method

subtract

v1_8_7_330 - Show latest stable - Class: Set

subtract(enum)

public

Deletes every element that appears in the given enumerable object and returns self.

# File lib/set.rb, line 272
  def subtract(enum)
    enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
    enum.each { |o| delete(o) }
    self
  end

subtract

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