The first release, [[http://js-comint-el.sourceforge.net/][js-comint 0.0.1, is hosted on sourceforge]] but it has not been updated for five years.
Features
Can select node.js versions using [[https://github.com/rejeep/nvm.el][nvm.el]]
Use [[https://nodejs.org][node.js]] by default.
When loading file, detect what API to be used automatically
Based on js-comint hosted on http://js-comint-el.sourceforge.net/
Installation ** Direct download of js-comint.el Place the js-comint.el somewhere say "~/mylisp/".
Insert below code to "~/.emacs.d/init.el",
(add-to-list 'load-path "~/mylisp/") (require 'js-comint)
** Using [[http://www.emacswiki.org/emacs/ELPA][ELPA]] Insert below code to "~/.emacs.d/init.el",
(require 'package) (package-initialize) (add-to-list 'package-archives '("melpa" . "http://melpa.org/packages/")) (package-install 'js-comint) (require 'js-comint)
** Using [[https://github.com/cask/cask][Cask]] Add js-comint to your Cask file:
(depends-on "js-comint")
** Windows On window, you may need below setup:
(setq js-comint-program-command "C:/Program Files/nodejs/node.exe")
M-x run-js to create a comint buffer with the JavaScript interpreter.Please note the directory =node_modules= is automatically searched and appended into environment variable `NODE_PATH'. So you can use third party javascript without setup. For example, after =npm install --save moment=, run below command in js-comint shell,
require('moment')().format('YYYY-MM-DD');
You can =M-x js-clear= before =M-x js-send-buffer= to get clean output.
In order to get cleaner output when using NodeJS, I suggest add below setup into =.emacs=,
(defun inferior-js-mode-hook-setup () (add-hook 'comint-output-filter-functions 'js-comint-process-output)) (add-hook 'inferior-js-mode-hook 'inferior-js-mode-hook-setup t)
js-comint-program-command' string and thejs-comint-program-arguments' list to the executable that runs the JS interpreter and the arguments to pass to it respectively.E.g., the default is:
;; You can also customize `js-comint-drop-regexp' to filter output (setq js-comint-program-command "node") (setq js-comint-program-arguments '("--interactive"))
Note that in the example above, the version of node that is picked up will be the first found in `exec-path'.
But you could use Rhino or SpiderMonkey or whatever you want. E.g. to set up the Rhino JAR downloaded from https://github.com/mozilla/rhino, do
(setq js-comint-program-command "java") (setq js-comint-program-arguments '("-jar" "/absolute/path/to/rhino/js.jar"))
If you have nvm, you can select the versions of node.js installed and run them. This is done thanks to =nvm.el=. =nvm.el= is optional. So you need manually install it.
To enable nvm support, run
(js-do-use-nvm)
The first time you start the JS interpreter with run-js, you will be asked to select a version of node.js. If you want to change version of node js, run ~(js-select-node-version)~.
You can add the following couple of lines to your .emacs/init file to take advantage of key bindings for sending things to the JavaScript REPL:
; Remap Elisp's eval-last-sexp (C-x C-e) to eval JavaScript (define-key js-mode-map [remap eval-last-sexp] #'js-comint-send-last-sexp)) (define-key js-mode-map (kbd "C-c b") 'js-send-buffer))