Show HN: Nettu Scheduler – A self-hosted calendar and scheduler server

Re:Show HN: Nettu Scheduler – A self-hosted calendar and sch... by de6u99er on Monday March 29, 2021 @10:37AM (#26622298)

From my experience it is a common mistake to do overlap comparisons of intervals this way.

IMO start time should be treated as inclusive, and end time as exclusive.

E.g. an event from 1pm-2pm does not overlap with an event starting at 2pm because it's end-time is defined as exclusive.

Therefore you need to replace one of you greater/lower-than's with a normal greater/lower comparison operator.

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Re:Show HN: Nettu Scheduler – A self-hosted calendar and sch... by fmeringdal on Monday March 29, 2021 @03:14PM (#26626850)

Thanks for your feedback! I will look into it :)

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Re:Show HN: Nettu Scheduler – A self-hosted calendar and sch... by de6u99er on Monday March 29, 2021 @06:29PM (#26629095)

No problem. Took me 2 min to find it. I actually searched for the term "overlap" to see if you're doing it correctly ;)

At least you're using one if statement. Many do interval overlap comparisons with two if statements.

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Re:Show HN: Nettu Scheduler – A self-hosted calendar and sch... by fmeringdal on Monday March 29, 2021 @06:34PM (#26629144)

Haha! I must admit that I also did two if statements the first time I implemented overlaps ;)

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