Typescript + ESlint Configs

.prettierrc.js

module.exports = {
    arrowParens: "always",
    bracketSameLine: true,
    bracketSpacing: false,
    endOfLine: "lf",
    htmlWhitespaceSensitivity: "css",
    jsxSingleQuote: true,
    overrides: [
        {
            files: [
                "*.{yml,yaml}"
            ],
            options: {
                tabWidth: 2
            }
        }
    ],
    printWidth: 80,
    proseWrap: "preserve",
    quoteProps: "as-needed",
    semi: true,
    singleQuote: true,
    trailingComma: "none",
    useTabs: false,
    tabWidth: 4,
    vueIndentScriptAndStyle: true
};

eslint.config.mjs

//-- NPM Packages
import eslint from '@eslint/js';
import tseslint from 'typescript-eslint';
import prettierPlugin from 'eslint-plugin-prettier/recommended';

export default tseslint.config(
    {
        extends: [
            eslint.configs.recommended,
            ...tseslint.configs.recommendedTypeChecked,
            prettierPlugin
        ],
        files: ['**/*.ts'],
        ignores: ['**/dist/**'],
        languageOptions: {
            parserOptions: {
                projectService: true,
                tsconfigRootDir: import.meta.dirname
            }
        }
    },
    {
        files: ['**/tests/**/*.ts'],
        rules: {
            '@typescript-eslint/no-unused-expressions': 'off',
            '@typescript-eslint/unbound-method': 'off'
        }
    }
);

required_packages.json

[
    "@eslint/js",
    "@types/eslint__js",
    "eslint",
    "eslint-config-prettier",
    "eslint-plugin-prettier",
    "eslint-plugin-tsdoc",
    "prettier",
    "prettier-eslint",
    "typescript",
    "typescript-eslint"
]

tsconfig.json

{
    "compilerOptions": {
        "allowSyntheticDefaultImports": true,
        "allowUnreachableCode": false,
        "allowUnusedLabels": false,
        "alwaysStrict": true,
        "emitDecoratorMetadata": true,
        "esModuleInterop": true,
        "exactOptionalPropertyTypes": true,
        "experimentalDecorators": true,
        "forceConsistentCasingInFileNames": true,
        "incremental": true,
        "inlineSourceMap": true,
        "inlineSources": true,
        "module": "CommonJS",
        "moduleResolution": "Node",
        "newLine": "LF",
        "noEmitOnError": true,
        "noErrorTruncation": true,
        "noFallthroughCasesInSwitch": true,
        "noImplicitAny": true,
        "noImplicitOverride": true,
        "noImplicitReturns": true,
        "noImplicitThis": true,
        "noPropertyAccessFromIndexSignature": true,
        "noStrictGenericChecks": false,
        "noUncheckedIndexedAccess": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "pretty": true,
        "removeComments": true,
        "resolveJsonModule": false,
        "strict": true,
        "strictBindCallApply": true,
        "strictFunctionTypes": true,
        "strictNullChecks": true,
        "strictPropertyInitialization": true,
        "suppressExcessPropertyErrors": false,
        "suppressImplicitAnyIndexErrors": false,
        "target": "ES2018",
        "useDefineForClassFields": true,
        "useUnknownInCatchVariables": true
    },
    "exclude": [
        "node_modules"
    ]
}