From: Michal Zacik <michal.zacik@...>
Date: 2011-10-19T22:35:42+09:00
Subject: Re: why doesn't this work?

On 10/19/2011 03:09 PM, raphael teller wrote:
> hey, I am a C programmer that decided to learn Ruby. I got some
> exercises to do, but I'm having some trouble in this (silly)one:
>
> Problem Statement
> Given a sentence containing multiple words, find the frequency of a
> given word in that sentence.
>
> i wrote the code below
>
> def find_frequency(sentence, word)
>    array = Array.new
>    array<<  sentence.split(/ /)
>    array.delete_if {|i| i.to_s.downcase != word.downcase}.length
> end
>
> but it appears that (i.to_s.downcase) is always different from
> (word.downcase), even if the words are the same. can someone explain it
> to me, please?
>
> thanks
>
Hi,

array<<  sentence.split(/ /) # this pushes array into array
array = sentence.split(/ /)

and

i.to_s.downcase # to_s isn't needed

def find_frequency(sentence, word)
   array = Array.new
   array = sentence.split(/ /)
   array.delete_if {|i| i.downcase != word.downcase}.length
end


Michal