How to toggle a while loop/ reuse a return function?

Please note my scripting abilities are still limited.

The code I have posted below places a table into a fake array and randomly displays a table key and its value, it will continuously search through the entire array until a desired number is found.

Upon finding a desired number the script intentionally breaks its loop cycle.

Unfortunately, I would like to be able to reuse this function at all times and trigger it when necessary.

I suspect that the code needs some rewritting and you can't simply use an if statement trigger because of the while loop breaking. What would my best approach be?

Player1Grid = {
    ["A1"] = 1,
    ["A2"] = 2,
    ["A3"] = 3,
    ["A4"] = 4,
    ["A5"] = 5,
    ["A6"] = 6,
    ["A7"] = 7,
    ["A8"] = 8,
    ["A9"] = 9,
    ["A10"] = 10
}

while wait() do -- Perform loop and wait function to prevent fatal lag.
    local function GenerateRandomIndex()
    local Array = {} -- Prepare a fake array.

    for index in pairs(Player1Grid) do -- Gather table information.
        table.insert(Array, index) -- Insert the index into array table.
    end

    local RandomNumber = math.random(1, #Array) -- Get a random number of array.
    return Array[RandomNumber], Player1Grid[Array[RandomNumber]] -- Return both the name and number.
end

    local ObjName, ObjValue = GenerateRandomIndex() -- Assign appropriate data to the variables.

    if ObjValue == 3 then -- Compare the result with a string value.
        print("The random grid tile is", ObjName, "The value is", ObjValue)
        return -- If the desired value is found print it and break the loop.
        else
        print("The selected grid tile was invalid, trying again.")
    end
end