Checking if string is number?

Help and Feedback Scripting Support
#1

Hello devs! Im working on custom commands and wanted to know if there’s a way to check if string is only number!

Hope you can help me!

Have a great day!

#2

You can use tonumber using the string as an argument, if the string is not a full number, then it iwll return nil, if it is a full number, it returns the string converted to a number

local num = tonumber("10")
if num then
   print("Full number")
end

local num2 = tonumber("10jh")
if num2 then
    print("Full number")
end

Only the first FUll number will print because the other results in nil since it’s not a full strng number

#3

I need to know if string is ANY number.

#4

What do you mean by any number? tonumber will work for any number you give, even if you give it 101010502963868369087 as a string, it will still work for that so long as there’s no letters or punctuation marks

#5

Any of the numbers, like 12345678 etc.

#6

Yes, tonumber will still work for those numbers, it’ll work for any number you give it , even if it’s extremely high or a negative I believe. If there’s anything that isn’t a number in the string, it returns nil, so if you just check if the result is not nil, then that means a full number was given

#7

No, I am making command like :settime 1 50 and i need to know if string is any of numbers you can write

#8

Oh wait, i get it now… You need to do tonumber(args[1]) and check if its not nil!

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#9

Thanks for help! You are always my life saver!

1 Like