Thanks for the post! In the following example under Select...
even_numbers = [1, 2, 3, 4, 5].map { |element| element if element.even? } # [ni, 2, nil, 4, nil] even_numbers = even_numbers.compact # [2, 4]
...I noticed that after the first line, even_numbers is:
[nil, 2, nil, 4]`
[nil, 2, nil, 4]
Why does element if element.even? return nil when element.even? is false?
element if element.even?
element.even?
~s
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Thanks for the post! In the following example under Select...
...I noticed that after the first line, even_numbers is:
[nil, 2, nil, 4]`Why does
element if element.even?return nil whenelement.even?is false?~s