Tried Dart a while back and really liked the language.<p>But I found the emphasis on Dart&#x27;s use as an application building language didn&#x27;t fit my use case very well - compiling JavaScript libraries.<p>In short, I wanted to use Dart as a cleaner replacement for the Closure libraries and compiler. It didn&#x27;t work well. Not only was the JavaScript quite large, but exposing APIs was a time-consuming manual process.<p>I noticed the change of focus to using Dart as a language that transpiles to JavaScript for in-browser use. That sounds like what I&#x27;m looking for.<p>When will it be possible to use Dart to conveniently create minified JavaScript libraries that expose well-defined interfaces?