From my understanding, one can use the or operator to assign something to another value if the first value is nil. This allows us to create optional parameters for classes.
local x = nil or 5
print(x) -- 5
But if I’m making a class where one of its constructor parameters is a boolean and pass it in as false, the class attribute would default to the second possible value instead of staying as false.
local class = {}
class.__index = class
function class.new(bool)
local self = {}
self.Var = bool or true
return setmetatable(self, class)
end
In the above case, if bool were false, self.Var would be set to true even though it shouldn’t. To bypass this, I had to do something like this instead:
self.Var = bool
if self.Var == nil then
self.Var = true
end
This can get pretty messy fast for me because the classes I’m creating can have a lot of boolean constructor parameters, so is there better way of solving this problem?