How to use PowerShell alias cd a spec directory?

To make sure this stays as a permanent alias you can do the following in powershell:

notepad $profile

and paste the following in the file (at the end):

function gotoa { set-location "F:\a" }
new-alias cdt gotoa

Aliases can't use parameters, so define a function instead.

function cdt { set-location "F:\a" }