Contents

class Hash
  # Returns true or false whether the hash
  # contains the given keys.
  #
  #   require 'facet/hash/has_keys?'
  #
  #   h = { :a => 1, :b => 2 }
  #   h.has_keys?( :a )   #=> true
  #   h.has_keys?( :c )   #=> false
  #
  def has_keys?(*check_keys)
    unknown_keys = check_keys - self.keys
    return unknown_keys.empty?
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
facets-0.7.1	lib/facet/hash/has_keys%3F.rb
facets-0.7.0	lib/facet/hash/has_keys%3F.rb
facets-0.7.2	lib/facet/hash/has_keys%3F.rb