Registry / testing / eslint-formatter-junit

eslint-formatter-junit

library9.0.1jsnpmunverified

Standalone npm package for ESLint's official JUnit XML formatter. Version 9.0.1 targets Node ^18.18.0 || ^20.9.0 || >=21.1.0 and ships TypeScript types. Released alongside ESLint releases, it extracts the built-in JUnit formatter into a separate module for use in CI/CD pipelines (e.g., Jenkins). No external dependencies. Different from similar packages by being directly sourced from ESLint's official source.

testing

npm install eslint-formatter-junit

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · ESLINT-FORMATTER-J

eslint-formatter-junit

testingjavascriptv9.0.1

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import junitFormatter from 'eslint-formatter-junit'

✗ const { default: junitFormatter } = require('eslint-formatter-junit')

ESM default export. In CommonJS use require('eslint-formatter-junit').default

junitFormatter

✓ import junitFormatter from 'eslint-formatter-junit'

✗ import { junitFormatter } from 'eslint-formatter-junit'

Named export not available; library only exports a default function

ESLint

✓ import { ESLint } from 'eslint'

✗ import { ESLint } from 'eslint-formatter-junit'

The ESLint class is from the 'eslint' package, not this formatter

Runs ESLint on JS files and outputs JUnit XML report using the official formatter.

import { ESLint } from 'eslint'; import junitFormatter from 'eslint-formatter-junit'; const eslint = new ESLint(); const results = await eslint.lintFiles(['**/*.js']); const xml = junitFormatter(results, results); console.log(xml);

Debug

Known issues

breakingESLint v9 drops support for Node <18.18

fix

Upgrade Node to ^18.18.0 || ^20.9.0 || >=21.1.0

affects: >=9.0.0

gotchaDefault import only; no named export exists

fix

Use default import: import f from 'eslint-formatter-junit'

affects: >=0.0.0

deprecatedThe second argument to formatter (results) is no longer used but kept for compatibility

fix

Pass same results array twice: junitFormatter(results, results)

affects: <9.0.0

gotchaRequires ESLint loader/message data — cannot format arbitrary objects

fix

Pass result objects from eslint.lintFiles() or CLIEngine.getResults()

affects: >=0.0.0

Errors

Common errors & fixes

TypeError: junitFormatter is not a function

Incorrect import syntax in CommonJS

fix

Use const junitFormatter = require('eslint-formatter-junit').default

Error [ERR_REQUIRE_ESM]: require() of ES Module not supported

Using require() on an ESM-only package

fix

Use import() dynamic import or set type:"module" in package.json

error:0308010C:digital envelope routines::unsupported

OpenSSL incompatibility on Node 17+

fix

Set NODE_OPTIONS=--openssl-legacy-provider or downgrade to Node 16

Upgrade

Version history

9.0.1latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/fregante/eslint-formatters ↗

packageeslint-formatter-junit ↗

homepagehttps://github.com/fregante/eslint-formatters/tree/main/packages/eslint-formatter-junit ↗