How to close the (local) Debug window/palette

Question

I have this local debug window that is so annoying

enter image description here

How can I hide it? What is the purpose of it?

Yes, you can. As a general rule, when dealing with frontend questions don't forget to specify your version and platform
You can turn it on/off with the menu entry Evaluation > Debugger
@BrettChampion I wasn't paying attention and answered without realising that we're on meta.

Mr.Wizard · Accepted Answer · 2012-06-14 14:38:08Z

up vote 4 down vote accepted

1. You may turn off this menu selection:

enter image description here

(Or uncheck Debugger to turn off the entire apparatus.)

Mathematica graphics

edited Jun 14 '12 at 14:38

answered Jun 14 '12 at 14:20

Mr.Wizard♦
59.4k790261

	What about the second part " What is the purpose of it?":) – Ajasja Jun 14 '12 at 14:21
	@Ajasja okay, updated; If you want to present a lecture on the use of a debugger be my guest. :^) – Mr.Wizard♦ Jun 14 '12 at 14:38