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Kizdar net |
Kizdar net |
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It is the ternary operator, and it works like in C (the parenthesis are not required). It's an expression that works like:
if_this_is_a_true_value ? then_the_result_is_this : else_it_is_thisHowever, in Ruby, if is also an expression so: if a then b else c end === a ? b : c, except for precedence issues. Both are expressions.
Examples:
puts (if 1 then 2 else 3 end) # => 2puts 1 ? 2 : 3 # => 2x = if 1 then 2 else 3 endputs x # => 2Note that in the first case parenthesis are required (otherwise Ruby is confused because it thinks it is puts if...
Content Under CC-BY-SA license How do I use the conditional operator (? :) in Ruby?
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