Sha256: e97dd73c23242eb0231cc4722de26830e58585a536a8aee916e333f1b5d31e94
Contents?: true
Size: 516 Bytes
Versions: 6
Compression:
Stored size: 516 Bytes
Contents
class Array # Returns a list of non-unique elements # # [1,1,2,2,3,4,5].nonuniq #=> [1,2] # # CREDIT: Martin DeMello def nonuniq h1 = {} h2 = {} each {|i| h2[i] = true if h1[i] h1[i] = true } h2.keys end # def nonuniq! h1 = {} h2 = {} each {|i| h2[i] = true if h1[i] h1[i] = true } self.replace(h2.keys) end # Return list of duplictate elements. # # CREDIT: Thibaut Barrère alias_method :duplicates, :nonuniq end
Version data entries
6 entries across 5 versions & 1 rubygems