Registry / web-framework / babel-preset-mobx

babel-preset-mobx

library2.0.0jsnpmunverified

Babel preset for ES features commonly used with MobX. Current stable version 2.0.0, last updated 2017, no recent releases. Includes transform-decorators-legacy, transform-class-properties, transform-es2015-classes, transform-regenerator. Requires babel-polyfill or regenerator-runtime for async/generators. Outdated and unmaintained; users should migrate to modern Babel (v7+) with individual @babel/plugin proposals or a custom preset. Does not support current MobX 6+ decorator syntax.

web-framework

npm install babel-preset-mobx

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · BABEL-PRESET-MOBX

babel-preset-mobx

web-frameworkjavascriptv2.0.0

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.

preset

✓ // .babelrc: { "presets": ["mobx"] }

✗ import 'babel-preset-mobx' // not meant for direct import

Preset is configured in Babel config, not imported in code.

decorator support

✓ // Use babel-preset-mobx in .babelrc

✗ import { transformDecoratorsLegacy } from 'babel-preset-mobx'

Plugins are bundled, not individually exported.

regenerator

✓ // need to add regenerator-runtime as dependency

✗ // assumed included in preset, but it's not

babel-preset-mobx includes transform-regenerator but not the runtime.

Install and configure babel-preset-mobx with .babelrc for MobX projects.

npm install --save-dev babel-preset-mobx # Add to .babelrc: { "presets": ["mobx"] }

Debug

Known issues

deprecatedbabel-preset-mobx is outdated and unmaintained; not compatible with Babel 7+.

fix

Use @babel/preset-env and add required plugins manually for Babel 7+.

affects: >=2.0.0

gotchababel-polyfill or regenerator-runtime must be installed separately for async/generators.

fix

Install babel-polyfill or regenerator-runtime as a runtime dependency.

affects: >=2.0.0

gotchaIncluded plugins (transform-decorators-legacy) are deprecated in Babel 7+.

fix

Use @babel/plugin-proposal-decorators and @babel/plugin-proposal-class-properties.

affects: >=2.0.0

Errors

Common errors & fixes

Error: Plugin/Preset files are not allowed to export objects, only functions.

Using this preset with Babel 7+ which expects functions, not legacy plugin objects.

fix

Upgrade to a Babel 7 compatible preset or use @babel/preset-env with manual plugins.

ReferenceError: regeneratorRuntime is not defined

Missing regenerator-runtime runtime dependency for async functions.

fix

Install regenerator-runtime and import it at the entry point.

Support for the experimental syntax 'decorators-legacy' isn't currently enabled

Babel 7 requires explicit plugin for decorators.

fix

Add @babel/plugin-proposal-decorators with legacy: true to Babel config.

Upgrade

Version history

2.0.0latest on npm

Audit

Dependencies

babel-polyfilloptionalrequired for async/generator functions at runtime

regenerator-runtimeoptionalalternative to babel-polyfill for async/generators

Agent activity

11 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/zwhitchcox/babel-preset-mobx ↗

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

homepagehttps://babeljs.io/ ↗