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

ECMAScript code generator

Last verified Sep 9, 2026 against escodegen@2.1.0. JSON

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

escodegen ships CommonJS only. require("escodegen") works everywhere. import "escodegen" 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.

Latest
2.1.0 (Jun 29, 2023)
Module format
CommonJS
Last CommonJS version
2.1.0
TypeScript types
@types/escodegen
Node engines
>=6.0
Weekly downloads
49.7M
License
BSD-2-Clause

Does escodegen@2.1.0 actually load? Runtime test results

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

Runtimerequire("escodegen")import "escodegen"
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 escodegen

ES modules (import)

import escodegen from "escodegen";

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 escodegen = require("escodegen");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (60 versions; the newest 60 shown).

VersionsFormatFirst published
0.0.1 – 2.1.0CommonJSMar 3, 2012

Frequently asked

Is escodegen ESM-only?

escodegen@2.1.0 is a CommonJS package. escodegen ships CommonJS only. require("escodegen") works everywhere. import "escodegen" 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 escodegen with ES module syntax?

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

Yes. import "escodegen" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does escodegen ship TypeScript types?

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

Links

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