Alternative to lodash get method _.get()

lodashGetAlternative.js

function get(obj, path, def) {
	var fullPath = path
		.replace(/\[/g, '.')
		.replace(/]/g, '')
		.split('.')
		.filter(Boolean);

	return fullPath.every(everyFunc) ? obj : def;

	function everyFunc(step) {
		return !(step && (obj = obj[step]) === undefined);
	}
}