How to deeply map object keys with JavaScript (lodash)?

Question

https://lodash.com/docs#mapKeys

Is it possible to map an Object\'s keys deeply using Lodash? If not, is there another library providing this functionality (if grouped wi

Answer 1

Not a best one as per performance efficiency, but If you want to skip recursion part from your side and want to keep the code clean and simple then you can stringify it to json and use JSON.parse with additional parameter (callback) and there you can transform the keys with lodash.

JSON.parse(JSON.stringify(obj), (k, v) => _.isObject(v) ? _.mapKeys(v, (_v, _k) => _k + '_hi') : v)

Here is an working example:

let obj = { a: 2, b: { c: 2, d: { a: 3 } } };
let mappedObj = JSON.parse(JSON.stringify(obj), (k, v) => _.isObject(v) ? _.mapKeys(v, (_v, _k) => _k + '_hi') : v)
console.log(mappedObj)