canirequire › CommonJS › benchmark
Is benchmark ESM-only? Can you require() it?
A benchmarking library that supports high-resolution timers & returns statistically significant results.
Last verified Sep 9, 2026 against benchmark@2.1.4. JSON
CommonJS CommonJS — require() works on every Node.js version
benchmark ships CommonJS only. require("benchmark") works everywhere. import "benchmark" 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 benchmark@2.1.4 actually load? Runtime test results
Installed and executed on Sep 9, 2026 with require("benchmark") from a CommonJS file and import "benchmark" from an ES module.
| Runtime | require("benchmark") | import "benchmark" |
|---|---|---|
| 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 benchmark
ES modules (import)
import benchmark from "benchmark";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 benchmark = require("benchmark");Module format by version
Derived from the type, main and exports fields of every stable release on npm (24 versions; the newest 24 shown).
| Versions | Format | First published |
|---|---|---|
| 0.1.337 – 2.1.4 | CommonJS | Dec 28, 2010 |
Frequently asked
Is benchmark ESM-only?
benchmark@2.1.4 is a CommonJS package. benchmark ships CommonJS only. require("benchmark") works everywhere. import "benchmark" 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 benchmark with ES module syntax?
Yes. import benchmark from "benchmark" 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 benchmark work in Bun?
Yes. import "benchmark" loaded successfully in Bun 1.4 on Sep 9, 2026.
Does benchmark ship TypeScript types?
Not bundled. Install the community types with "npm install -D @types/benchmark".
Links
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