hjson is an actively used meta language created in 2014. Hjson is a syntax extension to JSON. It's NOT a proposal to replace JSON or to incorporate it into the JSON spec itself. It's intended to be used like a user interface for humans, to read and edit before passing the JSON data to the machine.

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Example code from the web:

 # hash style comments
 # (because it's just one character)

 // line style comments
 // (because it's like C/JavaScript/...)

 /* block style comments because
    it allows you to comment out a block */

 # Everything you do in comments,
 # stays in comments ;-}

Last updated August 9th, 2020

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