Problem with loop in modulescript

[younis2811 (RanD0m_333)]

Hello everyone,

Since I dont use Lua I get into these problems alot and I am looking for some help. I am making this dialog system where a list of string is given as parameter and i want to loop throught the list and the string but I get the error "attempt to get length of a number value ".

I would appriciate it if someone helped me with this problem

function Dialog.Type(TextList: "list of strings", Speed: "number", Pause: "number")
	local Gui = Dialog.Get_GUI()
	local TextLabel = Gui:FindFirstChild("TextBox")
	for Text = 1, #TextList do
		for Letter = 1, #Text, 1 do
			TextLabel.Text = string.sub(Text,1,Letter)
			wait(Speed)
		end
		if Pause then
			wait(Pause)
		end
	end
end

return Dialog

Thanks for helping!

[JAcoboiskaka1121 (Skellyton)]

Are you passing a table of strings? what do you mean by a list?

[younis2811 (RanD0m_333)]

sorry i ment a table instead of a list

[Wigglyaa]

You were trying to get the length of Text, which on your first for loop is a number.

Try this:

function Dialog.Type(TextList: "list of strings", Speed: "number", Pause: "number")
	local Gui = Dialog.Get_GUI()
	local TextLabel = Gui:FindFirstChild("TextBox")
	for Text = 1, #TextList do
		for Letter = 1, string.len(TextList[Text]), 1 do
			TextLabel.Text = string.sub(TextList[Text],1,Letter)
			wait(Speed)
		end
		if Pause then
			wait(Pause)
		end
	end
end

return Dialog

[Abroxus]

If TextList is an array then you are using #TextList correctly on the first for loop, but for the second for loop, why are you trying to get the length of #Text which is a number value of the for loop?

[JAcoboiskaka1121 (Skellyton)]

@younis2811

for Letter = 1, #Text, 1 do

Im assuming the error happens here?

The thing is, the Text is the index, not the value, so your looping the table with an index not a value, so you would have to change it to use I,v in pairs() or find the value using the index, heres an example:

function Dialog.Type(TextList, Speed, Pause)
    local Gui = Dialog.Get_GUI()
    local TextLabel = Gui:FindFirstChild("TextBox")
    
    for i = 1, #TextList do
        local Text = TextList[i]
        for Letter = 1, #Text do
            TextLabel.Text = string.sub(Text, 1, Letter)
            wait(Speed)
        end
        
        if Pause then
            wait(Pause)
        end
    end
    
    return Dialog
end

[younis2811 (RanD0m_333)]

This made the error go away but instead it prints the index and not the string. But thanks

[younis2811 (RanD0m_333)]

I am used to using python and this was the first time that came to me when looking up for a tutorial. But i see where you are coming from and thanks for that.