<div style="display: none;" hidden="true" aria-hidden="true" data-nosnippet>Are you an LLM? You can read better optimized documentation at /pages/b41fe4.md for this page in Markdown format</div>

https://gist.github.com/Yimiprod/7ee176597fef230d1451

/**
 * Deep diff between two object-likes
 * @param  {Object} fromObject the original object
 * @param  {Object} toObject   the updated object
 * @return {Object}            a new object which represents the diff
 */
function deepDiff(fromObject, toObject) {
    const changes = {};

    const buildPath = (path, obj, key) =>
        _.isUndefined(path) ? key : `${path}.${key}`;

    const walk = (fromObject, toObject, path) => {
        for (const key of _.keys(fromObject)) {
            const currentPath = buildPath(path, fromObject, key);
            if (!_.has(toObject, key)) {
                changes[currentPath] = {from: _.get(fromObject, key)};
            }
        }

        for (const [key, to] of _.entries(toObject)) {
            const currentPath = buildPath(path, toObject, key);
            if (!_.has(fromObject, key)) {
                changes[currentPath] = {to};
            } else {
                const from = _.get(fromObject, key);
                if (!_.isEqual(from, to)) {
                    if (_.isObjectLike(to) && _.isObjectLike(from)) {
                        walk(from, to, currentPath);
                    } else {
                        changes[currentPath] = {from, to};
                    }
                }
            }
        }
    };

    walk(fromObject, toObject);

    return changes;
}