ChildProcess.prototype.once - node__child_process.d.ts - Node

method ChildProcess.prototype.once

```typescript import { ChildProcess } from "node:node__child_process.d.ts"; ```



ChildProcess.prototype.once(event: string,
listener: (...args: any[]) => void,
): this

Parameters



event: string



listener: (...args: any[]) => void

this



ChildProcess.prototype.once(event: "close",
listener: (code: number | null,
signal: Signals | null,
) => void,
): this



event: "close"



listener: (code: number | null,
signal: Signals | null,
) => void

this



ChildProcess.prototype.once(event: "disconnect",
listener: () => void,
): this



event: "disconnect"



listener: () => void

this



ChildProcess.prototype.once(event: "error",
listener: (err: Error) => void,
): this



event: "error"



listener: (err: Error) => void

this



ChildProcess.prototype.once(event: "exit",
listener: (code: number | null,
signal: Signals | null,
) => void,
): this



event: "exit"



listener: (code: number | null,
signal: Signals | null,
) => void

this



ChildProcess.prototype.once(event: "message",
listener: (message: Serializable,
sendHandle: SendHandle,
) => void,
): this



event: "message"



listener: (message: Serializable,
sendHandle: SendHandle,
) => void

this



ChildProcess.prototype.once(event: "spawn",
listener: () => void,
): this



event: "spawn"



listener: () => void

this