Method: Array#select!

Defined in:
ext/enterprise_script_service/mruby/mrbgems/mruby-array-ext/mrblib/array.rb

#select!(&block) ⇒ Object Also known as: filter!

call-seq:

   ary.select!  {|item| block } -> ary or nil
   ary.select!                  -> Enumerator

Invokes the given block passing in successive elements from +self+,
deleting elements for which the block returns a +false+ value.

If changes were made, it will return +self+, otherwise it returns +nil+.

See also Array#keep_if

If no block is given, an Enumerator is returned instead.



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# File 'ext/enterprise_script_service/mruby/mrbgems/mruby-array-ext/mrblib/array.rb', line 764

def select!(&block)
  return to_enum :select! unless block

  result = []
  idx = 0
  len = size
  while idx < len
    elem = self[idx]
    result << elem if block.call(elem)
    idx += 1
  end
  return nil if len == result.size
  self.replace(result)
end