Do the JSON keys have to be surrounded by quotes?

Question

Example: Is the following code valid against the JSON Spec?

{
    precision: \"zip\"
}

Or should I always use the following syntax? (And if

Answer 1

Yes they do. But if you need otherwise, checkout JSON5.

JSON5 is a superset of JSON that allows ES5 syntax, including:

• unquoted property keys
• single-quoted, escaped and multi-line strings
• alternate number formats
• comments
• extra whitespace

The JSON5 reference implementation (json5 npm package) provides a JSON5 object that has parse and stringify methods with the same args and semantics as the built-in JSON object.