Course of Raku / Advanced / More about built-in types / Date and time / Exercises / One week later

Solution: One week later

Here is a possible solution to the task.

Code

my $later = Date.new(2027, 2, 28).later(:days(7));
say $later;
say $later.day-of-week;

🦋 You can find the source code in the file one-week-later.raku.

Output

2027-03-07
7

Comments

1. later(:days(7)) moves the date forward by seven days — one week. We could also have written + 7, but the named argument states the unit explicitly.

2. February 2027 has 28 days, so a week after the 28th rolls over into March automatically: the result is 2027-03-07.

3. Calling day-of-week on the new date gives 7. This makes the result easy to check: a date exactly one week later must fall on the same weekday as the original, and 2027-02-28 is a Sunday (7) too — so a 7 here is the answer you expect.

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