Registry / serialization / babel-preset-stage-2

babel-preset-stage-2

library6.24.1jsnpmunverified

Babel preset that includes all stage 2 (draft) ECMAScript proposal plugins. Version 6.24.1 is the last stable release; the package is effectively deprecated as Babel 7+ removed stage presets in favor of individual plugin opt-in. Use @babel/preset-env with targets or manually specify proposal plugins. This preset was part of the Babel 6.x era and should not be used for new projects.

serialization

npm install babel-preset-stage-2

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · BABEL-PRESET-STAGE

babel-preset-stage-2

serializationjavascriptv6.24.1

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 (preset)

✓ module.exports = { presets: ['stage-2'] }

✗ import stage2 from 'babel-preset-stage-2'

This is a Babel 6 preset, not a JS module. Use string name in .babelrc or Node API.

require for Node API

✓ require('babel-core').transform(code, { presets: ['stage-2'] })

✗ const stage2 = require('babel-preset-stage-2'); ... presets: [stage2]

Presets are resolved by string name; passing the module directly may cause version mismatches.

Babel 7 replacement

✓ npm install @babel/preset-env @babel/plugin-proposal-optional-chaining // .babelrc: { presets: [['@babel/preset-env', { targets: '> 0.25%' }]] }

✗ npm install @babel/preset-stage-2

Babel 7 removed stage presets. Use @babel/preset-env with targets or individual proposal plugins.

Shows installation and basic usage of babel-preset-stage-2 with .babelrc and Node API.

// Step 1: Install npm install --save-dev babel-cli babel-preset-stage-2 // Step 2: Create .babelrc { "presets": ["stage-2"] } // Step 3: Compile babel script.js --out-file script-compiled.js // Or programmatically with Node API const babel = require('babel-core'); const result = babel.transform('const x = {...obj}', { presets: ['stage-2'] }); console.log(result.code);

Debug

Known issues

deprecatedbabel-preset-stage-2 is deprecated in favor of @babel/preset-env.

fix

Use @babel/preset-env with targets or add individual proposal plugins.

affects: >=6.0.0

breakingBabel 7 removed stage presets entirely; this package does not work with @babel/core.

fix

Migrate to @babel/preset-env and specific plugins like @babel/plugin-proposal-optional-chaining.

affects: >=6.24.1

gotchaUsing both stage-2 and stage-3 presets together causes duplicate plugin errors.

fix

Only use the highest stage preset needed (stage-2 includes stage-3).

affects: >=6.0.0

Errors

Common errors & fixes

Error: Cannot find module 'babel-preset-stage-2'

Missing npm install of the preset.

fix

Run: npm install --save-dev babel-preset-stage-2

ReferenceError: [BABEL] unknown preset: stage-2

Using package name with @babel/core (Babel 7) which doesn't support the old preset naming.

fix

Migrate to @babel/preset-env: npm install --save-dev @babel/preset-env and configure in .babelrc.

Upgrade

Version history

6.24.1latest on npm

Audit

Dependencies

babel-preset-stage-3requiredStage 2 preset includes stage 3 plugins

babel-plugin-syntax-trailing-function-commasoptionalIncluded in stage 2 preset

Agent activity

17 hits · last 30 days

node

Amazon

OpenAI (training)

Resources

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

packagehttps://www.npmjs.com/package/babel-preset-stage-2 ↗

homepagehttps://babeljs.io/ ↗