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Is babel-preset-flow ESM-only? Can you require() it?

Babel preset for all Flow plugins.

Last verified Sep 9, 2026 against babel-preset-flow@6.23.0. JSON

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

babel-preset-flow ships CommonJS only. require("babel-preset-flow") works everywhere. import "babel-preset-flow" 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
6.23.0 (Feb 14, 2017)
Module format
CommonJS
Last CommonJS version
6.23.0
TypeScript types
None
Node engines
not declared
Weekly downloads
480K
License
MIT

Does babel-preset-flow@6.23.0 actually load? Runtime test results

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

Runtimerequire("babel-preset-flow")import "babel-preset-flow"
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 babel-preset-flow

ES modules (import)

import babelPresetFlow from "babel-preset-flow";

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 babelPresetFlow = require("babel-preset-flow");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (4 versions; the newest 4 shown).

VersionsFormatFirst published
0.1.0 – 6.23.0CommonJSApr 23, 2016

Frequently asked

Is babel-preset-flow ESM-only?

babel-preset-flow@6.23.0 is a CommonJS package. babel-preset-flow ships CommonJS only. require("babel-preset-flow") works everywhere. import "babel-preset-flow" 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 babel-preset-flow with ES module syntax?

Yes. import babelPresetFlow from "babel-preset-flow" 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 babel-preset-flow work in Bun?

Yes. import "babel-preset-flow" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does babel-preset-flow ship TypeScript types?

No. babel-preset-flow ships no type declarations and there is no @types package for it.

Links

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