CODEWITHSUNDEEP
ruby
Matthew Morris
Matthew Morris

Reputation: 99

How would I set a variable to a boolean?

Instead of gets.chomp, is there anything I can use to turn their response into a boolean?

puts "Do you like pizza? (yes or no)"
pizza = gets.chomp    
if pizza == "yes"
  pizza = true
else
  pizza = false
end

I tried gets.to_b and gets.bool, but it doesn't seems to be working.

Upvotes: 0

Views: 2209

Answers (2)

spickermann
spickermann

Reputation: 106882

I would just use get[0] what returns the first character and allows you to accept y or yes:

puts 'Do you like pizza? (yes or no)'
pizza = gets[0] == 'y'

Or you can define a to_b method on String yourself:

class String
  def to_b
    # might want to add even more values to the list
    %w( y yes true 1 ).include?(self.chomp.downcase) 
  end
end

'yes'.to_b
#=> true
'no'.to_b
#=> false

Upvotes: 3

Mohammad Shahadat Hossain
Mohammad Shahadat Hossain

Reputation: 1349

You can do something like this:

puts "Do you like pizza? [yes/no]:"
pizza = gets.chomp    
case pizza
  when 'y','Y','yes'
    pizza = true
  when 'n', 'N','no' 
    pizza = false
end
puts pizza

Upvotes: 1

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