Registry / testing / eslint-plugin-svelte

eslint-plugin-svelte

library3.17.1jsnpmunverified

Official ESLint plugin for Svelte that leverages AST from svelte-eslint-parser. Current stable version is 3.17.1, with active release cadence (multiple minor/patch releases per month). Provides 80+ rules covering accessibility, best practices, style, and Svelte-specific patterns. Supports Svelte 3, 4, and 5. Requires ESLint v8.57.1+, v9+ or v10+. Ships TypeScript definitions. Recommended over deprecated eslint-plugin-svelte3. Integrates with flat config (eslint.config.js) and provides recommended configs.

testing

github ↗package ↗homepage ↗

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.

ESM-only since v3; CommonJS require will fail. Use default import to get the plugin object for flat config.

import svelte from 'eslint-plugin-svelte'

defineConfig is from eslint package, not from eslint-plugin-svelte. Common mistake is to import it from eslint-plugin-svelte.

import { defineConfig } from 'eslint/config'

configs is a property of the default export, not a named export. Use svelte.configs.recommended.

import svelte from 'eslint-plugin-svelte'; export default [... svelte.configs.recommended, ...]

Flat config using TypeScript-ESLint parser for Svelte files and recommending both TypeScript and Svelte rules.

// eslint.config.js import svelte from 'eslint-plugin-svelte'; import globals from 'globals'; import ts from 'typescript-eslint'; export default [ { ignores: ['build/', 'dist/', 'node_modules/'] }, ...ts.configs.recommended, ...svelte.configs.recommended, { languageOptions: { globals: { ...globals.browser, ...globals.node } } }, { files: ['**/*.svelte', '**/*.svelte.ts'], languageOptions: { parserOptions: { parser: ts.parser } } } ];

Debug

Known footguns

breakingeslint-plugin-svelte >= 2.0.0 no longer supports CommonJS require(). Use ESM imports only.

deprecatedeslint-plugin-svelte3 is deprecated. Use eslint-plugin-svelte instead.

gotchaFlat config (eslint.config.js) is required for v3+. The plugin no longer supports .eslintrc files.

gotchasvelte.config.js must be imported in eslint.config.js if using runes or Svelte 5 features; otherwise parser may fail.

gotchaWhen using TypeScript, you must set `parserOptions.parser` to the TypeScript parser (e.g., `typescript-eslint/parser`).

Upgrade

Version history

Breaking-change detection hasn't run for this library yet.

Audit

Security & dependencies

CVE tracking and dependency tree are planned for a later release.

Agent activity

13 hits · last 30 days

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Resources

githubhttps://github.com/sveltejs/eslint-plugin-svelte ↗

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

homepagehttps://svelte.dev/docs/accessibility ↗