Module: Enumerable

Defined in:

lib/overwrite.rb

Instance Method Summary

• #duplicates ⇒ Array

  Only the duplicates of an enumerable.

Instance Method Details

#duplicates ⇒ Array

Returns only the duplicates of an enumerable.

Returns:

• (Array) —

  only the duplicates of an enumerable

# File 'lib/overwrite.rb', line 35

def duplicates
  inject({}) {|h,v| h[v]=h[v].to_i+1; h}.reject{|k,v| v==1}.keys
end