Issue using method 'odd?'


#1

I keep getting a no method error when trying to find out if a count is
an odd number. I had tested the code with actual numbers and it works
fine. It seems like it is not liking how I am trying to use the method
‘odd?’ The count’s class is of FixNum. I have tried converting to
interger but got same result. Here is the code that I am using. Do you
know if I need a gem or what I have not done here? Thanks. MC

searchText.rb:38: undefined method odd?' for 8:Fixnum (NoMethodError) from searchText.rb:30:ineach’
from searchText.rb:30


count1 = Hash.new(0)

File.open(“NTemp.txt”) do |src|
src.each_line do |line|
word1 = line.chomp.split(",")
count1[word1] += 1
#~ count2[word2] += 1
end
end

words = (count1.keys).uniq
words.each do |word|

#~ if count[word] == 1
#~ if count[word] == 2

if count[word].odd? == true
puts “Value does not contain a match: #{word}”
end
end


#2

On Tue, Jan 20, 2009 at 5:26 PM, Mmcolli00 Mom removed_email_address@domain.invalid
wrote:


words = (count1.keys).uniq
Posted via http://www.ruby-forum.com/.

Ruby 1.8 doesn’t have an odd? method per se. Rail’s ActiveSupport adds
one to Integer. The code is quite simple, so I wouldn’t require active
support only for this:

  module EvenOdd
    def multiple_of?(number)
      self % number == 0
    end

    def even?
      multiple_of? 2
    end if RUBY_VERSION < '1.9'

    def odd?
      !even?
    end if RUBY_VERSION < '1.9'
  end

Ruby 1.9 has Fixnum#odd? though.

Jesus.


#3

Jesús Gabriel y Galán wrote:

Ruby 1.8 doesn’t have an odd? method per se. Rail’s ActiveSupport adds
one to Integer. The code is quite simple, so I wouldn’t require active
support only for this:

Ruby 1.8.7 has odd?

uzimonkey@WOPRJr:~$ ruby -v
ruby 1.8.7 (2008-08-11 patchlevel 72) [i486-linux]
uzimonkey@WOPRJr:~$ ruby -e ‘puts 1.odd?’
true


#4

On Tue, Jan 20, 2009 at 5:48 PM, Michael M. removed_email_address@domain.invalid
wrote:

uzimonkey@WOPRJr:~$ ruby -e ‘puts 1.odd?’
true

Doh, you are right ! I was checking 1.8.6.

Jesus.