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I am working with GNU Emacs 23.1.1. When working with a .json file it is treated in the Fundamental mode:

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How can I have the json file treated in the json mode?

I note that GNU Emacs 24.3.1 opens json files as Javascript which already allows formatting.

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  • Does this answer your question? Make emacs automatically open binary files in hexl-mode – Drew Feb 11 '20 at 16:21
  • @Drew the difference between my question and emacs.stackexchange.com/questions/10277/… is technically involved therefore my question deserves a separate answer. – Viesturs Feb 11 '20 at 17:20
  • What have you tried to do? Explain why using Emacs-24.3 in javascript-mode is not good enough – Stefan Feb 11 '20 at 23:14
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    @Viesturs You could still install it as a container, an appimage or compile it from source yourself without root. – Qudit Feb 12 '20 at 17:10
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    @Viesturs - When installing or upgrading emacs on host is not a viable option, I use emacs+tramp on my local machine to login to remote host and edit the file remotely. For example, If I do C-x C-f /scp:username@remote-hostname:/path/to/file RET then emacs will login via SCP to remote-hostname as username and open /path/to/file inside emacs on my local machine. I use this feature everyday. – Melioratus Feb 21 '20 at 15:38
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Install json-mode might be the simplest.

In my set up (I use straight.el)

simply

(use-package json-mode)
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