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Is spdx-expression-parse ESM-only? Can you require() it?

parse SPDX license expressions

Last verified Sep 9, 2026 against spdx-expression-parse@5.0.0. JSON

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

spdx-expression-parse ships CommonJS only. require("spdx-expression-parse") works everywhere. import "spdx-expression-parse" 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
5.0.0 (Jul 16, 2026)
Module format
CommonJS
Last CommonJS version
5.0.0
TypeScript types
@types/spdx-expression-parse
Node engines
not declared
Weekly downloads
37.7M
License
MIT

Does spdx-expression-parse@5.0.0 actually load? Runtime test results

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

Runtimerequire("spdx-expression-parse")import "spdx-expression-parse"
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 spdx-expression-parse

ES modules (import)

import spdxExpressionParse from "spdx-expression-parse";

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 spdxExpressionParse = require("spdx-expression-parse");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (12 versions; the newest 12 shown).

VersionsFormatFirst published
1.0.0 – 5.0.0CommonJSAug 2, 2015

Frequently asked

Is spdx-expression-parse ESM-only?

spdx-expression-parse@5.0.0 is a CommonJS package. spdx-expression-parse ships CommonJS only. require("spdx-expression-parse") works everywhere. import "spdx-expression-parse" 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 spdx-expression-parse with ES module syntax?

Yes. import spdxExpressionParse from "spdx-expression-parse" 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 spdx-expression-parse work in Bun?

Yes. import "spdx-expression-parse" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does spdx-expression-parse ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/spdx-expression-parse".

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