Use duck-typing to decide whether to extend string.

dizhu · Mar 14, 2013 · e9c9b43 · e9c9b43
1 parent 2ddf5ef
commit e9c9b43
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/roo/excelx.rb b/lib/roo/excelx.rb
@@ -3,7 +3,7 @@
 require 'rubygems'
 require 'nokogiri'
 
-if RUBY_VERSION < '1.9.0'
+unless ''.respond_to?(:end_with?)
   class  String
     def end_with?(str)
       self[-str.length,str.length] == str