Pob Babel

45.0.1 verified Sat Apr 25 auth: no javascript

Pob Babel is a build and watch tool using Babel and TypeScript, part of the Pob monorepo toolchain. The current stable version is 45.0.1, requiring Node.js >=22.18.0. It integrates Babel compilation with TypeScript type-checking, providing a streamlined development workflow for JavaScript and TypeScript projects. Key differentiators include automatic dependency handling, watch mode, and integration with other Pob tools like @pob/version and pob-dependencies.

Common errors

error Error: Cannot find module 'pob-babel' ↓

cause Package not installed or import path incorrect

fix

Run 'npm install pob-babel' and use correct import: import pobBabel from 'pob-babel'

error TypeError: pobBabel.build is not a function ↓

cause Using default import but trying to call build as a method

fix

Use named import: import { build } from 'pob-babel'

error Error: Requires Node.js 22.18.0 or higher ↓

cause Node.js version too old

fix

Upgrade Node.js to version >=22.18.0

error SyntaxError: Cannot use import statement outside a module ↓

cause Using ESM import in a CommonJS project without proper configuration

fix

Add 'type': 'module' to package.json or use .mjs extension

Warnings

breaking Node.js >=22.18.0 required as of version 45.0.0 ↓

fix Upgrade Node.js to version 22.18.0 or later

breaking ESM-only: CommonJS require() not supported since v45 ↓

fix Use import syntax or dynamic import()

deprecated The 'watch' callback API deprecated in favor of event emitter ↓

fix Use watcher.on('change', cb) instead of passing callback to watch()

gotcha TypeScript config must be in tsconfig.json, not in Babel config ↓

fix Place TypeScript options in tsconfig.json; Babel only handles transpilation

breaking Removed support for .babelrc; use babel.config.js instead ↓

fix Migrate to babel.config.js or babel.config.cjs

Install

npm install pob-babel

yarn add pob-babel

pnpm add pob-babel

Imports

pob-babel

wrong

const pobBabel = require('pob-babel')

correct

import pobBabel from 'pob-babel'

ESM-only package, default export

build

wrong

const build = require('pob-babel/build')

correct

import { build } from 'pob-babel'

Named export for build function

watch

wrong

const watch = require('pob-babel').watch

correct

import { watch } from 'pob-babel'

Named export for watch function

Quickstart

Shows basic build and watch usage with TypeScript, Babel config, and cleaning.

import { build, watch } from 'pob-babel';

// Build once
await build({
  cwd: process.cwd(),
  config: './babel.config.js',
  typescript: true,
  clean: true
});

// Watch mode
const watcher = watch({
  cwd: process.cwd(),
  config: './babel.config.js',
  typescript: true
});
watcher.on('change', (file) => console.log(`File changed: ${file}`));
watcher.start();