This is part of the series tinker like a boss (in psysh)
Class aliasing is very simple concept, that allows you to call a class by its alas, rather than original name. It’s not very common to use aliases when writing code , for your IDE gets you covered.
If you’re working with Laravel, it’s worth mentioning that all the facades are also aliases, that’s why you have things like request, validator etc available in global namespace. this is a convention introduced by Taylor to make things a bit more expressive,but still something that your IDE does for you.