def greet(name)
"Hello, #{name}!"
end
greet('Ruby')
def greet(name)
"Hello, #{name}!"
end
greet('Ruby')
5.times do |i|
puts i
end
[1, 2, 3, 4, 5].map { |n| n * 2 }
Thread.new do
puts 'Hello from a thread'
end.join
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