Conditionals

Default Values

Smart use of the 'or' operator instead of nil checks increases readability.

BAD

    if name then
        return name
    else
        return "John Doe"
    end

GOOD

    return name or "John Doe"

Don't write "if true then return true"

Just use ternary operators to evaluate the expression

BAD

    if name == "mark" or name == "stacy"
        return true
    else
        return false
    end

GOOD

    return name == "mark" or name == "stacy" -- Will return true if name is either mark or stacy