Recently I was working on a fairly complex JavaScript script relating to floating point conversions for a new Web page. After a while I got tired on trying to debug the problem via a Web browser and decided to see if I could find a JavaScript shell, i.e. a standalone Javascript intrepreter just like Ruby’s irb, Python’s interactive prompt or the Korn shell, which could load and run JavaScript scripts from the command line without having to reload a Web page. First, some background on the JavaScript langauge for those who are unfamilar with the details. JavaScript is a complex full-featured weakly
