Lua Booleans in Lua
Remarks
Booleans, truth, and falsity are straightforward in Lua. To review:
- There is a boolean type with exactly two values:
trueandfalse. - In a conditional context (
if,elseif,while,until), a boolean is not required. Any expression can be used. - In a conditional context,
falseandnilcount as false, and everything else counts as true. - Although 3 already implies this: if you're coming from other languages, remember that
0and the empty string count as true in conditional contexts in Lua.
