Registry / devops / babel-preset-blueflag

babel-preset-blueflag

library1.0.1jsnpmunverified

A Babel preset encapsulating Blue Flag's opinionated configuration for transpiling JavaScript. Version 1.0.1, seems to be a single release. It automatically uses babel-preset-env to target either the last 2 browser versions or current Node.js, and includes plugins for runtime, class properties, stage-3, and React. Configuration options allow disabling specific plugins/presets and passing custom options to child presets. No updates since initial release, likely stable/small user base.

devops web-framework

npm install babel-preset-blueflag

package ↗

INSTALL

IMPORT

SIG · BABEL-PRESET-BLUEF

babel-preset-blueflag

devopsjavascriptv1.0.1

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.

babel-preset-blueflag

✓ { presets: ['blueflag'] }

✗ { presets: ['babel-preset-blueflag'] }

Use the shorthand 'blueflag' in Babel config.

default config

✓ module.exports = { presets: [['blueflag', { browser: true }]] }

✗ module.exports = { presets: ['blueflag', { browser: true }] }

Options must be in an array: ['blueflag', options].

disabled plugins

✓ ['blueflag', { disabled: ['react'] }]

✗ ['blueflag', { disabled: ['babel-preset-react'] }]

Prefixes like 'babel-preset-' or 'babel-plugin-' are omitted in the disabled list.

Shows how to install and configure babel-preset-blueflag with browser targeting, disabled array, and custom env targets.

// Install: npm install --save babel-preset-blueflag // In .babelrc or babel.config.js: module.exports = { presets: [ ['blueflag', { browser: process.env.BROWSER === 'true', disabled: [], config: { env: { targets: { browsers: '> 1%' } } } }] ] };

Debug

Known issues

deprecatedbabel-preset-stage-3 is deprecated in Babel 7+

fix

Replace with individual plugins or @babel/preset-env with proposals.

affects: >=1.0

gotchaOption 'library' currently does nothing

fix

Ignore or remove 'library' configuration until implemented.

affects: 1.0.1

gotchaDisabled array requires plugin/preset names without prefix

fix

Use 'react', not 'babel-preset-react'.

affects: >=1.0

Errors

Common errors & fixes

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

Using an outdated Babel version that expects function presets.

fix

Upgrade to Babel 7+ or ensure preset is loaded correctly.

Module not found: Error: Can't resolve 'babel-preset-env'

babel-preset-env is not installed as a direct dependency when using npm v7+ with auto-peer-deps off.

fix

Run npm install babel-preset-env --save-dev.

Upgrade

Version history

1.0.1latest on npm

Audit

Dependencies

babel-preset-envrequiredCore preset for environment-based transpilation

babel-plugin-transform-runtimerequiredRuntime transform plugin

babel-plugin-transform-class-propertiesrequiredClass properties transform

babel-preset-reactrequiredReact JSX and display name transforms

babel-preset-stage-3requiredStage 3 proposal transforms

Agent activity

9 hits · last 30 days

node

OpenAI (training)

Resources

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