Linted NPM | npm.io

`linted`

DO NOT USE - DOCUMENTATION IS SIGNIFICANTLY OUTDATED AS OF AUGUST 4, 2024

ESLint mono-plugin bundler with strict, opinionated defaults for (Stylistic) JavaScript, TypeScript, Svelte, HTML, Tailwind/CSS, JSON, JSONC, YAML, and Mocha.

Languages

_See language support roadmap._

Features

Zero-Dependency

No need to install 17 plugins and 12 parsers: each language's latest plugin is bundled and configured.

Zero-Config

No need to remember each plugin's parserOptions; you won't have to do this just to enable Svelte linting:

    // lint TypeScript blocks in Svelte
    plugins: {
      "@stylistic": stylistic,
      "@typescript-eslint": ts,
      svelte,
    },
    languageOptions: {
      ecmaVersion: "latest",
      sourceType: "module",
      parser: svelteParser,
      parserOptions: {
        parser: tsParser,
        ecmaVersion: "latest",
        sourceType: "module",
        project: "tsconfig.json",
        extraFileExtensions: [".svelte"],
      },
    },
    processor: "svelte/svelte",

Zero-Arugment API

linted();

Two-Statement `eslint.config.js`

import linted from "linted";

export default linted();

Total Control via Optional Arguments

WIP for v14.1, currently inaccurate.

includes (scoped glob patterns)
ignores (global glob patterns and other options)
overrides (scoped rule statements)

`includes` (Scoped)

import linted from "linted";

linted(
  {
    /** includes **/
    js: [
      "scripts/**/*/.{js,mjs}",
      "*.config.js",
    ], /* example: array of glob patterns to lint using JavaScript rules */
    ts: [
      "src/**/*.ts",
      "*.config.ts",
    ],

    // svelte: [],
    // html: [],

    /* ...json, jsonc, yml, */
  },
)

`ignores` (Global)

import linted from "linted";

linted(
  { /** includes **/ },
  {
    /** ignores **/
    gitignore: true, /* (default) never lint any git-ignored file */
    ignoreArtifacts: true, /* (default) never lint "**/*/package-lock.json" */
    global: [], /* array of glob patterns to never lint */
  },
)

`overrides` (Scoped)

linted(
  { /** includes **/ },
  { /** ignores **/ },
  {
    /** overrides **/
    overrideJs: {}, /* js rule overrides */
    overrideTs: {
      /* Overrides apply to `ts` scope,
       * but NOT to `js` scope,
       * NOR to `svelte` scope.
       */
      "no-unused-vars": "off", /* example: ESLint base rule */
      "@typescript-eslint/indent": "warn", /* example: TypeScript plugin rule */
    }, /* js rule overrides */

    /* ...overrideTs, overrideSvelte, overrideHtml, overrideJson, overrideJsonc, overrideYml, */
  },
)

Limitation

In TypeScript projects, skipLibCheck must be true.

Enable `skipLibCheck`

By default, skipLibCheck is false. To set it to true:

`tsconfig.json`

{
  "compilerOptions": {
    "skipLibCheck": true,
  },
}

...or `tsc` CLI option

tsc --skipLibCheck

Install

Install eslint and linted.
```
npm i -D eslint@^8.57 linted
```
Create eslint.config.js in your project root.

In eslint.config.js:

Import function linted.
```
import linted from "linted";
```

Export linted with optional arguments:

import linted from "linted";

export default linted(
  // ...
);

Roadmap

v11

Mocha

Mocha

Tailwind PostCSS

HTML Connectors

Embedded TypeScript
Embedded CSS
Svelte Interaction TBD
- .svelte-embedded HTML (on top of Svelte HTML rules)
- .html files in Svelte projects (e.g. title not required)
- Should Svelte-Linter handle all .html / HTML-embedded linting for Svelte projects, and HTML-Linter only handles non-Svelte projects?

JSON (Custom Schema Validation)

JSON Custom Schema Validation

Rule Logic (Advanced)

What is `scope`?

