New emacs init

.emacs

;; melpa default setting
(when (>= emacs-major-version 24)
  (require 'package)
  (add-to-list
   'package-archives
   '("melpa" . "http://melpa.milkbox.net/packages/")
   t))

;;
;;(when (not package-archive-contents)
;;    (package-refresh-contents))

;; Disable auto save
(package-initialize)

(setq auto-save-default nil)

;; Don't make backup files(~)
(setq-default make-backup-files nil)

;; Show line number
(global-linum-mode t)
;; Custom line number style
(setq linum-format "%4d  ")

;; Make tab usable
(global-set-key (kbd "TAB") 'self-insert-command)
;; backtab
(global-set-key (kbd "<backtab>") 'backward-kill-word)


;; Auto tab indentation disable
;;(when (fboundp 'electric-indent-mode) (electric-indent-mode -1))

;; Set language environment
(set-language-environment "utf-8")

;;Tab indent
(setq-default indent-tabs-mode nil)
(setq-default tab-width 2)

;; JS
(setq js-indent-level 2)
;; TS
(setq typescript-indent-level 2)
;; JSX
;; Use rjsx-mode for js files
(add-to-list 'auto-mode-alist '("\\.js\\'"    . rjsx-mode))