A full-featured javscript shell based on johnson a.k.a mozilla’s tracemonkey. Since this uses ripl, it comes with most irb functionality: a global config(~/.johnsonrc), autocompletion (very basic currently), history (~/.johnson_history) and multi-line support.

Install the gem with:

sudo gem install ripl-johnson

$ ripl johnson

# tab completion
js>> f[TAB]
false     finally   for       function
js>> fu[TAB]
js>> function

# multi-line support (Ctrl-C to break out of incorrect multi-line)
js>> function ohai() {
   > print("This ain't no browser");
   > }
=> nil

>> o[TAB]
>> ohai
>> ohai()
This ain't no browser
=> nil

• Add autocompletion for js methods!

• Remove ruby autocompletions from bond

• Add commandline option to autoload js files from rails projects

• Add commandline option for loading files (like johnson executable)

• Add rb and js functionality (like johnson executable)

• Add _ for last js result