If you need to find if a particular element e is inside a range r***, you can use

r.cover?(e)

instead of the longer:

r.member?(e)

or

r.include?(e)

*This is true only if r.exclude_end? is false

If you need to find if a particular element e is inside a range r, you can use

r===e

instead of the longer:

r.cover?(e) # only works if `r.exclude_end?` is false

or

r.member?(e)

or

r.include?(e)