7.6 The DATE module
-
Sealed methods
Summary
Performs subtraction on specific combinations of dates and durations.
Signature
- arg1 arg2 => diff
Arguments
- arg1
- An instance of
<date>or<duration>. See description for details. - arg2
- An instance of
<duration>, or an instance of<date>if arg1 is a<date>. See description for details.
Values
- diff
- An instance of
<date>or<duration>. See description for details.
Library
system
Module
date
Description
A number of methods are defined for the - generic function to allow subtraction of various combinations of dates and durations. Note that there is not a method defined for every possible combination of date and duration. Specifically, you cannot subtract a date from a duration, and you cannot subtract different types of duration. The return value can be either a date or a duration, depending on the arguments supplied. The table below lists the methods that are defined on -.
arg1 | arg2 | diff |
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