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Availability
This routine is available starting with SIL Engine™ 2.5.5.
Syntax
addMonths(date, noMonths)
Description
Adds a number of months to a specified date, preserving the day of month where possible.Parameters
Parameter name | Type | Required | Description |
|---|---|---|---|
date | date | Yes | Specifies a Date expression. |
| noMonths | number | Yes | Number of months to add. If given a negative number, will do subtract. |
Return type
date
Example
function addMonthsInDesc(date d, int noMonths){
desc += "Date " + d + " + " + noMonths + " months = " + addMonths(d, noMonths) + "\n";
}
desc = "";
addMonthsInDesc("2012-01-31", 1);
addMonthsInDesc("2012-04-30", -2);
addMonthsInDesc("2013-01-31", 1);
addMonthsInDesc("2013-04-30", -2);
addMonthsInDesc("2012-01-31", 12);
addMonthsInDesc("2012-01-31", -1);
Outputs to description:
Date 2012-01-31 00:00:00 + 1 months = 2012-02-29 00:00:00
Date 2012-04-30 00:00:00 + -2 months = 2012-02-29 00:00:00
Date 2013-01-31 00:00:00 + 1 months = 2013-02-28 00:00:00
Date 2013-04-30 00:00:00 + -2 months = 2013-02-28 00:00:00
Date 2012-01-31 00:00:00 + 12 months = 2013-01-31 00:00:00
Date 2012-01-31 00:00:00 + -1 months = 2011-12-31 00:00:00
See also