lib/bamfcsv/table.rb in bamfcsv-0.1.1 vs lib/bamfcsv/table.rb in bamfcsv-0.1.2

@@ -10,12 +10,15 @@
       end
       @row_cache = []
     end
 
     def each
-      @matrix.size.times do |idx|
-        yield self[idx]
+      if block_given?
+        @matrix.size.times do |idx|
+          yield self[idx]
+        end
       end
+      self
     end
 
     def [](idx)
       idx += @matrix.size if idx < 0
       return if idx < 0 || idx >= @matrix.size