Fix invalid JSON files

You have bunch of improperly formatted JSON files and want an automated way to fix them.

Install hjson via

npm i -g hjson

Lets assume we have the file:

a.json

// This file contains comments which are not allowed in JSON
[
  {id: 1, moo: true}, // missing quotes
  {"id": 2}, // invalid trailing commas
]

To fix just pipe it into hjson:

$ cat a.json | hjson -j
[
  {
    "id": 1,
    "moo": true
  },
  {
    "id": 2
  }
]

You can then pipe the result into other CLI tools such as fx for further analysis:

$ cat a.json | hjson -j | fx 'map("id")'
[
  1,
  2
]