Hi there, I know in C, using != operator with 1 would return 0, using it with 0 would return 1. Is this possible in Lua-U (or at least vanilla) such as how not true would equal false and vice versa?
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No, since the not operator cannot be overloaded using metamethods and besides you can’t use metatables at all on any type other than table (like numbers) . Are you porting C code that needs this kind of behavior or is it just a matter of how you’re used to working?
Nope. Use this instead:
local x = 1
print(1 - x) -- 1 turns to 0, 0 turns to 1
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Nope. Numbers and booleans are separate concepts in Lua (and Luau by extension). In Lua 1 ~= true, however you can use the ~= operator to check if something is not equal.
You can also use if-then-else or ternary-like comparisons to switch between the two; e.g.
local x = num == 1 and 0 or 1
local y = if num == 1 then 0 else 1
1 - 0 is 1,
1 - 1 is 0.
It’s just math that does the work.
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in C# it is:
1 != 0
I Lua it is:
1 ~= 0
More info here:
Logically, not 1 becomes false. false == 0 becomes false. Typing in Lua and Luau is not like C.
The only false truth values in Lua is nil and false as far as I know.
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