Why does comparing strings in Ruby always return false?

Question

I use the following to check whether the answer to a posed question is true or false:

when "new" 
  n = nums[rand(nums.length)]
  puts "Question:"
  puts qs[n].question
  torf = gets.downcase.to_str.eql? qs[n].answer.downcase.to_str
  puts torf

But the result torf is always false even if the right answer is put. What am I missing?

Bad question. You have many variables/methods without explanation (nums, qs, question, answer). You also are not closing when with end. — sawa
– sawa, Commented May 15, 2011 at 20:10

Mario Visic · Accepted Answer · 2012-01-03 14:14:38Z

4

gets will return the entered string plus a newline charcter, so you'll need to remove it. As it is a string you don't need to run to_str on the result either.

 torf = gets.downcase.chomp.eql? qs[n].answer.downcase.to_s

edited Jan 3, 2012 at 14:14

answered May 15, 2011 at 12:03

Mario Visic

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3 Comments

Mario Visic Over a year ago

You can also rewrite n = nums[rand(nums.length)] to be: n = nums.sample

Phrogz Over a year ago

You should be using to_s, not to_str.

Zabba Over a year ago

Adding to @Phrogz 's comment, here is an article on to_s vs to_str

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