If statement question

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1

In an if statement, if I had this:

if not enabled then return end

Does it differ in any way (such as performance wise) to doing it this way

if enabled then
 -- do stuff
end
2

It’s mostly based on preference/ case by case coding. The first instance has a return statement included, meaning the outer function will end - whereas in the second instance the rest of the function will continue as normal following the if statement.

i.e

function example()
  if not  enabled then return end
  doSomething
  somethingElse
end

function example2()
  if enabled then
    doSomething
  end
  somethingElse
end

somethingElse only runs if the condition is met in the first instance, whereas somethingElse will always run in the second instance.

3

No, there’s no difference besides the way it is written. They will both do the same exact thing, but I would prefer using the 2nd option for organization purposes.

4

When you have a long list of checks, doing

if not plr then
    return "you are not real"
end

if not plr.Character then
    return "you are in the void"
end

if not plr.Character:FindFirstChild("Humanoid") then
    return "you are dead"
end

-- do stuff

is more readable than doing

if plr then
    if plr.Character then
        if plr.Character:FindFirstChild("Humanoid") then
            -- do stuff
        else
            return "you are dead"
        end
    else
        return "you are in the void"
    end
else
    return "you are not real"
end

(it becomes hard to tell which else belongs to which if (especially if you add more ifs and add more content in those ifs))

Performance wise they are probably the same