Once

Creates a one-time signal connection that auto-disconnects after first fire and is managed by the Vault.

TypeScript

const part = new Instance("Part")

const connection = vault.Once(part.Touched, () => {
    print("This will only print once")
})

vault.Clean() // Ensures cleanup if never fired

Luau

local part = Instance.new("Part")

local connection = vault:Once(part.Touched, function()
    print("This will only print once")
end)

vault:Clean() -- Ensures cleanup if never fired

Parameters

Parameter	Type	Description
signal	AnySignal<T>	Signal to connect to
callback	(...args: T) => void	Function to call once

Returns

Connection - The created connection (auto-added to vault)

Behavior

• Fires only once, then automatically disconnects
• Automatically removes itself from vault after firing
• Still tracked by vault until fired (for cleanup)