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name = "Jon"

if !employee.fulltime?
  puts "Employee is not full time."
end

unless employee.fulltime?
  puts "Employee is not full time."
end

3.times { puts "Hi!" }

Result

Hi!
Hi!
Hi!

puts "Hello"
print "there!"

Result

Hello
there!

"3".length

Result

1

3.length

Result

(eval):1: undefined method `length' for 3:Fixnum (NoMethodError)

puts "Ruby".downcase.upcase.reverse

Result

YBUR