CODEWITHSUNDEEP
rubyjoin
user6149583
user6149583

Reputation: 11

Turning a string back into an array with #join method

I am trying to reverse each word of a string.

def reverse(string)
  words=string.split(" ")
  words.each do |word|
    new_string = word.reverse!.join(" ")
  end
end

reverse('hello from the other side')

Can someone tell me why this isn't working?

Upvotes: 0

Views: 55

Answers (1)

Cary Swoveland
Cary Swoveland

Reputation: 110685

.join(" ") is in the wrong place. Move it to the end of your penultimate line:

def reverse(string)
  words=string.split(" ")
  words.each do |word|
    word.reverse!
  end.join(" ")
end

reverse('hello from the other side')
  #=> "olleh morf eht rehto edis"

I removed new_string = because it does nothing.

As you gain experience with Ruby you will find you could write this more compactly as follows:

def reverse(string)
  string.split.map(&:reverse).join(" ")
end

Upvotes: 2

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