Registry / devops / babel-preset-compat

babel-preset-compat

library0.22.4jsnpmunverified

A Babel preset that enables COMPAT mode for JavaScript transpilation, targeting older browsers and environments. Current stable version is 0.22.4. This package is part of the compat ecosystem, designed to simplify polyfilling and transpilation for maximum compatibility with legacy platforms. It differentiates itself by focusing specifically on 'compat' mode, reducing config overhead. However, it lacks documentation and has been in maintenance mode with no recent updates.

devops

npm install babel-preset-compat

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INSTALL

IMPORT

SIG · BABEL-PRESET-COMPA

babel-preset-compat

devopsjavascriptv0.22.4

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 compatPreset from 'babel-preset-compat'

✗ const compatPreset = require('babel-preset-compat').default

Default import; CJS users can use require('babel-preset-compat') directly.

config

✓ import compatPreset from 'babel-preset-compat'; export default { presets: [compatPreset] }

✗ export default { presets: ['babel-preset-compat'] }

For Babel config, you typically use the preset directly as a function or reference.

preset

✓ module.exports = { presets: [ require('babel-preset-compat') ] }

✗ module.exports = { presets: ['babel-preset-compat'] }

In CJS, require the module directly; string references may not work.

Demonstrates basic usage of the preset with custom targets for legacy browsers.

// Install: npm install --save-dev babel-preset-compat // Then in babel.config.js: module.exports = { presets: [ ['babel-preset-compat', { targets: { ie: '11', chrome: '49' } }] ] };

Debug

Known issues

gotchaNo README provided; configuration options are undocumented.

fix

Visit source code or use with caution; defaults may be unexpected.

affects: *

deprecatedPackage has not been updated in over 2 years; may not support modern syntax.

fix

Consider using @babel/preset-env with appropriate targets instead.

affects: *

breakingVersion 0.x has unstable API; breaking changes may occur between minor versions.

fix

Pin exact version and test thoroughly.

affects: >=0.22.0 <1.0.0

Errors

Common errors & fixes

Cannot find module 'babel-preset-compat'

Package not installed or not in node_modules.

fix

Run 'npm install --save-dev babel-preset-compat'.

Preset threw error: unknown option '...'

Invalid or unsupported option passed to preset.

fix

Refer to source code for valid options; typical options include 'targets'.

Upgrade

Version history

0.22.4latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

5 hits · last 30 days

node

Amazon

Resources

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