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Is jsesc ESM-only? Can you require() it?

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Last verified Sep 9, 2026 against jsesc@3.1.0. Markdown · JSON

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

jsesc ships CommonJS only. require("jsesc") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6. import "jsesc" 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("jsesc") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6.
  2. From ES modules use the default import: import jsesc from "jsesc"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/jsesc
Latest
3.1.0 (Dec 11, 2024)
Module format
CommonJS
Last CommonJS version
3.1.0
TypeScript types
@types/jsesc
Node engines
>=6
Weekly downloads
158.9M
License
MIT

Does jsesc@3.1.0 actually load? Runtime test results

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

Runtimerequire("jsesc")import "jsesc"
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 jsesc

ES modules (import)

import jsesc from "jsesc";

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 jsesc = require("jsesc");

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 (23 versions; the newest 23 shown).

VersionsFormatFirst published
0.3.0 – 3.1.0CommonJSJul 27, 2013

Frequently asked

Is jsesc ESM-only?

jsesc@3.1.0 is a CommonJS package. jsesc ships CommonJS only. require("jsesc") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6. import "jsesc" 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 jsesc with ES module syntax?

Yes. import jsesc from "jsesc" 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 jsesc work in Bun?

Yes. import "jsesc" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does jsesc ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/jsesc".

Links

Other commonjs packages

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