init.el

;;; change back-up folder directory
;;; (setq backup-directory-alist '(("." . "~/.emacsBackups")))

;;; no backup files
(setq make-backup-files nil)

;;; use js-mode for .js/json files
(add-to-list 'auto-mode-alist '("\\.json$" . js-mode))

;;; bind meta key to option
(setq mac-option-key-is-meta t)

;;; switch C-h with C-x ? so that C-h is Backspace and C-x ? is help
(global-set-key [?\C-h] 'delete-backward-char)
(global-set-key [?\C-x \?] 'help-command)

;;; add line numbers
(global-linum-mode t)

;;; color
(setq linum-format "%4d|")
(setq mode-line-format
      (list
       ;; value of `mode-name'
       "%m: "
       ;; value of current buffer name
       "buffer %b, "
       ;; value of current line number
       "line %l "
       "-- user: "
       ;; value of user
       (getenv "USER")))

(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(default ((t (:background "color-234"))))
 '(cursor ((t (:foreground "pink"))))
 '(linum ((t (:background "color-237" :foreground "yellow")))))