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Way to set a string value to a number value?

Asked by
Green_Lime2 80
4 years ago
Edited 4 years ago

I making code that will add two numbers that are put into a TextBox's Text property and return an answer into another TextBox. The code works perfectly, but if I type in a string and click the CalculateButton, it will give this error in the output: Players.Green_Lime2.PlayerGui.ScreenGui.CalculateButton.LocalScript:15: attempt to perform arithmetic (add) on string

Is there any way to block the strings and only accept numbers? The LocalScript is inside the CalculateButton. Here's the code:

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01print("Ready for calculating")
02while true do
03    wait(0.1)
04 
05local player = game.Players.LocalPlayer
06local character = player.Character
07local playergui = game.Players.LocalPlayer.PlayerGui
08local calculatebutton = playergui.ScreenGui.CalculateButton
09local textbox1 = playergui.ScreenGui.TextBox1
10local textbox2 = playergui.ScreenGui.TextBox2
11local answerbox = playergui.ScreenGui.AnswerBox
12 
13    calculatebutton.Activated:Connect(function(activated)
14        if activated then
15            answerbox.Text = textbox1.Text + textbox2.Text
16            end
17        end)
18    end

2 answers

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0
Answered by
zadobyte 692 Moderation Voter
4 years ago

You would wanna make use of the tonumber function. It will convert strings to numbers (assuming those strings are made up of only numbers, or else it will return nil.)

view source
1answerbox.Text = tonumber(textbox1.Text) + tonumber(textbox2.Text)
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Answered by
zane21225 243 Moderation Voter
4 years ago

An easy solution would be to use tonumber.

0
I knew about the tonumber() function and I was using it wrongly in my code. Thanks for the help guys! Green_Lime2 80 — 4y

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