From: Emeka Patrick <emekapatrick@...>
Date: 2011-12-10T09:14:12+09:00
Subject: Building a method - Learn to Program Section 9.5

In this program

def ask question
  while true
    puts question
    reply = gets.chomp.downcase

    if (reply != 'yes' || reply != 'no')
      puts 'Please answer "yes" or "no".'
    elsif reply == ''
    break
    end
  end
end

puts 'Hello, and thank you for...'
puts

ask "Do you like eating tacos?"       # Ignore this return value
ask "Do you like eating burritos?"    # And this one
wets_bed = ask 'Do you wet the bed?'  # Save this return value
ask 'Do you like eating chimichangas?'
ask 'Do you like eating sopapillas?'
puts 'Just a few more questions...'
ask 'Do you like drinking horchata?'
ask 'Do you like eating flautas?'


puts
puts 'DEBRIEFING:'
puts 'Thank you for...'
puts
puts wets_bed


am I stuck in a loop where no matter whether I enter 'yes' or 'no' or
anything at all after I'm asked

---
Hello, and thank you for...

Do you like eating tacos?
---

I get back

---
Please answer "yes" or "no".
Do you like eating tacos?
---

because I decided to ask if reply is different than 'yes' and/or
different than 'no'? as well as ask if it's the same as an empty string,
basically saying that this is a situation that will always be true?

I got this program to work by rewriting it

def ask question
  while true
    puts question
    reply = gets.chomp.downcase

 if (reply == 'yes' || reply == 'no')
      break
    else
      puts 'Please answer "yes" or "no".'
       if reply == ''
      break
       end
    end

etc etc....

, but I want to understand what I'd need to do to get it to work with !=
method.

Any insight / help would be appreciated.

Thanks,

Emeka

PS
I know since I didn't save a value for wets_bed I'm going to get nil
back, but just want to figure out the other stuff first.

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