JSON Basics

{
  "name": "Ada",
  "active": true
}

# A JSON document can start with an object.

[
  { "id": 1 },
  { "id": 2 }
]

# A JSON document can start with an array.

"hello world"

# A single JSON string is also valid JSON.

42

# A number can be the entire JSON document.

null

# `null` is valid as a complete JSON document.

{
  "theme": "dark"
}

# JSON requires double quotes, not single quotes.

{
  "name": "Ada",
  "role": "admin"
}

# Trailing commas make JSON invalid.

{
  "debug": false
}

# Standard JSON does not support comments.

jq . input.json

# Format JSON into a readable structure.

python -m json.tool input.json > /dev/null

# Check whether a file parses as valid JSON.