Registry / devops / webpack-babel-env-deps

webpack-babel-env-deps

library1.6.4jsnpmunverified

A webpack helper to identify which npm dependencies need Babel transpilation by comparing their package.json engines and module fields against your project's Node.js targets. Version 1.6.4 is current; stable with minor releases. Key differentiator: automates the tedious manual process of checking each dependency's engine compatibility for transpilation decisions, integrating with @babel/preset-env to avoid over-transpiling or missing required transforms.

devops

npm install webpack-babel-env-deps

github ↗package ↗

INSTALL

IMPORT

SIG · WEBPACK-BABEL-ENV-

webpack-babel-env-deps

devopsjavascriptv1.6.4

Install

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Import

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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.

findDependenciesToTranspile

✓ import { findDependenciesToTranspile } from 'webpack-babel-env-deps'

✗ const findDependenciesToTranspile = require('webpack-babel-env-deps').findDependenciesToTranspile

ESM export; also available as default export

default

✓ import webpackBabelEnvDeps from 'webpack-babel-env-deps'

✗ const webpackBabelEnvDeps = require('webpack-babel-env-deps').default

Default export is the main function; can be used directly.

addPlugins

✓ import { addPlugins } from 'webpack-babel-env-deps'

✗ const addPlugins = require('webpack-babel-env-deps/addPlugins')

Named export for adding Babel plugins conditionally

Shows how to exclude node_modules from Babel transpilation except for packages that require it based on their engines field.

// webpack.config.js const { findDependenciesToTranspile } = require('webpack-babel-env-deps'); module.exports = { // ... module: { rules: [ { test: /\.js$/, exclude: filename => { // Exclude node_modules except those that need transpilation if (filename.indexOf('node_modules') === -1) return false; return !findDependenciesToTranspile({ packageContent: { engines: { node: '>=6' } }, // your project's engines dependencies: ['some-es6-pkg'], // list of dependency names }); }, use: 'babel-loader', }, ], }, };

Debug

Known issues

gotchaNode.js >=6 required, may not work with older Node.js versions

fix

Upgrade Node.js to >=6 or use older version of this package

affects: <1.0.0

deprecatedUse of engines field may cause false positives/negatives if dependencies don't specify engines

fix

Ensure all dependencies have accurate engines field; use module field as fallback

affects: *

gotchaDefault export may be mistaken for named export; import correctly

fix

Use default import or explicitly import named functions

affects: *

gotchaRequires @babel/preset-env as peer dependency at version ^7

fix

Install @babel/preset-env@^7 alongside this package

affects: >=1.0.0

Errors

Common errors & fixes

Cannot find module '@babel/preset-env'

Missing peer dependency @babel/preset-env

fix

npm install @babel/preset-env@^7

TypeError: findDependenciesToTranspile is not a function

Importing incorrectly as default instead of named

fix

Use const { findDependenciesToTranspile } = require('webpack-babel-env-deps');

Error: Options 'targets' is deprecated

Using deprecated options from older version of package or @babel/preset-env

fix

Check documentation for current API; use 'packageContent' and 'dependencies' arguments

Upgrade

Version history

1.6.4latest on npm

Audit

Dependencies

@babel/preset-envrequiredpeer dependency required for target comparison and integration

Agent activity

11 hits · last 30 days

node

Resources

githubhttps://github.com/AndersDJohnson/webpack-babel-env-deps ↗

packagehttps://www.npmjs.com/package/webpack-babel-env-deps ↗