ElectronMessagePortMain.once method

ElectronMessagePortMain › once

Unofficial

Registers a one-time listener for the close event.

Signature:

once(event: "close", listener: () => void): this

Parameters:

Parameter	Type	Description
event	"close"	The event name.
listener	() => void	Called when the port closes.

Returns: this — This message port instance.

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Unofficial

Registers a one-time listener for the message event.

Signature:

once(event: "message", listener: (messageEvent: ElectronMessageEvent) => void): this

Parameters:

Parameter	Type	Description
event	"message"	The event name.
listener	(messageEvent: ElectronMessageEvent) => void	Called with the received message event.

Returns: this — This message port instance.

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