Help with numbers & strings?

You can check by using the 'type' method, the type method will identify the identifier type of what it is, for example, if you were to use the following code;

local str = "I'm a sting!"
print(type(str)) --Output: string

As you'll see, after firing that code, it has printed string in the Output because str is a string identifier, this same thing will happen for Numbers and Booleans aswell;

local bool = true
print(type(bool)) --Output: boolean

local num = 1
print(type(num))

So, to answer your question, this can also be used in if then end statements to identify certain identifiers, like for example;

local identifier = "string" --A string :o

if type(identifier) == "number" then --If 'identifier' is a 'number' then
--Code
return identifier --Returns the number
elseif type(identifier) == "string" then --Elseif 'identifier' is a 'string' then
--Code
return #identifier --Returns the number of Characters in a string
elseif type(identifier) == "table" then --Surprised? it even works with 'table''s! :D
--Code
return #identifier --Returns the number of string/numbers/ect. in a table
end

Hope this helped!