babel-7-jest

library21.3.3jsnpmunverified

Deprecated Jest transform plugin bridging babel-jest with @babel/core v7 before official support existed. Latest version 21.3.3, originally required @babel/core ^7.0.0-alpha/beta. Now superseded by babel-jest with babel-core@7.0.0-bridge.0. Do not use for new projects; official solution is stable and actively maintained.

testing

npm install babel-7-jest

github ↗package ↗

INSTALL

IMPORT

SIG · BABEL-7-JEST

babel-7-jest

testingjavascriptv21.3.3

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-7-jest

✓ "babel-7-jest" (string in jest config)

✗ import babel7Jest from 'babel-7-jest'

Used as a transform string in Jest configuration, not imported in source code.

Demonstrates deprecated setup: configure Jest to use babel-7-jest transform for JavaScript files.

// package.json snippet (not runnable alone) { "scripts": { "test": "jest" }, "jest": { "transform": { ".js$": "babel-7-jest" } }, "devDependencies": { "@babel/core": "^7.0.0", "babel-7-jest": "^21.3.3", "jest": "^21.0.0" } } // No JS code needed; config-based transform.

Debug

Known issues

deprecatedPackage is deprecated; use official babel-jest with babel-core@7.0.0-bridge.0 instead.

fix

npm uninstall babel-7-jest && npm install --save-dev babel-jest @babel/core babel-core@7.0.0-bridge.0

affects: >=0.0.0

breakingRequires exact @babel/core version matching peer dep (^7.0.0-alpha/beta).

fix

Use @babel/core ^7.0.0

affects: >=21.0.0

gotchaNot compatible with Jest versions beyond 21.x due to API changes.

fix

Upgrade to official babel-jest for Jest 22+

affects: >=21.0.0

Errors

Common errors & fixes

Cannot find module '@babel/core'

@babel/core not installed or peer dep not satisfied

fix

npm install --save-dev @babel/core@^7.0.0

babel-7-jest is deprecated. Use babel-jest instead.

Using deprecated package; npm warns on install

fix

Remove babel-7-jest and configure babel-jest as per official docs

Upgrade

Version history

21.3.3latest on npm

Audit

Dependencies

@babel/corerequiredpeer dependency required for Babel transformation

Agent activity

20 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/Sneezoo/babel-7-jest ↗

packagehttps://www.npmjs.com/package/babel-7-jest ↗