Ruby shortcut for "if (number in range) then..."

Is there a Ruby shortcut for the following?

if (x > 2) and (x < 10)
  do_something_here
end

I thought I saw something to that effect, but cannot find a reference to it. Of course it's hard to lookup when you don't know what opera开发者_Go百科tor you're looking for.

if (3..9).include? x
  # whatever
end

As a sidenote, you can also use the triple equals operator for ranges:

if (3..9) === x
  # whatever
end

This lets you use them in case statements as well:

case x
  when 3..9
    # Do something
  when 10..17
    # Do something else
end

do_something if (3..9).include?( x )   # inclusive
do_something if (3...10).include?( x ) # inclusive start, exclusive end

See the Range class; you can read an introduction to them hosted on my website.

Comparable#between?

do_something if x.between?(2, 10)

Something like this?

do_something if (3..9) === x

or

r = 3..9
if r === x
  . . .