babel-log

library2.0.0jsnpmunverified

babel-log is a lightweight utility for logging Babel AST paths and nodes with clean, colored formatting in the console. As of version 2.0.0, it provides a single default-exported function that accepts any object, making it ideal for debugging Babel plugins. It is in active development with a low release cadence. Unlike manual console.log, babel-log formats complex AST structures for readability.

testing observability

npm install babel-log

github ↗package ↗

INSTALL

IMPORT

SIG · BABEL-LOG

babel-log

testingjavascriptv2.0.0

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

✓ import log from 'babel-log'

✗ import { log } from 'babel-log'

The package exports a single default function; named import will result in undefined.

default

✓ const log = require('babel-log')

✗ const { log } = require('babel-log')

CommonJS usage: the module.exports is the function itself.

log (type)

✓ import type log from 'babel-log'

TypeScript users may import the type for type annotations, though the default export is untyped.

This shows how to import and use babel-log inside a Babel plugin to log AST nodes during traversal.

import log from 'babel-log'; export default function myBabelPlugin() { return { visitor: { Identifier(path) { log(path.node); // logs the node with pretty formatting } } }; }

Debug

Known issues

gotchaThe function only logs to console and returns undefined; it is not for serialization.

fix

Use it only for debugging; do not rely on return value.

affects: >=0.0.0

Errors

Common errors & fixes

TypeError: log is not a function

Importing with named import instead of default import.

fix

Use import log from 'babel-log' (without curly braces).

Cannot find module 'babel-log'

Package not installed in project dependencies.

fix

Run npm install babel-log --save-dev

Upgrade

Version history

2.0.0latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

26 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/thejameskyle/babel-log ↗

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