Install

$ npm i atexit.js

Functions

atexit.register(fn, ...args)

Registers a function to the atexit call stack to be called at process termination.

• fn: function to be added to atexit call stack.
• ...args: arguments to be passed to fn.

atexit.unregister(fn)

Unregisters all references of a function from the atexit call stack.

• fn: function to be removed from the atexit call stack.

atexit._clear()

Clears all functions from the atexit call stack.

atexit._run_exitfuncs()

Calls all functions in the atexit call stack then clears it.

atexit._ncallbacks()

Returns number of functions in the atexit call stack.

Examples

Register

import * as fs from 'node:fs';
import * as atexit from 'atexit';

const file = '/tmp/example.txt';

atexit.register(fs.appendFileSync, file, '1\n');
atexit.register(fs.appendFileSync, file, '2\n');
atexit.register(fs.appendFileSync, file, '3\n');

File Contents:

3
2
1

Unregister

import * as fs from 'node:fs';
import * as atexit from 'atexit';

const file = '/tmp/example.txt';

atexit.register(fs.appendFileSync, file, '1\n');
atexit.register(fs.appendFileSync, file, '2\n');
atexit.register(fs.appendFileSync, file, '3\n');

atexit.unregister(fs.appendFileSync);

atexit.register(fs.appendFileSync, file, '4\n');
atexit.register(fs.appendFileSync, file, '5\n');

File Contents:

5
4

Maintainers

@BChristieDev

Contributing

PRs accepted.

License

MIT © Brandon Christie