I want to check if an input from a chat message is a number

FiveM Resource Development Discussion
1

I’ve been working on a very basic inventory script and breathalyzer script for RP. They both function but if you put in text other than a number for a playerid it errors out, and I don’t know how to fix that.
I’m not posting the entire script here yet, but this is the part that will error out if the input is not a number

if (args[1] == “/bactest”) then
CancelEvent()
if args[2] ~= nil then
local id = tonumber(args[2])
local bac2 = bac[id]
if bac2 ~= nil then
TriggerClientEvent(‘chatMessage’, source, “Breathalyzer”, {47, 121, 239}, "This user’s BAC is: "…bac2)
else
TriggerClientEvent(‘chatMessage’, source, “Breathalyzer”, {47, 121, 239}, “This user does not have a BAC set.”)
end
else
TriggerClientEvent(‘chatMessage’, source, “Breathalyzer”, {47, 121, 239}, “Usage: /bactest [player id]”)
end
end

2 
if type(variable) == "number" then
end
1 Like
3

The args[] array is the input from a chat message, would that be a string making that statement always false?
I’ll give it a try though

4

You can use tonumber() and check if the return is nil or not.

Edit: Just realized you already use tonumber(). Just check if it is nil. As @Frazzle just posted.

1 Like
5

Try this

if args[1] == "/bactest" then
	CancelEvent()
	if args[2] ~= nil then
		if tonumber(args[2]) ~= nil then
			if GetPlayerName(tonumber(args[2])) then
				if bac[tonumber(args[2])] then
					TriggerClientEvent("chatMessage", source, "Breathalyzer", {47, 121, 239}, "This users BAC is: "..bac[tonumber(args[2])])
				else
					TriggerClientEvent("chatMessage", source, "Breathalyzer", {47, 121, 239}, "This user does not have a BAC set.")
				end
			else
				TriggerClientEvent("chatMessage", source, "Breathalyzer", {47, 121, 239}, "Usage: /bactest [player id]")
			end
		else
			TriggerClientEvent("chatMessage", source, "Breathalyzer", {47, 121, 239}, "Usage: /bactest [player id]")
		end
	else
		TriggerClientEvent("chatMessage", source, "Breathalyzer", {47, 121, 239}, "Usage: /bactest [player id]")
	end
end
2 Likes
6

Thank you, that worked!