Rails before? after? methods to compare date / time

Before Rails 6.0, the date/time are compared by using the equality operators like less than (<) or greater than (>), etc. Sometimes, date/time comparison using these operators takes some time to understand as these conventions are not human-readable at least for dates.

Now, Rails 6.0 active support introduced with two new methods before? & after? for comparing Date, Time, DateTime, and TimeWithZone (see Pull Request).

Before Rails 6

Date.yesterday < Date.today   # true

Time.current < (Time.current - 1.hour)            # false

(DateTime.current - 1.day) < DateTime.current     # true
DateTime.current < (DateTime.current - 1.day)     # false

After Rails 6

Date.yesterday.before? Date.today                       # true

Time.current.after? (Time.current - 1.hour)             # false

(DateTime.current - 1.day).before? DateTime.current     # true
DateTime.current.after? (DateTime.current - 1.day)      # false

Conclusion

The methods before? and after? are more human-readable and easy to understand than using the equality operators ( ‘<‘ and ‘>’) to compare the Date, Time, DateTime, and TimeWithZone objects

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