Deep diff between two object, using lodash/fp

diff.js

// https://gist.github.com/Yimiprod/7ee176597fef230d1451#gistcomment-2324809

const transform = _.transform.convert({
  cap: false,
});

const iteratee = baseObj => (result, value, key) => {
  if (!_.isEqual(value, baseObj[key])) {
    const valIsObj = _.isObject(value) && _.isObject(baseObj[key]);
    result[key] = valIsObj === true ? differenceObject(value, baseObj[key]) : value;
  }
};

const differenceObject = (targetObj, baseObj) => transform(iteratee(baseObj), null, targetObj);
const dO = differenceObject(this.props, nextProps);

console.log('dO', dO);