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Is strip-final-newline ESM-only? Can you require() it?

Strip the final newline character from a string or Uint8Array

Last verified Sep 9, 2026 against strip-final-newline@4.0.0. JSON

ESM-only ESM-only since 3.0.0 — last CommonJS version is 2.0.0

strip-final-newline dropped its CommonJS build in 3.0.0 (May 2021). The last version you can require() on every Node.js version, including 18 and older, is 2.0.0, published Oct 28, 2018.

On Node.js 20.19+, 22.12+ and every newer release, require("strip-final-newline") works anyway: Node can load synchronous ES modules through require(). Verified on Node 20, 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

Latest
4.0.0 (Dec 13, 2023)
Module format
ESM-only
Last CommonJS version
2.0.0
ESM-only since
3.0.0 (May 3, 2021)
TypeScript types
Bundled
Node engines
>=18
Weekly downloads
114.3M
License
MIT

Does strip-final-newline@4.0.0 actually load? Runtime test results

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

Runtimerequire("strip-final-newline")import "strip-final-newline"
Node.js 18✗ failsERR_REQUIRE_ESM✓ 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 strip-final-newline

ES modules (import)

import stripFinalNewline from "strip-final-newline";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const stripFinalNewline = require("strip-final-newline");

// Any Node.js version:
const stripFinalNewline = await import("strip-final-newline");

// Or pin the last CommonJS release:
// npm install strip-final-newline@2.0.0

Module format by version

Derived from the type, main and exports fields of every stable release on npm (3 versions; the newest 3 shown).

VersionsFormatFirst published
3.0.0 – 4.0.0ESM-onlyMay 3, 2021
2.0.0CommonJSOct 28, 2018

Frequently asked

Is strip-final-newline ESM-only?

strip-final-newline@4.0.0 is ESM-only. strip-final-newline dropped its CommonJS build in 3.0.0 (May 2021). The last version you can require() on every Node.js version, including 18 and older, is 2.0.0, published Oct 28, 2018.

Which version of strip-final-newline still supports CommonJS / require()?

2.0.0 is the last version of strip-final-newline with a CommonJS build. Install it with "npm install strip-final-newline@2.0.0". Every version from 3.0.0 on is ESM-only.

How do I use strip-final-newline from a CommonJS file?

Use a dynamic import: const mod = await import("strip-final-newline"). On Node.js 20.19+, 22.12+ and newer, a plain require("strip-final-newline") also works for ESM packages that do not use top-level await. Alternatively pin strip-final-newline@2.0.0.

Does strip-final-newline work in Bun?

Yes. import "strip-final-newline" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does strip-final-newline ship TypeScript types?

Yes. strip-final-newline bundles its own type declarations; no @types package is needed.

Links

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