Function to get a value from an object regardless of the object's depth

getObjValue.js

/**
 *
 * @param {Object} obj - the object you want to get a value out of
 * @param {Array | String} path - the path to the  value, can either be an array `['a', 'b', 'c']` of keys or 
 * 									string using dotnotation `a.b.c`
 * @param {*} [defaultValue=undefined] the value you want to return if the key is not found in the object
 */
const getObjValue = (obj, path, defaultValue) => {
	let checkedPath = path;
	if (!Array.isArray(checkedPath)) {
		checkedPath = checkedPath.split('.');
	}
	return checkedPath.reduce(
		(acc, key) => (acc && acc[key] ? acc[key] : defaultValue),
		obj
	);
};