babel-preset-startupjs

0.61.3 verified Sat Apr 25 auth: no javascript

Babel preset for compiling StartupJS applications across server, web, and native platforms. Current stable version: 0.61.3. Low release cadence (minor updates irregularly). Integrates nicessary Babel plugins for CSS-in-JS (cssxjs) and platform-specific transpilation. Differentiator: single preset for all StartupJS targets vs manually configuring Babel for each environment.

Common errors

error Error: Cannot find module 'cssxjs' ↓

cause Peer dependency cssxjs not installed.

fix

Run: npm install cssxjs

error Error: Requires Babel "^7.0.0-0", but was loaded with "6.x". ↓

cause Using Babel 6 instead of Babel 7.

fix

Upgrade Babel core and CLI to version 7.

Warnings

gotcha Missing peer dependency cssxjs. npm does not auto-install peer dependencies for Babel presets. ↓

fix Run: npm install cssxjs

gotcha Using ES module import syntax (import) to load this preset causes errors because it's a CommonJS module. ↓

fix Use require() in your Babel config file (.babelrc or babel.config.js).

gotcha Preset name must be 'babel-preset-startupjs', not 'startupjs'. Babel will fail if you omit 'babel-preset-' prefix. ↓

fix Use full package name in presets array.

Install

npm install babel-preset-startupjs

yarn add babel-preset-startupjs

pnpm add babel-preset-startupjs

Imports

default

wrong

import preset from 'babel-preset-startupjs'

correct

module.exports = require('babel-preset-startupjs')

CommonJS module, not ESM; use require in .babelrc or babel.config.js

default
wrong
```
{
  "presets": ["startupjs"]
}
```
correct
```
{
  "presets": ["babel-preset-startupjs"]
}
```
Full package name required in Babel config; shorthand not supported
default
wrong
```
presets: ['startupjs']
```
correct
```
presets: ['babel-preset-startupjs']
```
Same as JSON config; use exact package name

Quickstart

Basic setup for StartupJS Babel compilation. Requires manual installation of peer dependency cssxjs.

// Install peer dependency first
npm install cssxjs

// In babel.config.js
module.exports = {
  presets: ['babel-preset-startupjs']
};