{SOLVED} Attempt to compare number <= nil?

[hasoco (kan ye)]

Hello,

I am trying to make a dialogue skip where if the player is 50 counts in, they can skip it by clicking the mouse; Somehow this simple concept resulted with an error: attempt to compare number <= nil.
Whenever I do == it does not error but if I put <= or >= it errors.
Here’s the part of the script that errors:

local function typewrite(object,text,length)
		for i = 1,#text,1 do
			object.Text = string.sub(text,1,i)
			task.wait(length)
			txtam = i
			print(txtam)
		end
		task.wait(6)
		object.Text = ""
		GUI.Enabled = false
	end
	 if txtam >= 50 then -- error line
		print("50 reached/over")
		UIS.InputBegan:Connect(function(i,busy)
			if busy then return end
			if i.UserInputType == Enum.UserInputType.MouseButton1 and GUI.Enabled == true then
				speed = 0.01
				typewrite(DIALOGUE,DIALOGUETEXT,speed)
			end
		end)
	end

Note: I have not included the full script, you can ask me for the full script in the replies.

[BabyNinjaTime]

what is txtam? That is not mentioned anywhere else in the script. You are receiving this error because txtam is supposedly nil.

[hasoco (kan ye)]

It’s defined at the beginning of the script as local txtam, I have not included the full script.

[JarodOfOrbiter]

You declare txtam here but the function doesn’t run by the time the line with the error runs. Why is the if statement outside of the function?