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Make a string uppercase
Transform
"Space Monkey" into "SPACE MONKEY"
ruby
uppper = text.upcase
Make a string lowercase
Transform
"Caps ARE overRated" into "caps are overrated"
ruby
"Caps ARE overRated".downcase
Capitalise the first letter of each word
Transform
"man OF stEEL" into "Man Of Steel"
ruby
caps = text.gsub(/\w+/) { $&.capitalize }
caps = text.split.each{|i| i.capitalize!}.join(' ')
text.split.map(&:capitalize) * ' '
