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Is tiny-warning ESM-only? Can you require() it?

A tiny warning function

Last verified Sep 9, 2026 against tiny-warning@1.0.3. JSON

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

tiny-warning ships CommonJS only. require("tiny-warning") works everywhere. import "tiny-warning" 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.

It also declares a "module" field, so bundlers such as webpack, Vite and esbuild pick up an ESM build for tree-shaking.

Latest
1.0.3 (Jul 9, 2019)
Module format
CommonJS
Last CommonJS version
1.0.3
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
11.6M
License
MIT

Does tiny-warning@1.0.3 actually load? Runtime test results

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

Runtimerequire("tiny-warning")import "tiny-warning"
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 tiny-warning

ES modules (import)

import tinyWarning from "tiny-warning";

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 tinyWarning = require("tiny-warning");

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
0.0.1 – 1.0.3CommonJSOct 2, 2018

Frequently asked

Is tiny-warning ESM-only?

tiny-warning@1.0.3 is a CommonJS package. tiny-warning ships CommonJS only. require("tiny-warning") works everywhere. import "tiny-warning" 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 tiny-warning with ES module syntax?

Yes. import tinyWarning from "tiny-warning" 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 tiny-warning work in Bun?

Yes. import "tiny-warning" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does tiny-warning ship TypeScript types?

Yes. tiny-warning bundles its own type declarations; no @types package is needed.

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