Module: Enumerable

Defined in:
lib/compatibility.rb

Instance Method Summary collapse

Instance Method Details

#uniq_by ⇒ Object 



2
3
4
5
 
# File 'lib/compatibility.rb', line 2

def uniq_by
  seen = Hash.new { |h,k| h[k] = true; false }
  reject { |v| seen[yield(v)] }
end