While Condition Do Loops

You most commonly see them written as while true do. They loop until the condition is not true (false or nil). When the condition is not met, it'll break automatically.

--Loops until the condition is not true.
while true do --True will always be true; loops forever
    print("Hi")
    wait(1)
end

local a, b = 10, 13

while a < b do --Breaks once a is greater than b.
    a = a+1
    b = b+0.5
end

Coroutines

A coroutine is basically like creating a whole new script inside your script. That way, if you have any yields in your coroutine, it doesn't affect the rest of your script and the coroutine yields independent of whatever is going on in the rest of your actual script. How to make a coroutine:

local CountDown = coroutine.wrap(function()
    for i = 10,0,-1 do
        print("Countdown: "..i)
        wait(1)
    end
end)

CountDown()
wait(3)
print("Interruption :D")

Countdown: 10 Countdown: 9 Countdown: 8 Interruption :D Countdown: 7 ...

There are 2 waits in the script. Neither of them interrupt each other.

local activated = false
local MyLoop = coroutine.wrap(function()
    activated = not activated --If false, it's now true (and vise versa)
    while activated do
        --Your Code Here
        wait(1) --A wait is necessary when you are looping many times.
    end
end)

ToggleButton.MouseButton1Click:Connect(function()
    MyLoop() --Calls the coroutine
end)

Hope it helps!

Here's an idea I came up with.

local CanLoop = false 

ToggleButton.MouseButton1Click:Connect(function()
    if CanLoop then 
        CanLoop = false 
    else
        CanLoop = true 
    end
end)

while true do 
    wait()
    if CanLoop then 
        print("loop running")
    end
end

To toggle anything ever. A two way toggle, there is this cool thing called a "Boolean" This boolean is a true or false value which can change depending on what you tell it to do.

To create a loop in an event depending on a bool, try this out!

local a = true
ToggleButton.MouseButton1Click:Connect(function()
    repeat wait()
    -- run code
    if a == true then
        -- you can make it false or run other code while a is true.
        -- if you insert a = false here then the loop stops.
    end
    until a == false
end)

If this helped, click the Answer Button C: Goodbye!