Attempt to perform arithmetic (sub) on Boolean and number

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#21

Just included it in the script.

#22

I can’t find it, I mean IDK what else to say other than to make sure val is a number and not a string.

#23

Val is a number lol

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Assets = require(ReplicatedStorage.Databases.Assets)
local ValueBox = {}
ValueBox.__index = ValueBox
local bankValues = {Bank = 0, Cash = 0}
local bankFrame = ValueBox.new(Assets.IconRect.Bank)
local cashFrame = ValueBox.new(Assets.IconRect.Cash)
#24

Before line 77, create a line that says

if typeof(val) == “number” then print(“is number”) end

Now check if it prints “is number”

Also since I’m on iOS my quotes are different characters than the normal quotes for some reason.

#25

It printed out the “is number”

#26

Are you still getting the same error?

#27

Then it isn’t val, it’s the other one. Do the same but for the other variable.

#28

If I remove:

if typeof(val) == "number" then 
				print("is number") 
			end

It’ll add back the error: attempt to perform arithmetic (sub) on Boolean and number

#29

Place this before line 77 and see what’s outputted.

#30

On line 77, change val to tonumber(val)

If no error, then it succeeded.
Is error is that it’s nil, then val was a boolean.

#31

Why would I want to change val to tonumber(val) on line 77?

if:

else
			local diff = val - bankValues.Cash
			bankValues.Cash = val
			cashFrame:SetValue("$" .. ShortenNumber(bankValues.Cash), diff)
			cashFrame:SetExactValue("$" .. bankValues.Cash)
		end
#32

Because you are performing an arithmetic operation?

#33

It prints out the number of money/cash in my bank value and cash value in-game:

image
image

If I add in:

print(val)
print(bankVales.Bank)

It would get rid of the error, but if I remove that, it’ll bring back the error.

#34

Do what roblox said and try the tonumber() thing. It might be passed in as a string which is why it isn’t working.

#35

Ah okay, that worked. I’ve seen you converted string to number object.

Because LUA converts strings automatically to a number, however, it errored out, resulting in using the tonumber() function to convert it from a string to number.

Edit: NVM it didn’t work I think

Edit 2: Regard that, it worked.

1 Like
#36

Did you just copy from new haven county?