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Domain.prototype.run - node__domain.d.ts - Node documentation
method Domain.prototype.run

Usage in Deno

```typescript import { Domain } from "node:node__domain.d.ts"; ```
Domain.prototype.run<T>(
fn: (...args: any[]) => T,
...args: any[],
): T
Run the supplied function in the context of the domain, implicitly binding all event emitters, timers, and low-level requests that are created in that context. Optionally, arguments can be passed to the function. This is the most basic way to use a domain. ```js import domain from 'node:domain'; import fs from 'node:fs'; const d = domain.create(); d.on('error', (er) => { console.error('Caught error!', er); }); d.run(() => { process.nextTick(() => { setTimeout(() => { // Simulating some various async stuff fs.open('non-existent file', 'r', (er, fd) => { if (er) throw er; // proceed... }); }, 100); }); }); ``` In this example, the `d.on('error')` handler will be triggered, rather than crashing the program.

Type Parameters

T

Parameters

fn: (...args: any[]) => T
...args: any[]

Return Type

T