Registry / devops / eslint-plugin-no-unused-vars-rest

eslint-plugin-no-unused-vars-rest

library1.0.6jsnpmunverified

DEPRECATED ESLint plugin (v1.0.6, final release) that extended the core no-unused-vars rule with an ignoreDestructuredVarsWithRest option, allowing unused variables in destructuring patterns containing rest properties. As of ESLint 3.15.0 (December 2016), the core no-unused-vars rule natively supports this behavior via the ignoreRestSiblings option. This plugin is no longer maintained and should not be used in new projects. It only supports ESLint 3.x and has no releases beyond v1.0.6.

devops

npm install eslint-plugin-no-unused-vars-rest

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · ESLINT-PLUGIN-NO-U

eslint-plugin-no-unused-vars-rest

devopsjavascriptv1.0.6

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.

Plugin

✓ In .eslintrc: { "plugins": ["no-unused-vars-rest"], "rules": { "no-unused-vars-rest/no-unused-vars": [2, { "ignoreDestructuredVarsWithRest": true }] } }

✗ Using plugin without disabling core no-unused-vars rule

Plugin provides a single rule; you must disable the core 'no-unused-vars' rule to avoid conflicts.

Recommended config

✓ In .eslintrc: { "extends": ["plugin:no-unused-vars-rest/recommended"] }

✗ Using plugin:no-unused-vars-rest/recommended without also disabling core rule

The recommended config automatically disables the core rule and enables the plugin rule with ignoreDestructuredVarsWithRest: true.

Rule config (error level)

✓ "no-unused-vars-rest/no-unused-vars": ["error", { "ignoreDestructuredVarsWithRest": true }]

✗ "no-unused-vars-rest/no-unused-vars": [2, { "ignoreDestructuredVarsWithRest": true }]

ESLint supports both integer (0/1/2) and string (off/warn/error) severities. The plugin accepts the same options as core no-unused-vars plus ignoreDestructuredVarsWithRest.

Shows how to configure the plugin to ignore unused variables in destructuring with rest, and demonstrates the feature with a common pattern.

// Install: npm install --save-dev eslint eslint-plugin-no-unused-vars-rest // .eslintrc.json { "plugins": ["no-unused-vars-rest"], "rules": { "no-unused-vars": "off", "no-unused-vars-rest/no-unused-vars": ["error", { "ignoreDestructuredVarsWithRest": true }] } } // Example file: test.js const { extra, ...rest } = { a: 1, b: 2 }; // 'extra' is used in destructuring but not referenced -> normally an error, now allowed module.exports = rest;

Debug

Known issues

deprecatedThis plugin is deprecated; functionality is now in core ESLint no-unused-vars with ignoreRestSiblings option since ESLint 3.15.0.

fix

Upgrade to ESLint >=3.15.0 and use core rule with ignoreRestSiblings: true instead of this plugin. Example: { 'rules': { 'no-unused-vars': ['error', { 'ignoreRestSiblings': true }] } }

affects: >=1.0.0

breakingIncompatible with ESLint 4+ because of peer dependency on eslint ^3.0.0.

fix

Do not install this plugin with ESLint 4+. Use core no-unused-vars rule instead.

affects: >=1.0.0

gotchaYou must disable the core no-unused-vars rule; otherwise both rules will run and you may get duplicate errors or contradictory behavior.

fix

Add 'no-unused-vars': 'off' or 0 to your ESLint config.

affects: >=1.0.0

Errors

Common errors & fixes

ESLint configuration error: Cannot find module 'eslint-plugin-no-unused-vars-rest'

Plugin not installed or not in node_modules.

fix

Run npm install eslint-plugin-no-unused-vars-rest --save-dev

ESLint configuration error: Rule 'no-unused-vars-rest/no-unused-vars' is not available

Plugin not listed in 'plugins' section of ESLint config.

fix

Add '"no-unused-vars-rest"' to the plugins array in your ESLint config.

Unused variable: 'extra'

IgnoreDestructuredVarsWithRest not enabled or core no-unused-vars rule not disabled.

fix

Enable the plugin rule with ignoreDestructuredVarsWithRest: true and disable core no-unused-vars.

Upgrade

Version history

1.0.6latest on npm

Audit

Dependencies

eslintrequiredpeer dependency; plugin requires ESLint ^3.0.0 and is incompatible with ESLint 2.x or 4+

Agent activity

7 hits · last 30 days

node

Resources

githubgit://github.com/bryanrsmith/eslint-plugin-no-unused-vars-rest ↗

packageeslint-plugin-no-unused-vars-rest ↗

homepagehttps://github.com/bryanrsmith/eslint-plugin-no-unused-vars-rest ↗