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I found a way to auto indent when I type one of }, ; or ) using this code:

(setq mode-autoindent-list '(javascript-mode js-mode php-mode web-mode))
(defun mode-autoindent ()
  (when (and (member major-mode mode-autoindent-list) (looking-back "[});]"))
    (indent-for-tab-command)))

(add-hook 'post-self-insert-hook 'mode-autoindent)

inspired by the code in this answer on stack overflow Auto indent after inserting a semicolon or curly brace

Is there a better way, maybe build in mode?

  • I'm not sure about what specifically happens in these modes, but you could try modifying the value of electric-indent-chars while these modes are active and electric-indent-post-self-insert-function should take care of it for you. – wvxvw Jan 29 '17 at 15:14
  • @wvxvw Forget about electric-indent-mode, that's exactly what I've needed. – jcubic Jan 29 '17 at 16:02

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