More Enumerables

Skill Level: Beginner

You've already used sort_by and similar equivalents, now let's learn more about Ruby's Enumerable methods! If you've completed the challenge correctly, when you run the script it should result in a number of true values.

Instructions

• Only use Enumerable methods
• Don't duplicate methods for each function. If you use select once, don't use it again for the challenge.

Resources

• Ruby Documentation: Enumerable
• The Bastards Book of Ruby: Enumerables