Ruby Method of the Day - Array.compact and Array.compact!
Signature
array.compact #=> new_array array.compact! #=> array or nil
array.compact returns new_array that contains all non-nil
elements in array (nil elements removed). array.compact! either returns
array with all nil elements removed or returns nil if no nil
elements were removed.
Examples
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a = [1, nil, nil, 4, nil] #=> [1, nil, nil, 4, nil] a.compact #=> [1, 4] a #=> [1, nil, nil, 4, nil] a.compact! #=> [1, 4] a #=> [1, 4] a.compact! #=> nil |
Documentation Reference
Ruby version 1.8.6
