Registry / devops / babel-plugin-transform-require-default

babel-plugin-transform-require-default

library0.1.7jsnpmunverified

A Babel plugin (v0.1.7, last updated 2018) that automatically transforms CommonJS require() calls to access .default for ES modules that use __esModule. Addresses Babel 6/7's breaking change where exported defaults are no longer assigned to module.exports, requiring manual .default access. Helps maintain backward compatibility in mixed ES module / CommonJS codebases. Use with caution: modifies module resolution behavior and may cause unintended side effects. Consider alternatives like using ES import syntax or newer Babel interop settings.

devops

npm install babel-plugin-transform-require-default

github ↗package ↗

INSTALL

IMPORT

SIG · BABEL-PLUGIN-TRANS

babel-plugin-transform-require-default

devopsjavascriptv0.1.7

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ module.exports = { plugins: [['transform-require-default', { exclude: /lodash/ }]] }

✗ require('babel-plugin-transform-require-default').default

The plugin exports a function, not an object. It does not have a default export; it's a CommonJS module.

Configures the Babel plugin to transform require() calls, excluding certain modules, and shows the result of the transformation.

// .babelrc or babel.config.js module.exports = { plugins: [ ['transform-require-default', { exclude: ['lodash', /^react/] }] ] }; // Before: const a = require('a'); // After: function __require_default_func__(module) { return module && module.__esModule ? module["default"] : module; } const a = __require_default_func__(require('a'));

Debug

Known issues

breakingPlugin modifies all require() calls to add default interop, which may break modules that don't export defaults or that rely on the raw module object.

fix

Use exclude option to skip modules that don't need default interop (e.g., lodash, React).

affects: >=0.0.0

breakingPlugin uses __esModule heuristic; modules that don't set __esModule but have a default export will still be transformed, causing 'default.default' access.

fix

Ensure all affected modules set __esModule, or use exclude to skip them.

affects: >=0.0.0

gotchaPlugin does not handle dynamic require() with variables or computed expressions.

fix

Use static require() calls if you need transformation.

affects: >=0.0.0

gotchaPlugin may interfere with other Babel plugins that also transform require (e.g., babel-plugin-import).

fix

Test carefully with your plugin stack, and adjust plugin ordering.

affects: >=0.0.0

Errors

Common errors & fixes

TypeError: require(...).default is not a function

Module exports a function directly, not as default export. Plugin incorrectly adds .default.

fix

Add the module to the exclude list: exclude: ["my-module"]

Module "lodash" has no default export

Plugin transforms require('lodash') to require('lodash').default, but lodash doesn't have __esModule.

fix

Use exclude: ['lodash'] or set strict mode.

Upgrade

Version history

0.1.7latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/kingback/babel-plugin-transform-require-default ↗

packagehttps://www.npmjs.com/package/babel-plugin-transform-require-default ↗