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Is combined-stream ESM-only? Can you require() it?

A stream that emits multiple other streams one after another.

Last verified Sep 9, 2026 against combined-stream@1.0.8. Markdown · JSON

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

combined-stream ships CommonJS only. require("combined-stream") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.8. import "combined-stream" 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("combined-stream") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.8.
  2. From ES modules use the default import: import combinedStream from "combined-stream"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/combined-stream
Latest
1.0.8 (May 12, 2019)
Module format
CommonJS
Last CommonJS version
1.0.8
TypeScript types
@types/combined-stream
Node engines
>= 0.8
Weekly downloads
106.3M
License
MIT

Does combined-stream@1.0.8 actually load? Runtime test results

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

Runtimerequire("combined-stream")import "combined-stream"
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 combined-stream

ES modules (import)

import combinedStream from "combined-stream";

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 combinedStream = require("combined-stream");

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 (16 versions; the newest 16 shown).

VersionsFormatFirst published
0.0.0 – 1.0.8CommonJSMay 24, 2011

Frequently asked

Is combined-stream ESM-only?

combined-stream@1.0.8 is a CommonJS package. combined-stream ships CommonJS only. require("combined-stream") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.8. import "combined-stream" 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 combined-stream with ES module syntax?

Yes. import combinedStream from "combined-stream" 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 combined-stream work in Bun?

Yes. import "combined-stream" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does combined-stream ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/combined-stream".

Links

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