Method: Immutable::Enumerable#grep

Defined in:
lib/immutable/enumerable.rb

#grep(pattern, &block) ⇒ Object

Search the collection for elements which are ‘#===` to item. Yield them to the optional code block if provided, and return them as a new collection.



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# File 'lib/immutable/enumerable.rb', line 27

def grep(pattern, &block)
  result = select { |item| pattern === item }
  result = result.map(&block) if block_given?
  result
end