I think Xtend has extension methods for any Iterable that do what you want: http://download.eclipse.org/modeling/tmf/xtext/javadoc/2.0.1/org/eclipse/xtext/xbase

I think Xtend has extension methods for any Iterable that do what you want: http://download.eclipse.org/modeling/tmf/xtext/javadoc/2.0.1/org/eclipse/xtext/xbase/lib/IterableExtensions.html http://download.eclipse.org/modeling/tmf/xtext/javadoc/2.0.1... Point taken on Strings though - in this situation you'd want String to extend Iterable but it doesn't for historical reasons.