eslint.config.mjs

import { defineConfig, globalIgnores } from "eslint/config";
import globals from "globals";
import path from "node:path";
import { fileURLToPath } from "node:url";
import js from "@eslint/js";
import { FlatCompat } from "@eslint/eslintrc";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const compat = new FlatCompat({
    baseDirectory: __dirname
    ,recommendedConfig: js.configs.recommended
    ,allConfig: js.configs.all
});

export default defineConfig([globalIgnores(["**/node_modules/", "test/node_modules/**/*"]), {
    extends: compat.extends("eslint:recommended")
    ,languageOptions: {
        globals: {
            ...Object.fromEntries(Object.entries(globals.commonjs).map(([key]) => [key, "off"]))
            ,...globals.node
            ,Atomics: "readonly"
            ,SharedArrayBuffer: "readonly"
        }
        ,ecmaVersion: 2020
        ,sourceType: "module"
    }
    ,rules: {
        "semi": ["error", "always"]
        ,"quotes": ["error", "double"]
        ,"indent": ["error", 4, {
            SwitchCase: 1
        }]
        ,"dot-location": ["error", "property"]
        ,"dot-notation": ["error"]
        ,"linebreak-style": ["error", "unix"]
        ,"newline-per-chained-call": ["error", {
            ignoreChainWithDepth: 2
        }]
        ,"brace-style": ["error", "1tbs", {
            allowSingleLine: true
        }]
        ,"curly": ["error", "all"]
        ,"eol-last": ["error", "always"]
        ,"no-multiple-empty-lines": ["error", {
            max: 2
            ,maxEOF: 1
            ,maxBOF: 0
        }]
        ,"no-trailing-spaces": ["error"]
        ,"space-before-blocks": ["error", {
            functions: "always"
            ,keywords: "always"
            ,classes: "always"
        }]
        ,"block-spacing": ["error", "always"]
        ,"keyword-spacing": ["error", {
            before: true
            ,after: true
        }]
        ,"spaced-comment": ["warn", "always", {
            exceptions: ["_", "-", "="]
        }]
        ,"comma-dangle": ["error", "never"]
        ,"comma-style": ["warn", "first"]
        ,"guard-for-in": ["error"]
        ,"eqeqeq": ["error", "always"]
        ,"no-extra-bind": ["error"]
        ,"no-eval": ["error"]
        ,"no-unused-vars": ["error", {
            caughtErrors: "none"
        }]
        ,"no-useless-assignment": [0]
        ,"no-constant-binary-expression": [0]
    }
}]);