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ChildProcess.prototype.ref - child_process - Node documentation
method ChildProcess.prototype.ref

Usage in Deno

import { ChildProcess } from "node:child_process";
ChildProcess.prototype.ref(): void

Calling subprocess.ref() after making a call to subprocess.unref() will restore the removed reference count for the child process, forcing the parent to wait for the child to exit before exiting itself.

import { spawn } from 'node:child_process';

const subprocess = spawn(process.argv[0], ['child_program.js'], {
  detached: true,
  stdio: 'ignore',
});

subprocess.unref();
subprocess.ref();

Return Type

void