month range error

[HamedDN]

there is a problem on (dateProvider as Jalali).withDay(30).addMonths(-1) when month is 1 and day is 30 or 31.

[FatulM]

Hi, there is not a problem :smiley: with this operation you will get Jalali(year, 12, 30) and since the last year is not a leap year, this is not a valid date and so it will throw an error

[FatulM]

what do you want to achieve exactly ?

[HamedDN]

what do you want to achieve exactly ?

i want if the before month does not have the 30th day it give me the last day of the before month, Not "RageError"

[FatulM]

this is not done automatically in shamsi_date library, but you can do something like this:

tmp = date.addMonth(-1);
newDate = tmp.withDay(tmp.monthLength)

is this working for you ? @HamedDN

or i think something like this will also work:

date.withDay(1) - 1

or equivalently

date.withDay(1).addDays(-1)

[HamedDN]

this is not done automatically in shamsi_date library, but you can do something like this:

tmp = date.addMonth(-1);
newDate = tmp.withDay(tmp.monthLength)

is this working for you ? @HamedDN

yeah it work, i did this in my project, but it can be somthing that you add to your package.