Jsonify Map type returned as {}

[MGibson1]

I've been having an issue with parsing JSON serialized Map<TKey, TValue> in a type-safe way.

It comes down to the fact that Jsonify<Map<TKey, TValue>> return {} instead of taking the key/value types into consideration. I would expect Jsonify to treat Maps and Records equivalently

Expected result

type JsonifyMapType = Jsonify<Map<string, string>> // JsonifyMapType = {[key: string]: string}

Actual result

type JsonifyMapType = Jsonify<Map<string, string>> // JsonifyMapType = {}

[papb]

I would expect Jsonify to treat Maps and Records equivalently

Why? JSON.stringify itself does not treat them equivalently:

const x = new Map([['a', 1], ['b', 2]]);
const y = { a: 1, b: 2 };
JSON.stringify(x); // '{}'
JSON.stringify(y); // '{"a":1,"b":2}'

To me, the current behavior is correct.

[MGibson1]

Well, color me surprised. I should have tested that myself, you're 100% right.