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Is @emnapi/runtime ESM-only? Can you require() it?

emnapi runtime

Last verified Sep 9, 2026 against @emnapi/runtime@1.11.3. Markdown · JSON

Dual (CommonJS + ESM) Dual package — require() works on every Node.js version we test; import works too

@emnapi/runtime publishes both a CommonJS entry and a native ESM entry (ESM added in 0.31.0). require("@emnapi/runtime") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "@emnapi/runtime" works alongside it.

What to do

  1. Nothing to change. require("@emnapi/runtime") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import * as runtime from "@emnapi/runtime" works alongside it; use named imports for what the ESM entry exports.
  2. TypeScript: types are bundled; install nothing extra.
Latest
1.11.3 (Jul 25, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
1.11.3
Native ESM since
0.31.0
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
72.8M
License
MIT

Does @emnapi/runtime@1.11.3 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("@emnapi/runtime") from a CommonJS file and import "@emnapi/runtime" from an ES module.

Runtimerequire("@emnapi/runtime")import "@emnapi/runtime"
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 @emnapi/runtime

ES modules (import)

import * as runtime from "@emnapi/runtime";

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS (require)

const runtime = require("@emnapi/runtime");

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 (50 versions; the newest 50 shown).

VersionsFormatFirst published
0.31.0 – 1.11.3Dual (CommonJS + ESM)Feb 14, 2023

Frequently asked

Is @emnapi/runtime ESM-only?

@emnapi/runtime@1.11.3 ships CommonJS and ESM builds. @emnapi/runtime publishes both a CommonJS entry and a native ESM entry (ESM added in 0.31.0). require("@emnapi/runtime") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "@emnapi/runtime" works alongside it.

Can I require @emnapi/runtime?

Yes. @emnapi/runtime ships a CommonJS entry alongside the native ESM entry. require("@emnapi/runtime") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.

Does @emnapi/runtime work in Bun?

Yes. import "@emnapi/runtime" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does @emnapi/runtime ship TypeScript types?

Yes. @emnapi/runtime bundles its own type declarations; no @types package is needed.

Links

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