Method: Array#-

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

#-(elem) ⇒ Object

call-seq:

ary - other_ary    -> new_ary

Array Difference—Returns a new array that is a copy of the original array, removing any items that also appear in other_ary. (If you need set-like behavior, see the library class Set.)

[ 1, 1, 2, 2, 3, 3, 4, 5 ] - [ 1, 2, 4 ]  #=>  [ 3, 3, 5 ]

Raises:



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# File 'ext/enterprise_script_service/mruby/mrbgems/mruby-array-ext/mrblib/array.rb', line 70

def -(elem)
  raise TypeError, "can't convert #{elem.class} into Array" unless elem.class == Array

  hash = {}
  array = []
  idx = 0
  len = elem.size
  while idx < len
    hash[elem[idx]] = true
    idx += 1
  end
  idx = 0
  len = size
  while idx < len
    v = self[idx]
    array << v unless hash[v]
    idx += 1
  end
  array
end