RealSignal.Once

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

Syntax

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

Arguments

Name	Type	Required	Description
`signal`	`RealSignal`	Yes	Signal object returned by Signal.new.
`callback`	`(....any) -> ()`	Yes	Function called at most once for this connection.

Returns

Name	Type	Description
`connection`	`RealSignalConnection`	Connection object with Disconnect.

Types

RealSignal

Signal object returned by Signal.new.

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

RealSignalConnection

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

Name	Type	Required	Description
`Disconnect`	`() -> ()`	Yes	Disconnects the connection.

Example

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")

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Example

​Syntax

​Arguments

​Returns

​Types

​RealSignal

​RealSignalConnection

​Example

Syntax

Arguments

Returns

Types

RealSignal

RealSignalConnection

Example