DatePart returns a number specifying a part of the given date. The required parameter, interval, determines the part of date which is measured and returned. The optional parameter firstdayofweek is Sunday, if not specified The optional firstweekofyear is the week containing January 1, if not specified.
Interval Values
| Value | Description |
|---|---|
| yyyy | Year |
| q | Quarter |
| m | Month |
| y | Day of year |
| d | Day |
| w | Weekday |
| ww | Week of year |
| h | Hour |
| n | Minute |
| s | Second |
Example (Basic)
Rem DatePart Example
'DatePart returns a number from part of a date
Dim QuarterPart, MonthPart, DayPart
QuarterPart = DatePart("q", Now)
MonthPart = DatePart("m", Now)
DayPart = DatePart("d", Now)
Print "Today is day " & DayPart
Print "of month " & MonthPart
Print "in quarter " & QuarterPart
Example (JavaScript)
// DatePart Example
/* DatePart returns a number from part of a date */
Date.prototype.DatePart = function(typ) {
dt=this;
if (!typ) return dt;
switch (typ.toLowerCase()) {
case 'yyyy':
return dt.getFullYear(); break;
case 'q':
return Math.ceil((dt.getMonth()+1)/3); break;
case 'm':
return dt.getMonth()+1; break;
case 'y':
var dt1 = new Date('1/1/'+dt.getFullYear());
nDays = (dt-dt1) / 86400000;
nDaysDiff = Math.round(nDays+1);
return nDaysDiff; break;
case 'd':
return dt.getDate(); break;
case 'w':
return dt.getDay()+1; break;
case 'ww':
var dt1 = new Date('1/1/'+dt.getFullYear());
nDays = (Math.floor((dt-dt1)/86400000)+(dt1.getDay()+1));
nWeek = Math.ceil((nDays)/7);
return nWeek; break;
case 'h':
return dt.getHours(); break;
case 'n':
return dt.getMinutes(); break;
case 's':
return dt.getSeconds(); break;
}
return dt;
}
var QuarterPart, MonthPart, DayPart;
var dt = new Date();
QuarterPart = dt.DatePart("q");
MonthPart = dt.DatePart("m");
DayPart = dt.DatePart("d");
document.write("Today is day " + DayPart + "<br>");
document.write("of month " + MonthPart + "<br>");
document.write("in quarter " + QuarterPart + "<br>");
Output
Today is day 18
of month 8
in quarter 3
(''sample output from August 18, 1998'')