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# frozen_string_literal: true
class Array
# Removes and returns the elements for which the block returns a true value.
# If no block is given, an Enumerator is returned instead.
#
# numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# odd_numbers = numbers.extract! { |number| number.odd? } # => [1, 3, 5, 7, 9]
# numbers # => [0, 2, 4, 6, 8]
def extract!
return to_enum(:extract!) { size } unless block_given?
extracted_elements = []
reject! do |element|
extracted_elements << element if yield(element)
end
extracted_elements
end
end
|
