How to detect player level change if level is stored in table?

I want to know how to detect a players level increasing so that I can update UI etc with the new level.
Here is how I hold the players level (via table).

pDM.MainInventory={
	['Level'] = 0;
}

(obviously not the full table is listed but you get the point)

Assuming that you level up the player in a server script, you can use a remote event to communicate that a player has leveled up. They are typically put in replicated storage when communicating from server to client and vice versa

For example:

-- server script

local event = game.ReplicatedStorage.RemoteEvent

LevelPlayer(plr) -- arbitrary function that would level up the player
event:FireClient(plr)
-- ui script

local event = game.ReplicatedStorage.RemoteEvent

-- emits an event called 'OnClientEvent' when firing to the client
event.OnClientEvent:Connect(function()
-- code to update ui accordingly
end)
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