canirequire › CommonJS › pump
Is pump ESM-only? Can you require() it?
pipe streams together and close all of them if one of them closes
Last verified Sep 9, 2026 against pump@3.0.4. JSON
CommonJS CommonJS — require() works on every Node.js version
pump ships CommonJS only. require("pump") works everywhere. import "pump" 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.
Does pump@3.0.4 actually load? Runtime test results
Installed and executed on Sep 9, 2026 with require("pump") from a CommonJS file and import "pump" from an ES module.
| Runtime | require("pump") | import "pump" |
|---|---|---|
| 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 | ✓ works | ✓ works |
How to import pump
ES modules (import)
import pump from "pump";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 pump = require("pump");Module format by version
Derived from the type, main and exports fields of every stable release on npm (29 versions; the newest 29 shown).
| Versions | Format | First published |
|---|---|---|
| 0.1.0 – 3.0.4 | CommonJS | Aug 14, 2013 |
Frequently asked
Is pump ESM-only?
pump@3.0.4 is a CommonJS package. pump ships CommonJS only. require("pump") works everywhere. import "pump" 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 pump with ES module syntax?
Yes. import pump from "pump" 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 pump work in Bun?
Yes. import "pump" loaded successfully in Bun 1.4 on Sep 9, 2026.
Does pump ship TypeScript types?
Not bundled. Install the community types with "npm install -D @types/pump".
Links
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