you can put questionmarks by types:
function foo (number: number | string? --[[<-- this]])
local number = tonumber(number)
return number * 2
end
what do they do?
✓ ANSWER ACCEPTED
roblox typechecking question marks meaning?
1 answer
✓ Accepted answer
optional. can be nil or whatever else.
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1 comment
so that's how you make optional variables??? thanks!