Reverse Each Word

word_reverse.rb

#step-by-step function, feel free to follow along in IRB
def reverse_each_word(sentence)
  reverse_each_word = sentence.split(' ')
  #collect is also known as map in some other languages, basically it takes a set A and transforms it into a set B
  reversed_words = reverse_each_word.collect { |word| word.reverse }
  #join does the logical OPPOSITE of split, it takes an array and creates a string according to a split character
  reversed_words.join(' ')
end

#even more succinctly, leveraging the power of Ruby idioms and syntatic sugar, the whole function in can be written in ONE LINE
def reverse_each_word(sentence)
  #this is one of the many reasons I LOVE Ruby...expressing something equivalent in Java is so tedious and verbose...
  #however, a bit difficult to read when you're leaning Ruby because you have to understand each of these functions and their side effects
  sentence.split(' ').collect(&:reverse).join(' ')
end