Emacs integration

bard edited this page Nov 19, 2011 · 8 revisions

Download moz.el and place it in Emacs’ load-path. Alternatively, place it in any directory (e.g. “/home/user/emacsfiles”) then add that directory to the load-path, as follows:


    (add-to-list 'load-path "/home/user/emacsfiles")

moz.el contains a major mode for direct interaction with MozRepl in an interaction buffer (as with telnet) and a minor mode for sending code portions or whole files from other buffers.

Add this to your .emacs file:


    (autoload 'moz-minor-mode "moz" "Mozilla Minor and Inferior Mozilla Modes" t)

    (add-hook 'javascript-mode-hook 'javascript-custom-setup)
    (defun javascript-custom-setup ()
      (moz-minor-mode 1))

Restart Emacs, and every time you open a Javascript file, you will now have the following keybindings available:

  • C-c C-s: open a MozRepl interaction buffer and switch to it
  • C-c C-l: save the current buffer and load it in MozRepl
  • C-M-x: send the current function (as recognized by c-mark-function) to MozRepl
  • C-c C-c: send the current function to MozRepl and switch to the interaction buffer
  • C-c C-r: send the current region to MozRepl

In the interaction buffer:

  • C-c c: insert the current name of the REPL plus the dot operator (usually repl.)

Tips & tricks

The predictive abbreviation mode is very handy when working in Javascript source buffers.

You can’t perform that action at this time.
You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session.
Press h to open a hovercard with more details.