Each scope maps to a unique language:

js: JavaScript
ts: TypeScript
svelte: Svelte
html: HTML
json: JSON
jsonc: JSONC
yml: YAML

Rules

Each scope supports:

all base ESLint rules
all rules from its language's plugins

Default Rules

Each language has a set of default rules.

Language-Aggregate `scope`

A language can be an extension of or depend on another language.

For example:

TypeScript extends JavaScript
Svelte depends on TypeScript (which extends JavaScript)

For such a language, its scope's default rules are aggregated with the default rules of extended or consumed languages by scope precedence:

js: js
ts: js < ts
svelte: js < ts < svelte
html: html
json: json
jsonc: json < jsonc
yml: yml

Files

Global Ignores

`.gitignore`

By default, linted ignores all files in .gitignore. This behavior can be disabled.

`package-lock.json`

**/*.package-lock.json is always skipped. This cannot be overriden.

`ignores`

Additional glob patterns supplied if matched by a file will skip linting that file, even if a scope pattern matches the file.

Scoped Includes

Files specified in scope are appended to the following default files:

  {
    js: [
      "{src,static}/**/*.{js,mjs,cjs}",
      "*.{js,mjs,cjs}",
    ],
    ts: [
      "{src,static}/**/*.{ts,mts,cts}",
      "*.{ts,mts,cts}",
    ],
    svelte: ["{src,static}/**/*.svelte"],
    html: [
      "{src,static}/**/*.html",
      "*.html",
    ],
    json: [
      "{src,static}/**/*.json",
      "*.json",
    ],
    jsonc: [
      "tsconfig.json",
      "{src,static}/**/*.jsonc",
      "*.jsonc",
    ],
    yml: [
      ".github/workflows/*.{yml,yaml}",
      "{src,static}/**/*.{yml,yaml}",
      "*.{yml,yaml}",
    ],
  },

Scope Conflict

If a given file matches more than one scope glob, then the set of all matching scopes' rules are applied to the file.
If any rule is specified in more than one scope matching a given file, the specifies a rule, then the highest-precedence scope's rule specification wins.

Scope Precedence (low to high)

js
ts
svelte
html
json
jsonc
yml
ignores (global)

Override

Overrides are per-scope.

Example

overrideTs rules apply to files which:

✅ ONLY match scope ts.
✅ match scope ts and any number of lower precedence scopes (e.g. js).
overrideTs rules do NOT apply to files which:
❌ match scope ts and at least one higher precedence scope (e.g. svelte), even if the higher precedence scope includes ts language default rules (e.g. svelte includes ts default rules, but NOT overrideTs rules).

eslint eslint-config eslint-plugin linter formatter typescript javascript stylistic svelte sveltekit html css mocha tailwindcss json jsonc yaml

svelte @eslint/css @eslinted/core eslint-plugin-yml typescript-eslint @eslinted/defaults yaml-eslint-parser @html-eslint/parser eslint-plugin-jsonc eslint-plugin-mocha jsonc-eslint-parser eslint-plugin-svelte svelte-eslint-parser @stylistic/eslint-plugin eslint-plugin-chai-expect @html-eslint/eslint-plugin eslint-plugin-chai-friendly

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linted

Languages

Web

Data

Library

Features

Zero-Dependency

Zero-Config

Zero-Arugment API

Two-Statement eslint.config.js

Total Control via Optional Arguments

includes (Scoped)

ignores (Global)

overrides (Scoped)

Limitation

Enable skipLibCheck

tsconfig.json

...or tsc CLI option

Install

Roadmap

v11

Mocha

Tailwind PostCSS

HTML Connectors

JSON (Custom Schema Validation)

Rule Logic (Advanced)

What is scope?

Rules

Default Rules

Language-Aggregate scope

Files

Global Ignores

.gitignore

package-lock.json

ignores

Scoped Includes

Scope Conflict

Scope Precedence (low to high)

Override

Example

`linted`

Two-Statement `eslint.config.js`

`includes` (Scoped)

`ignores` (Global)

`overrides` (Scoped)

Enable `skipLibCheck`

`tsconfig.json`

...or `tsc` CLI option

What is `scope`?

Language-Aggregate `scope`

`.gitignore`

`package-lock.json`

`ignores`