How to detect how many players there are in a game?

There is a function of Players which is :GetPlayers(). It returns an array of all the players in the game. This can be used in conjunction with the unary length operator #. The length operator can be used to get the length of a table or string. The length of the table is however many elements there are in it.

lua print(#game:GetService("Players"):GetPlayers());

I believe there are 2 ways to go about this There is a built-in function

#game.Players:GetPlayers()

and

#game.Players:GetChildren()

I'd recommend using the built-in function which I believe is just an alternative of "GetChildren"