method

intersect?

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What's this?

intersect?(set) public

Returns true if the set and the given set have at least one element in common.

e.g.:

require 'set'
Set[1, 2, 3].intersect? Set[4, 5] # => false
Set[1, 2, 3].intersect? Set[3, 4] # => true

Show source

# File lib/set.rb, line 297
  def intersect?(set)
    set.is_a?(Set) or raise ArgumentError, "value must be a set"
    if size < set.size
      any? { |o| set.include?(o) }
    else
      set.any? { |o| include?(o) }
    end
  end

intersect?

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