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23 lines
472 B
Markdown
23 lines
472 B
Markdown
# Question Mark Operator
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Ruby has a question mark (`?`) operator that works like so
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```ruby
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> ?a
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=> "a"
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> ?\s
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=> " "
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> ??
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=> "?"
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> ?a + ?b + ?c
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=> "abc"
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```
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It essentially creates single character strings. At least in Ruby 1.9+ it
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does. In versions of Ruby before 1.9, the `?` operator could be used to get
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the ascii character code of the operand character.
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h/t Josh Davey
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[source](http://stackoverflow.com/questions/16641205/what-does-the-question-mark-operator-do)
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