javascript environment in emacs with node

node.el

;; http://stackoverflow.com/questions/6605058/what-are-these-shell-escape-characters

;; the following assumption:
;; * using nodebrew
;; * major version of emacs is above 24

;; ----
;; A. Do package-install js-comint
;; B. Create shell file `node2' at ~/.nodebrew/current/bin/node2 and chmod +x node2
#!/bin/sh
env NODE_NO_READLINE=1 node $@

;; C. Add the following code in .emacs.d/init.el
;; js-comint                                                                                                    
(require 'js-comint)
(setq inferior-js-program-command "node2")
(add-hook 'js2-mode-hook '(lambda ()
                            (local-set-key "\C-x\C-e" 'js-send-last-sexp)
                            (local-set-key "\C-\M-x" 'js-send-last-sexp-and-go)
                            (local-set-key "\C-cb" 'js-send-buffer)
                            (local-set-key "\C-c\C-b" 'js-send-buffer-and-go)
                            (local-set-key "\C-cl" 'js-load-file-and-go)
                            (local-set-key "\C-c\C-r" 'js-send-region)
                            ))

;; try to boot emacs and M-x run-js command.