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Is string.prototype.trimend ESM-only? Can you require() it?

ES2019 spec-compliant String.prototype.trimEnd shim.

Last verified Sep 9, 2026 against string.prototype.trimend@1.0.10. Markdown · JSON

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

string.prototype.trimend ships CommonJS only. require("string.prototype.trimend") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "string.prototype.trimend" 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("string.prototype.trimend") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4.
  2. From ES modules use the default import: import stringPrototypeTrimend from "string.prototype.trimend"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: no types are available for string.prototype.trimend; declare the module yourself if you need them.
Latest
1.0.10 (Jun 6, 2026)
Module format
CommonJS
Last CommonJS version
1.0.10
TypeScript types
None
Node engines
>= 0.4
Weekly downloads
64.5M
License
MIT

Does string.prototype.trimend@1.0.10 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("string.prototype.trimend") from a CommonJS file and import "string.prototype.trimend" from an ES module.

Runtimerequire("string.prototype.trimend")import "string.prototype.trimend"
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 string.prototype.trimend

ES modules (import)

import stringPrototypeTrimend from "string.prototype.trimend";

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 stringPrototypeTrimend = require("string.prototype.trimend");

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 (13 versions; the newest 13 shown).

VersionsFormatFirst published
0.0.1 – 1.0.10CommonJSDec 19, 2017

Frequently asked

Is string.prototype.trimend ESM-only?

string.prototype.trimend@1.0.10 is a CommonJS package. string.prototype.trimend ships CommonJS only. require("string.prototype.trimend") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "string.prototype.trimend" 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 string.prototype.trimend with ES module syntax?

Yes. import stringPrototypeTrimend from "string.prototype.trimend" 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 string.prototype.trimend work in Bun?

Yes. import "string.prototype.trimend" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does string.prototype.trimend ship TypeScript types?

No. string.prototype.trimend ships no type declarations and there is no @types package for it.

Links

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