Lua Tutorial => Conditional contexts

Example

Conditional contexts in Lua (if, elseif, while, until) do not require a boolean. Like many languages, any Lua value can appear in a condition. The rules for evaluation are simple:

false and nil count as false.

Everything else counts as true.

if 1 then
  print("Numbers work.")
end
if 0 then
  print("Even 0 is true")
end

if "strings work" then
  print("Strings work.")
end
if "" then
  print("Even the empty string is true.")
end

PDF - Download Lua for free

Previous Next

Lua

Fastest Entity Framework Extensions

Example

Got any Lua Question?

Lua

Lua Booleans in Lua Conditional contexts

Fastest Entity Framework Extensions

Example

Got any Lua Question?