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view 1-Ruby/truthiness-irb.output @ 71:32f018861e36
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author | IBBoard <dev@ibboard.co.uk> |
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date | Fri, 02 Feb 2018 20:38:36 +0000 |
parents | 8d46064c9afc |
children |
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truthiness.rb(main):001:0> #! /usr/bin/env ruby truthiness.rb(main):002:0* truthiness.rb(main):003:0* values = [ true, false, 1, 0, -1, 'some string', '', nil ] => [true, false, 1, 0, -1, "some string", "", nil] truthiness.rb(main):004:0> truthiness.rb(main):005:0* values.each do |val| truthiness.rb(main):006:1* text = if val == nil then "nil" else "'#{val}'" end truthiness.rb(main):007:1> puts "Val #{text} is truthy" if val truthiness.rb(main):008:1> puts "Val #{text} is falsy" unless val truthiness.rb(main):009:1> end Val 'true' is truthy Val 'false' is falsy Val '1' is truthy Val '0' is truthy Val '-1' is truthy Val 'some string' is truthy Val '' is truthy Val nil is falsy => [true, false, 1, 0, -1, "some string", "", nil] truthiness.rb(main):010:0>