Registry / testing / eslint-plugin-ext

eslint-plugin-ext

library0.1.0jsnpmunverified

eslint-plugin-ext is an ESLint plugin (version 0.1.0) that provides additional lint rules, starting with 'lines-between-object-properties' which enforces blank lines between object properties, based on eslint's built-in 'lines-between-class-members'. The rule allows standard options plus an extra 'exceptBetweenSingleLines' option. The package is minimal and likely low maintenance; it is not part of a broader ecosystem and has no recent updates. It differentiates by offering a specific rule for object literals that is missing from core ESLint.

testing

npm install eslint-plugin-ext

github ↗package ↗

INSTALL

IMPORT

SIG · ESLINT-PLUGIN-EXT

eslint-plugin-ext

testingjavascriptv0.1.0

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.

eslint-plugin-ext (plugin)

✓ plugins: ['ext']

✗ plugins: ['eslint-plugin-ext']

ESLint plugin naming convention: omit the 'eslint-plugin-' prefix. This is required for ESLint to resolve the plugin.

lines-between-object-properties rule

✓ "ext/lines-between-object-properties": ["error", "always", { "exceptBetweenSingleLines": true }]

✗ "lines-between-object-properties": "error"

Rules must be namespaced with the plugin name (ext/). Missing the namespace is the most common mistake.

ESLint config (JSON)

✓ { "plugins": ["ext"], "rules": { "ext/lines-between-object-properties": ["error", "always"] } }

✗ { "plugins": ["eslint-plugin-ext"], "rules": { "lines-between-object-properties": "error" } }

Common mistake: using full package name in plugins array and not prefixing the rule with 'ext/'.

Shows how to configure the plugin in .eslintrc.json and demonstrates the rule behavior with bad/good object examples.

// .eslintrc.json { "plugins": ["ext"], "rules": { "ext/lines-between-object-properties": ["error", "always", { "exceptBetweenSingleLines": true }] } } // Example object (bad): no blank lines between properties export const bad = { a: 1, b: 2, c() {} } // Example object (good): blank lines between logical groups export const good = { a: 1, b: 2, c() {} }

Debug

Known issues

gotchaPlugin must be configured in ESLint's 'plugins' array, not 'extends' or 'rules' directly.

fix

Add 'plugins: ["ext"]' to your ESLint configuration.

affects: >=0.0.0

gotchaRule name must be prefixed with 'ext/'. Using just 'lines-between-object-properties' will not work.

fix

Use 'ext/lines-between-object-properties' as the rule key.

affects: >=0.0.0

gotchaThe 'exceptBetweenSingleLines' option is specific to this plugin and not available in ESLint core.

fix

Ensure this option is only used with this plugin's rule.

affects: >=0.0.0

deprecatedESLint flat config (eslint.config.js) does not support the legacy 'plugins' array format. This plugin may not be compatible with flat config.

fix

Use legacy .eslintrc format or check plugin documentation for flat config support.

affects: 0.1.0

Errors

Common errors & fixes

Error: Failed to load plugin 'ext' declared in '.eslintrc.json': Cannot find module 'eslint-plugin-ext'

Package not installed, or wrong plugin name in ESLint config.

fix

Run 'npm install eslint-plugin-ext --save-dev' and ensure 'plugins' array uses 'ext' (without prefix).

Configuration for rule 'ext/lines-between-object-properties' is invalid: Unknown option 'exceptBetweenSingleLines'

The option was misspelled or placed at wrong level.

fix

Use 'exceptBetweenSingleLines' (note: 'single' not 'single'). Option must be inside an object as third element of the array.

ESLint couldn't find the plugin 'eslint-plugin-ext' in the configuration.

Using full package name in plugins array.

fix

Change 'plugins' to ["ext"] (omit 'eslint-plugin-' prefix).

Upgrade

Version history

0.1.0latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

6 hits · last 30 days

node

Resources

githubhttps://github.com/jiangfengming/eslint-plugin-ext ↗

packagehttps://www.npmjs.com/package/eslint-plugin-ext ↗