internal.Duplex.prototype.once - node__stream.d.ts - Node

method internal.Duplex.prototype.once

```typescript import { internal } from "node:node__stream.d.ts"; ```



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

Parameters



event: "close"



listener: () => void

this



Duplex.prototype.once(event: "data",
listener: (chunk: any) => void,
): this



event: "data"



listener: (chunk: any) => void

this



Duplex.prototype.once(event: "drain",
listener: () => void,
): this



event: "drain"



listener: () => void

this



Duplex.prototype.once(event: "end",
listener: () => void,
): this



event: "end"



listener: () => void

this



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



event: "error"



listener: (err: Error) => void

this



Duplex.prototype.once(event: "finish",
listener: () => void,
): this



event: "finish"



listener: () => void

this



Duplex.prototype.once(event: "pause",
listener: () => void,
): this



event: "pause"



listener: () => void

this



Duplex.prototype.once(event: "pipe",
listener: (src: Readable) => void,
): this



event: "pipe"



listener: (src: Readable) => void

this



Duplex.prototype.once(event: "readable",
listener: () => void,
): this



event: "readable"



listener: () => void

this



Duplex.prototype.once(event: "resume",
listener: () => void,
): this



event: "resume"



listener: () => void

this



Duplex.prototype.once(event: "unpipe",
listener: (src: Readable) => void,
): this



event: "unpipe"



listener: (src: Readable) => void

this



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



event: string | symbol



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

this