score:1
Accepted answer
parse your string to js object, than parse it to string to with new lines.
console.log(json.stringify(json.parse('{\"a": 1, \"b\":\"2\"}'), null, 2));
score:0
before just running below code you should make a small change.
"{\"a": 1, \"b\":\"2\"}" ->
"{\"a\": 1, \"b\":\"2\"}"
const stringifiedjson = "{\"a\": 1, \"b\":\"2\"}";
const result = json.parse(json);
console.log(result);
Source: stackoverflow.com
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