Registry / testing / eslint-plugin-no-null

eslint-plugin-no-null

library1.0.2jsnpmunverified

An ESLint plugin that provides a single rule to disallow null literals, enforcing the use of undefined instead. Version 1.0.2 is the latest stable release. It has no dependencies beyond ESLint (peer dependency >=3.0.0) and is not actively maintained (last release likely older). Differentiators: simple, focused rule for teams preferring undefined over null.

testing

npm install eslint-plugin-no-null

github ↗package ↗

INSTALL

IMPORT

SIG · ESLINT-PLUGIN-NO-N

eslint-plugin-no-null

testingjavascriptv1.0.2

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

✓ import noNull from 'eslint-plugin-no-null'

✗ const noNull = require('eslint-plugin-no-null')

Plugin is a default export; CJS require also works but ESM is preferred for modern projects.

Shows installation, configuration, and usage of the no-null rule in an ESLint config.

// Install ESLint and plugin // npm install eslint eslint-plugin-no-null --save-dev // .eslintrc.json { "plugins": ["no-null"], "rules": { "no-null/no-null": "error" } } // Example file: app.js // Disallowed: let x = null; // Allowed: let y = undefined;

Debug

Known issues

deprecatedPlugin is no longer actively maintained; may not work with latest ESLint versions.

fix

Consider alternatives like ESLint's built-in 'no-restricted-syntax' rule or 'unicorn/no-null'.

affects: >=1.0.0

gotchaRule only flags null literals, not expressions that may evaluate to null.

fix

Use 'no-restricted-syntax' with a custom selector for more comprehensive null detection.

affects: >=1.0.0

Errors

Common errors & fixes

ESLint: Failed to load plugin 'no-null': Cannot find module 'eslint-plugin-no-null'

The plugin is not installed or missing from node_modules.

fix

Run npm install eslint-plugin-no-null --save-dev

ESLint: Configuration for rule 'no-null/no-null' is invalid: Value "2" is invalid for rule severity.

Using numeric severity instead of string in ESLint config.

fix

Change "no-null/no-null": 2 to "no-null/no-null": "error"

Upgrade

Version history

1.0.2latest on npm

Audit

Dependencies

eslintrequiredpeer dependency required for plugin to function

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/nene/eslint-plugin-no-null ↗

packagehttps://www.npmjs.com/package/eslint-plugin-no-null ↗