Registry / testing / eslint-plugin-es5

eslint-plugin-es5

library1.5.0jsnpmunverified

ESLint plugin that enforces ES5-only code by forbidding ES2015+ syntax. Version 1.5.0 (stable, no recent updates). Maintains a comprehensive set of rules covering arrow functions, classes, destructuring, modules, generators, and more. Includes fixable rules for many features. Unlike similar plugins, provides preset configurations like `plugin:es5/no-es2015` to ban all ES2015 features at once. Requires ESLint >=3.

testing

npm install eslint-plugin-es5

github ↗package ↗

INSTALL

IMPORT

SIG · ESLINT-PLUGIN-ES5

eslint-plugin-es5

testingjavascriptv1.5.0

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.

plugin

✓ plugins: ['es5']

✗ ESLint config should use `plugins` array, not import

Added to ESLint config under `plugins` key.

rules

✓ 'es5/no-arrow-functions': 'error'

✗ 'es5/no-arrow-functions': 2

Use string severity 'error' or 'warn', not numeric.

preset

✓ extends: ['plugin:es5/no-es2015']

✗ extends: ['eslint:recommended', 'es5/no-es2015']

Preset is accessed via `plugin:es5/no-es2015`, not direct name.

Configures ESLint to use eslint-plugin-es5 with specific rules and a preset to enforce ES5 syntax.

// .eslintrc.json { "plugins": ["es5"], "rules": { "es5/no-arrow-functions": "error", "es5/no-template-literals": "warn", "es5/no-block-scoping": ["error", { "let": true, "const": true }] } } // Or use preset to forbid all ES2015: { "extends": ["eslint:recommended", "plugin:es5/no-es2015"], "rules": { "es5/no-for-of": "error" } }

Debug

Known issues

gotchaRules may conflict with other ESLint rules that allow ES2015 features.

fix

Disable conflicting rules or ensure es5 rules are evaluated last.

affects: >=1.0.0

gotchaPlugin does not handle TypeScript or JSX - those parsers may allow ES2015 syntax even with plugin enabled.

fix

Use TypeScript-specific plugins or parser options to enforce ES5.

affects: >=1.0.0

deprecatedPreset `plugin:es5/no-es2015` is still available but not updated for newer ES features beyond ES2016.

fix

Consider using `plugin:es5/no-es2016` for ES2016 restrictions or manually configure rules for later versions.

affects: <1.5.0

Errors

Common errors & fixes

Error: Cannot find module 'eslint-plugin-es5'

Plugin not installed or not in node_modules

fix

Run `npm install --save-dev eslint-plugin-es5`

Configuration for rule "es5/no-arrow-functions" is invalid: Severity should be one of the following: 0 = off, 1 = warn, 2 = error (you passed '"error"')

Using string severity instead of numeric in some ESLint config contexts

fix

Use numeric severity: 'error' => 2 or use string in modern ESLint configs (check ESLint version)

Rule 'es5/no-block-scoping' has been deprecated and replaced by 'es5/no-const' and 'es5/no-let'

Older versions had separate rules, but unified in this plugin

fix

Use 'es5/no-block-scoping' with options or switch to individual rules if needed

Upgrade

Version history

1.5.0latest on npm

Audit

Dependencies

eslintrequiredPeer dependency required for plugin to work

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/nkt/eslint-plugin-es5 ↗

packagehttps://www.npmjs.com/package/eslint-plugin-es5 ↗