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Is utils-merge ESM-only? Can you require() it?

merge() utility function

Last verified Sep 9, 2026 against utils-merge@1.0.1. JSON

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

utils-merge ships CommonJS only. require("utils-merge") works everywhere. import "utils-merge" 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
1.0.1 (Sep 20, 2017)
Module format
CommonJS
Last CommonJS version
1.0.1
TypeScript types
@types/utils-merge
Node engines
>= 0.4.0
Weekly downloads
48.6M
License
MIT

Does utils-merge@1.0.1 actually load? Runtime test results

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

Runtimerequire("utils-merge")import "utils-merge"
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 utils-merge

ES modules (import)

import utilsMerge from "utils-merge";

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 utilsMerge = require("utils-merge");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (2 versions; the newest 2 shown).

VersionsFormatFirst published
1.0.0 – 1.0.1CommonJSJul 11, 2013

Frequently asked

Is utils-merge ESM-only?

utils-merge@1.0.1 is a CommonJS package. utils-merge ships CommonJS only. require("utils-merge") works everywhere. import "utils-merge" 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 utils-merge with ES module syntax?

Yes. import utilsMerge from "utils-merge" 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 utils-merge work in Bun?

Yes. import "utils-merge" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does utils-merge ship TypeScript types?

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

Links

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