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Immediate.prototype.unref - timers - Node documentation
method Immediate.prototype.unref

Usage in Deno

import { Immediate } from "node:timers";
Immediate.prototype.unref(): this

When called, the active Immediate object will not require the Node.js event loop to remain active. If there is no other activity keeping the event loop running, the process may exit before the Immediate object's callback is invoked. Calling immediate.unref() multiple times will have no effect.

Return Type

this

a reference to immediate