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Is diff-sequences ESM-only? Can you require() it?

Compare items in two sequences to find a longest common subsequence

Last verified Sep 9, 2026 against diff-sequences@29.6.3. JSON

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

diff-sequences ships CommonJS only. require("diff-sequences") works everywhere. import "diff-sequences" 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
29.6.3 (Aug 21, 2023)
Module format
CommonJS
Last CommonJS version
29.6.3
TypeScript types
Bundled
Node engines
^14.15.0 || ^16.10.0 || >=18.0.0
Weekly downloads
41.5M
License
MIT

Does diff-sequences@29.6.3 actually load? Runtime test results

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

Runtimerequire("diff-sequences")import "diff-sequences"
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 diff-sequences

ES modules (import)

import diffSequences from "diff-sequences";

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 diffSequences = require("diff-sequences");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (33 versions; the newest 33 shown).

VersionsFormatFirst published
0.0.0 – 29.6.3CommonJSFeb 7, 2018

Frequently asked

Is diff-sequences ESM-only?

diff-sequences@29.6.3 is a CommonJS package. diff-sequences ships CommonJS only. require("diff-sequences") works everywhere. import "diff-sequences" 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 diff-sequences with ES module syntax?

Yes. import diffSequences from "diff-sequences" 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 diff-sequences work in Bun?

Yes. import "diff-sequences" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does diff-sequences ship TypeScript types?

Yes. diff-sequences bundles its own type declarations; no @types package is needed.

Links

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