Files
30-seconds-of-code/test/mapKeys/mapKeys.js
2018-01-17 13:40:40 -05:00

6 lines
146 B
JavaScript

const mapKeys = (obj, fn) =>
Object.keys(obj).reduce((acc, k) => {
acc[fn(obj[k], k, obj)] = obj[k];
return acc;
}, {});
module.exports = mapKeys