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Is queue-microtask ESM-only? Can you require() it?

fast, tiny `queueMicrotask` shim for modern engines

Last verified Sep 9, 2026 against queue-microtask@1.2.3. Markdown · JSON

CommonJS CommonJS — require() works on every Node.js version we test

queue-microtask ships CommonJS only. require("queue-microtask") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "queue-microtask" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

What to do

  1. require("queue-microtask") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.
  2. From ES modules use the default import: import queueMicrotask from "queue-microtask"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: no types are available for queue-microtask; declare the module yourself if you need them.
Latest
1.2.3 (Mar 22, 2021)
Module format
CommonJS
Last CommonJS version
1.2.3
TypeScript types
None
Node engines
not declared
Weekly downloads
109.4M
License
MIT

Does queue-microtask@1.2.3 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("queue-microtask") from a CommonJS file and import "queue-microtask" from an ES module.

Runtimerequire("queue-microtask")import "queue-microtask"
Node.js 18✓ works✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4.0✓ works✓ works

How to import queue-microtask

ES modules (import)

import queueMicrotask from "queue-microtask";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const queueMicrotask = require("queue-microtask");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (11 versions; the newest 11 shown).

VersionsFormatFirst published
1.0.0 – 1.2.3CommonJSSep 7, 2019

Frequently asked

Is queue-microtask ESM-only?

queue-microtask@1.2.3 is a CommonJS package. queue-microtask ships CommonJS only. require("queue-microtask") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "queue-microtask" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import queue-microtask with ES module syntax?

Yes. import queueMicrotask from "queue-microtask" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does queue-microtask work in Bun?

Yes. import "queue-microtask" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does queue-microtask ship TypeScript types?

No. queue-microtask ships no type declarations and there is no @types package for it.

Links

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