eslint-config

My eslint config

I use this on projects that I develop.

Included in the readme is also Typescript, Prettier, Vitest configs for bootstrapping new projects.

Install

npm install --save-dev @sparticuz/eslint-config typescript-eslint typescript prettier vitest @tsconfig/node20 @tsconfig/strictest

Example package.json

"scripts": {
  "build": "rm -rf dist/** && tsc -p tsconfig.build.json",
  "lint": "eslint \"**/*.?(c|m)[jt]s?(x)\"",
  "test": "vitest run --coverage"
},

Example eslint.config.js

// @ts-check
import myConfig from "@sparticuz/eslint-config";
import tseslint from "typescript-eslint";

export default tseslint.config(
  {
    ignores: ["dist/**/*"],
  },
  ...myConfig,
);

Example prettier.config.js

/** @type {import("prettier").Config} */
export const config = {
  trailingComma: "all",
};
export default config;

Example Typescript config

tsconfig.json

{
  "$schema": "https://json.schemastore.org/tsconfig",
  "display": "Base Default TSConfig",
  "extends": ["@tsconfig/node20/tsconfig", "@tsconfig/strictest/tsconfig"],
  "compilerOptions": {
    "declaration": true,
    "declarationMap": true,
    "exactOptionalPropertyTypes": false,
    "lib": ["DOM", "ES2023"],
    "module": "NodeNext",
    "moduleResolution": "nodenext",
    "noUnusedLocals": false,
    "outDir": "dist",
    "resolveJsonModule": true,
    "sourceMap": true
  },
  "include": ["src", "test"]
}

tsconfig.build.json

{
  // extend your base config to share compilerOptions, etc
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "dist",
    "removeComments": true,
    "sourceMap": false
  },
  "exclude": ["test"]
}

Example vitest.config.ts

import { loadEnv } from "vite";
import { defineConfig } from "vitest/config";

export default defineConfig({
  test: {
    coverage: {
      reportOnFailure: true,
      reporter: ["json", "json-summary", "text"],
    },
    env: loadEnv("", process.cwd(), ""),
  },
});