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Is @istanbuljs/nyc-config-typescript ESM-only? Can you require() it?

nyc configuration that works with typescript

Last verified Sep 9, 2026 against @istanbuljs/nyc-config-typescript@1.0.2. JSON

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

@istanbuljs/nyc-config-typescript ships CommonJS only. require("@istanbuljs/nyc-config-typescript") works everywhere. import "@istanbuljs/nyc-config-typescript" 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
1.0.2 (Dec 1, 2021)
Module format
CommonJS
Last CommonJS version
1.0.2
TypeScript types
None
Node engines
>=8
License
ISC

Does @istanbuljs/nyc-config-typescript@1.0.2 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("@istanbuljs/nyc-config-typescript") from a CommonJS file and import "@istanbuljs/nyc-config-typescript" from an ES module.

Runtimerequire("@istanbuljs/nyc-config-typescript")import "@istanbuljs/nyc-config-typescript"
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 @istanbuljs/nyc-config-typescript

ES modules (import)

import nycConfigTypescript from "@istanbuljs/nyc-config-typescript";

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 nycConfigTypescript = require("@istanbuljs/nyc-config-typescript");

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
0.1.0 – 1.0.2CommonJSJan 29, 2019

Frequently asked

Is @istanbuljs/nyc-config-typescript ESM-only?

@istanbuljs/nyc-config-typescript@1.0.2 is a CommonJS package. @istanbuljs/nyc-config-typescript ships CommonJS only. require("@istanbuljs/nyc-config-typescript") works everywhere. import "@istanbuljs/nyc-config-typescript" 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 @istanbuljs/nyc-config-typescript with ES module syntax?

Yes. import nycConfigTypescript from "@istanbuljs/nyc-config-typescript" 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 @istanbuljs/nyc-config-typescript work in Bun?

Yes. import "@istanbuljs/nyc-config-typescript" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does @istanbuljs/nyc-config-typescript ship TypeScript types?

No. @istanbuljs/nyc-config-typescript ships no type declarations and there is no @types package for it.

Links

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