Need help with the node editor.

I create a node, then I realize I don’t need it, so I want to remove it. Problem is, I can’t find a way to delete it! I can’t even remove node links! I got a bunch a junk in the node window and I can’t get rid of it!
What do I do?!

Wait, never mind. I just discovered the x button. Yay, lol.

or you could have pressed the Delete key on your keyboard