I didnt post that soln, but if you just started learning javascript, this is the most easiest to understand.

Definitely not a 6kyu problem. This Kata should ideally be 8 kyu, 7kyu at best.

Because you don't need the quotes in the regular expression.

You're doing several things wrong there, please, review the basics first and then come back, trying to code like that is both painful and frustrating. The ifs aren't needed at all (and they're wrong), you only have to use the argument of the function player and return one property of it, you're accessing that property wrong too. I can't help anymore without giving out the solution. If after that you can't solve it, forfeiting the kata and seeing other users's solutions is an option.

No, because an object will never be equal to one of its properties. Delete the ifs and read how to access an object property, that's wrong too.

how is this easy

This is the initial code:

function getCollege(player){
//code here

}

As you can see the function receives only one argument. And that argument is an object. It's in the description:

Create a function, called getCollege, that takes in an object of an nba player, and returns the college that the player went to