Return in

About Return

In Crystal, the last expression in a method returns its value. However, sometimes you need to return a value before the last expression. For this, you can use the return keyword, which will return the value of the following expression. Code written after a return keyword will not be executed.

def speed_limit(road_number)
    if road_number == 1
        return 50
        puts "This will not be executed"
    elsif road_number == 2
        return 80
        puts "This will not be executed"
    end
    100
end

p speed_limit(1) # => 50
p speed_limit(2) # => 80
p speed_limit(3) # => 100