Tài liệu Real

Cú pháp

RealSignal.Once(signal: RealSignal, callback: (....any) -> ()): RealSignalConnection

Đối số

Tên	Kiểu	Mô tả
`signal`	`RealSignal`	Signal object returned by Signal.new.
`callback`	`(....any) -> ()`	Function called at most once for this connection.

Giá trị trả về

Tên	Kiểu	Mô tả
`connection`	`RealSignalConnection`	Connection object with Disconnect.

Mô tả

Connects a callback that is disconnected before its first callback invocation. The callback receives the arguments passed to Fire.

Goi voi 2 parameter: signal, callback. Bang arguments giai thich gia tri nao bat buoc va gia tri nao chi tinh chinh hanh vi.

Tra ve connection (RealSignalConnection). Dung bang returns de tach gia tri thanh cong, ket qua nil va loi co the xu ly.

Ví dụ

Connect a callback that runs at most once.

local signal = Signal.new()

signal:Once(function(value)
    print(value)
end)

signal:Fire("first")
signal:Fire("second")

Kiểu

RealSignal

Signal object returned by Signal.new.

Connect (callback: (...any) -> ()) -> RealSignalConnection Adds a callback that runs when Fire is called.Once (callback: (...any) -> ()) -> RealSignalConnection Adds a callback that is disconnected before its first callback invocation.Wait () -> ...any Yields until Fire resumes the waiter with the fired values.Fire (...values: any) -> () Runs connected callbacks and resumes waiters with the provided values.

RealSignalConnection

Connection object returned by RealSignal.Connect and RealSignal.Once.

Disconnect () -> () Disconnects the connection.