Overview

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Modern JavaScript

Upgrade your codebase to ES2022+ syntax with auto-fixable rules.

Changelog

View version history and updates

Security-focused ESLint plugin.

Description

This plugin provides Security-focused ESLint plugin. By using this plugin, you can proactively identify and mitigate security risks across your entire codebase.

Interlace fosters strength through integration. Instead of stacking isolated rules, we interlace security directly into your workflow to create a resilient fabric of code. We believe tools should guide rather than gatekeep, providing educational feedback that strengthens the developer with every interaction.

Getting Started

To check out the guide, visit eslint.interlace.tools. 📚
要查看中文指南, 请访问 eslint.interlace.tools. 📚
가이드 문서는 eslint.interlace.tools에서 확인하실 수 있습니다. 📚
ガイドは eslint.interlace.toolsでご確認ください。 📚
Para ver la guía, visita eslint.interlace.tools. 📚
للاطلاع على الدليل، قم بزيارة eslint.interlace.tools. 📚

npm install eslint-plugin-modernization --save-dev

⚙️ Configuration Presets

Preset	Description
`recommended`	Balanced modernization for most projects
`strict`	All rules as errors for aggressive modernization

🏢 Usage Example

// eslint.config.js
import modernization from 'eslint-plugin-modernization';

export default [
  modernization.configs.recommended,

  // Or be strict about modernization
  // modernization.configs.strict,
];

Why These Rules?

`no-instanceof-array`

instanceof Array fails across different realms (iframes, workers). Array.isArray() is the correct, reliable check.

// ❌ Bad: Fails across realms
if (value instanceof Array) {
}

// ✅ Good: Works everywhere
if (Array.isArray(value)) {
}

`prefer-at`

Array.at() provides cleaner negative index access (ES2022+).

// ❌ Bad: Verbose negative index access
const last = arr[arr.length - 1];

// ✅ Good: Clean ES2022+ syntax
const last = arr.at(-1);

`prefer-event-target`

EventTarget is the native browser API and doesn't require Node.js polyfills.

// ❌ Bad: Requires polyfill in browsers
import { EventEmitter } from 'events';

// ✅ Good: Native browser API
const target = new EventTarget();

Rules

Legend

Icon	Description
💼	Recommended: Included in the recommended preset.
⚠️	Warns: Set towarn in recommended preset.
🔧	Auto-fixable: Automatically fixable by the `--fix` CLI option.
💡	Suggestions: Providing code suggestions in IDE.
🚫	Deprecated: This rule is deprecated.

Rule	CWE	OWASP	CVSS	Description	💼	⚠️	🔧	💡	🚫
no-instanceof-array				ESLint rule documentation for no-instanceof-array
prefer-at				ESLint rule documentation for prefer-at
prefer-event-target				ESLint rule documentation for prefer-event-target

Part of the Interlace ESLint Ecosystem — AI-native security plugins with LLM-optimized error messages:

Plugin	Downloads	Description
`eslint-plugin-secure-coding`		General security rules & OWASP guidelines.
`eslint-plugin-pg`		PostgreSQL security & best practices.
`eslint-plugin-crypto`		NodeJS Cryptography security rules.
`eslint-plugin-jwt`		JWT security & best practices.
`eslint-plugin-browser-security`		Browser-specific security & XSS prevention.
`eslint-plugin-express-security`		Express.js security hardening rules.
`eslint-plugin-lambda-security`		AWS Lambda security best practices.
`eslint-plugin-nestjs-security`		NestJS security rules & patterns.
`eslint-plugin-mongodb-security`		MongoDB security best practices.
`eslint-plugin-vercel-ai-security`		Vercel AI SDK security hardening.
`eslint-plugin-import-next`		Next-gen import sorting & architecture.

📄 License

View README.md on GitHub →

Rules (5)