@nknahom/lotide/findKey.js

Lotide is mini clone of the Lodash (https://lodash.com) library for learning JavaScript. What is Lodash? Lodash is a library that makes JavaScript easier by taking the hassle out of working with arrays, numbers, objects, strings, etc.

const findKey = (object, callback) => {
  const keys = Object.keys(object);
  for (let key of keys) {
    if (callback(object[key])) {
      return key;
    }
  }
};

module.exports = findKey;