Question

Sure enough there are more than a way to convert the following strings either form left to right or vice versa

"content-management-systems" <=> "Content Management Systems"

What’s the ruby way here ?

Answer 1

This is tricky one:

puts "content-management-systems".split("-").map(&:capitalize).join(" ").
     tap{ |str| puts str}.
     split.map(&:downcase).join("-")

#=> Content Management Systems
#=> content-management-systems

The simplified variant:

"content-management-systems".split("-").map(&:capitalize).join(" ") 
#=> Content Management Systems

"Content Management Systems".split.map(&:downcase).join("-")
#=> content-management-systems

The clean variant (from Micheal):

"content-management-systems".split("-").map(&:capitalize).join(" ").
split(" ").map(&:downcase).join("-")