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Is karma-coverage ESM-only? Can you require() it?

A Karma plugin. Generate code coverage.

Last verified Sep 9, 2026 against karma-coverage@2.2.1. JSON

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

karma-coverage ships CommonJS only. require("karma-coverage") works everywhere. import "karma-coverage" 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
2.2.1 (Jun 23, 2023)
Module format
CommonJS
Last CommonJS version
2.2.1
TypeScript types
@types/karma-coverage
Node engines
>=10.0.0
Weekly downloads
1.9M
License
MIT

Does karma-coverage@2.2.1 actually load? Runtime test results

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

Runtimerequire("karma-coverage")import "karma-coverage"
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 karma-coverage

ES modules (import)

import karmaCoverage from "karma-coverage";

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 karmaCoverage = require("karma-coverage");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (42 versions; the newest 42 shown).

VersionsFormatFirst published
0.0.1 – 2.2.1CommonJSMar 19, 2013

Frequently asked

Is karma-coverage ESM-only?

karma-coverage@2.2.1 is a CommonJS package. karma-coverage ships CommonJS only. require("karma-coverage") works everywhere. import "karma-coverage" 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 karma-coverage with ES module syntax?

Yes. import karmaCoverage from "karma-coverage" 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 karma-coverage work in Bun?

Yes. import "karma-coverage" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does karma-coverage ship TypeScript types?

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

Links

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