title: looking for a shell for Javascript coding/experimenting using command line
body: <p>Is there a shell for Javascript coding/experimenting using command line offering history, completion, help, debug, etc.? I found <a href="http://ipython.org/" rel="nofollow">iPython</a> very useful for quick Python scripting.</p>
  
  <p>I looked at various shells like <a href="http://nodejs.org/" rel="nofollow">node</a>, <a href="https://developer.mozilla.org/en/Rhino_Shell" rel="nofollow">Rhino</a>, <a href="http://www.jsdb.org/" rel="nofollow">JSDB</a>, but their command line functionality seem to be somewhat limited.</p>