| define(function () {  // Internal function to obtain a nested property in `obj` along `path`.  function deepGet(obj, path) {    var length = path.length;    for (var i = 0; i < length; i++) {      if (obj == null) return void 0;      obj = obj[path[i]];    }    return length ? obj : void 0;  }  return deepGet;});
 |