Writing html in jade is nice, but I always forget to compile it. Add this piece of code into your .emacs file, your emacs will compiles jade into html after save. 用 jade 寫 html 是件很棒的事, 但我老是忘記編譯它. 把這段 code 加入 .emacs, emacs 在存檔時會自動替你編譯.

compile-jade-on-save.el

;; auto compile jade file after save
(add-hook
 'after-save-hook
 (lambda ()
   (if (string= (file-name-extension (buffer-file-name)) "jade")
       (if (= (shell-command
               (concat "jade --pretty " (buffer-file-name)))
              0)
           (message (concat (buffer-file-name) " just saved and compiled into html"))))))