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canirequire › Dual (CommonJS + ESM) › dequal

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

A tiny (304B to 489B) utility for check for deep equality

Last verified Sep 9, 2026 against dequal@2.0.3. JSON

Dual (CommonJS + ESM) Dual package — both require() and import work

dequal publishes both a CommonJS entry and a native ESM entry (ESM added in 2.0.0). require("dequal") and import "dequal" both work on every supported Node.js version and in Bun.

Latest
2.0.3 (Jul 11, 2022)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
2.0.3
Native ESM since
2.0.0
TypeScript types
Bundled
Node engines
>=6
Weekly downloads
65.0M
License
MIT

Does dequal@2.0.3 actually load? Runtime test results

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

Runtimerequire("dequal")import "dequal"
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 dequal

ES modules (import)

import dequal from "dequal";

CommonJS (require)

const dequal = require("dequal");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (7 versions; the newest 7 shown).

VersionsFormatFirst published
2.0.0 – 2.0.3Dual (CommonJS + ESM)Aug 12, 2020
0.0.0 – 1.0.1CommonJSMar 7, 2019

Frequently asked

Is dequal ESM-only?

dequal@2.0.3 ships CommonJS and ESM builds. dequal publishes both a CommonJS entry and a native ESM entry (ESM added in 2.0.0). require("dequal") and import "dequal" both work on every supported Node.js version and in Bun.

Can I require dequal?

Yes. dequal ships a CommonJS entry, so require("dequal") works on every Node.js version, alongside the native ESM entry for import.

Does dequal work in Bun?

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

Does dequal ship TypeScript types?

Yes. dequal bundles its own type declarations; no @types package is needed.

Links

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