public Method

Set.subtract(enum)

Source
Home > Ruby > Ruby > Standard Library > Set > subtract

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

Source Code

# File set.rb, line 266
def subtract(enum)
  enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
  enum.each { |o| delete(o) }
  self
end
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