c849e75041
Hash key checking is not necessary in this case. If a key doesn't exist in a Hash, Ruby returns nil by default and nil is falsy. Hash key checking would only be necessary if the Hash had been set up with a default value.
17 lines
330 B
Ruby
17 lines
330 B
Ruby
# in order to be accessible from within the check_voter function
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# voted has to be an instance variable (or global / class)
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@voted = {}
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def check_voter(name)
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if @voted[name]
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puts "kick them out!"
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else
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@voted[name] = true
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puts "let them vote!"
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end
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end
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check_voter("tom")
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check_voter("mike")
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check_voter("mike")
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