A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
But if you want magstorey to get javascripts again just download Unity 2017.1 or older.
They had deleted javascript from Unity 2017.2 Beta since that then, Unity is not going to add Javascripts on upcoming updates but you know C#...