Correct Indentation of a buffer with js2-mode in Emacs

Question

在Emacs中使用js2-mode编辑javascript文件时，有没有办法自动纠正整个缓冲区（或区域）的缩进？

Answer 1

CM-\\ runs indent-region . If you want to indent the entire buffer, you can do so with Cx h ( mark-whole-buffer ) followed by CM-\\ .

Answer 2

I use this regularly to clean up things

 (defun cleanup-buffer ()
   "Perform a bunch of operations on the whitespace content of a buffer."
   (interactive)
   (indent-buffer)
   (untabify-buffer)
   (delete-trailing-whitespace)
   (delete-trailing-blank-lines))

 (global-set-key (kbd "C-c n") 'cleanup-buffer)

UPDATE:
to be precise answer for your question. try Mx indent-buffer