date.subtractMonths()
This method subtracts the number of months from the date.
Parameters
Numeric value
Return Value
Date with number of months subtracted
Example
pjs.define("date", { type: 'date', initValue: '2017-11-01'});
date = date.subtractMonths(2)
return date;
//2017-09-01
RPG Equivalent
%MONTHS()