How do i make a Dissapearing Gui?

I'm trying to have a script what makes the frame disappear when the button is clicked but it doesn't work. It doesn't work

 1 do button.MouseButton1Click:connect(function()
 2   frame.Visible = not frame.Visible
 3 end

when I press the button the frame just stay there.

Thanks but it says button and frame are unknown.

Use the code blocks for code, and don't bother doing the line numbers. the code block does it for you.

Answer:

All Gui objects (except the Guis themselves) have a bool property called Visible. So:

button.MouseButton1Down:connect(function()
	frame.Visible = false
end) -- also, these types of functions have a ')' after the end

Also, you need to define everything (like the button) that you will use in the script.

Answer : The button and the frame are not defined so

button = script.Parent --Make sure that the script is in the button
frame = script.Parent.Parent.FrameName --Replace the name of the frame here
button.MouseButton1Click:connect(function()
frame.Visible = false
end

If you would like it to reappear when they click it again, then

button = script.Parent
frame = script.Parent.Parent.FrameName -- Replace the name of the frame here
function onClicked()
if frame.Visible == true then
	frame.Visible = false
else
	frame.Visible = true
end
button.MouseButton1Click:connect(onClicked)

It's as easy as that

Here:

local b=script.Parent
local fr=script.Parent.Parent.Frame -- Replace Frame with the Frame's name
b.MouseButton1Down:connect(function()
	fr.Visible=not fr.Visible
end)