.eslintrc.js

module.exports = {
  root: true,
  env: {
    browser: true,
    es2021: true,
  },
  parser: "@typescript-eslint/parser",
  parserOptions: {
    ecmaVersion: "latest",
    sourceType: "module",
    project: ["./tsconfig.json"],
  },
  plugins: [
    /**
     * Plugin with ruleset required by eslint-config-airbnb-typescript
     * https://github.com/iamturns/eslint-config-airbnb-typescript#2-install-eslint-plugins
     */
    "@typescript-eslint/eslint-plugin",

    /**
     * Plugin to lint import/export syntax
     * https://github.com/import-js/eslint-plugin-import
     */
    "eslint-plugin-import",

    /**
     * Plugin to report misformatting as lint violations
     * https://github.com/prettier/eslint-plugin-prettier
     */
    "eslint-plugin-prettier",

    /**
     * Plugin to lint ESLint plugins
     * https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin
     */
    "eslint-plugin-eslint-plugin",
  ],
  extends: [
    /**
     * Config for Airbnb style guide for TS, /base to remove React rules
     *
     * https://github.com/iamturns/eslint-config-airbnb-typescript
     * https://github.com/airbnb/javascript/tree/master/packages/eslint-config-airbnb-base/rules
     */
    "eslint-config-airbnb-typescript/base",

    /**
     * Config for rules recommended by typescript-eslint (without type checking)
     *
     * https://github.com/typescript-eslint/typescript-eslint/blob/1c1b572c3000d72cfe665b7afbada0ec415e7855/packages/eslint-plugin/src/configs/recommended.ts
     */
    "plugin:@typescript-eslint/recommended",

    /**
     * Config to disable ESLint rules covered by Prettier
     *
     * https://github.com/prettier/eslint-config-prettier
     */
    "eslint-config-prettier",

    /**
     * Recommended config for eslint-plugin-eslint-plugin
     */
    "plugin:eslint-plugin/recommended",
  ],
  rules: {
    "@typescript-eslint/ban-ts-comment": "off",
    "@typescript-eslint/no-use-before-define": "off",
    "@typescript-eslint/naming-convention": [
      "error",
      {
        selector: "variable",
        format: ["camelCase", "PascalCase", "UPPER_CASE"],
        leadingUnderscore: "allow",
      },
    ],
  },
};