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Monday, December 17, 2012
LearnStreet Sample Solution to Lesson 9 Exercise 3
numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
# your code here
numbers.collect! do |x|
if x % 2 != 0
x
else
nil
end
end
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