Date.convert-exclamation-mark
You're seeing just the function
convert-exclamation-mark
, go back to Date module for more information.
Specs
convert!(Calendar.date(), Calendar.calendar()) :: t()
Similar to Date.convert/2
, but raises an ArgumentError
if the conversion between the two calendars is not possible.
Examples
Imagine someone implements Calendar.Holocene
, a calendar based on the
Gregorian calendar that adds exactly 10,000 years to the current Gregorian
year:
iex> Date.convert!(~D[2000-01-01], Calendar.Holocene)
%Date{calendar: Calendar.Holocene, year: 12000, month: 1, day: 1}