JSON ≠ JavaScript Object Literal

• JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of [...] JavaScript.
• A JavaScript object is a comma-delimited list of zero or more pairs of property names and associated values of an object, enclosed in curly braces ({}).

const objectLiteral = {foo: 'bar'}; // Object literal; not JSON
const jsonString = '{"foo": "bar"}'; // string containing JSON
const notJsonAnymore = JSON.parse(jsonString); // Object literal; not JSON
const jsonString2 = JSON.stringify(objectLiteral); // string containing JSON

• [MDN] Object literal notation vs JSON
• [Stack Overflow] What is the difference between JSON and Object Literal Notation?
• There's no such thing as a "JSON Object"