babel-messages

library6.23.0jsnpmunverified

A utility package that provides a collection of debug messages used internally by Babel during code transformation and compilation. This package (v6.23.0) is now deprecated in modern Babel versions (v7+) and is no longer updated separately as messages are embedded directly in code or handled by @babel/code-frame. It offers functions like get(key) to retrieve localized message strings. Key differentiator: it is a legacy internal module with no standalone value for end users beyond historical reference.

devops

npm install babel-messages

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · BABEL-MESSAGES

babel-messages

devopsjavascriptv6.23.0

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.

messages

✓ import * as messages from 'babel-messages'

✗ import messages from 'babel-messages'

Module only supports namespace import, not default import.

get method

✓ import { get } from 'babel-messages'

✗ const { get } = require('babel-messages')

Works with both named import and destructured require, but the package is deprecated and not recommended for new code.

definedMessages

✓ import { definedMessages } from 'babel-messages'

✗ import definedMessages from 'babel-messages/definedMessages'

definedMessages is exported as a named export; subpath import is not supported.

Shows how to import and use the get() function to retrieve a debug message, and how to list all available message keys via definedMessages.

import { get, definedMessages } from 'babel-messages'; // Get a specific debug message console.log(get('tailCallReassignmentDeopt')); // → "Function reference has been..." // List all defined message keys console.log(Object.keys(definedMessages)); // → ['tailCallReassignmentDeopt', ...]

Debug

Known issues

deprecatedbabel-messages is deprecated in Babel v7 and removed in v8. All messages have been moved to @babel/code-frame or embedded directly.

fix

Replace usage with @babel/code-frame or handle messages manually.

affects: >=7.0.0

gotchaImporting using default import (import messages from 'babel-messages') returns undefined.

fix

Use import * as messages from 'babel-messages' or named imports like { get }.

affects: >=6.0.0

gotchaThe package only exports get() and definedMessages. Other symbols like set() are not public.

fix

Only use the documented exports: get and definedMessages.

affects: >=6.0.0

Errors

Common errors & fixes

Cannot find module 'babel-messages'

Package not installed or removed in newer Babel versions.

fix

npm install babel-messages@6.23.0 --save-dev (but prefer migrating away)

import messages from 'babel-messages'; console.log(messages.get('...')) TypeError: messages.get is not a function

Default import yields undefined because the module uses namespace export.

fix

Use import * as messages from 'babel-messages' instead.

Module not found: Error: Can't resolve 'babel-messages/definedMessages'

Subpath export 'babel-messages/definedMessages' does not exist.

fix

Import from 'babel-messages' directly: import { definedMessages } from 'babel-messages'

Upgrade

Version history

6.23.0latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/babel/babel ↗

packagehttps://www.npmjs.com/package/babel-messages ↗

homepagehttps://babeljs.io/ ↗