JSON.stringify replacer - how to get full path

Question

Replacer in below code write on console current processed field name

Answer 1

There's just not enough information available in the replacer. These two objects have different shapes but produce the same sequence of calls:

let c1 = { c1: 3, c2: 2 };
let c2 = { c1: { c2: 3 } };

const replacer = function (field, value) {
  console.log(field); // full path... ???
  return value;
};

JSON.stringify(c1, replacer);
// logs c1, c2
JSON.stringify(c2, replacer);
// logs c1, c2

You'll have to write something yourself.