.eslintrc.json

{
  "$schema": "https://json.schemastore.org/eslintrc",

  "root": true,

  "env": {
    "browser": true,
    "es2020": true,
    "node": true,
    "jest": true
  },

  "extends": [
    "eslint:recommended",
    "plugin:react/recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:prettier/recommended",
    "prettier"
  ],

  "globals": { "NodeJS": true },

  "parser": "@typescript-eslint/parser",

  "parserOptions": {
    "ecmaFeatures": { "jsx": true },
    "ecmaVersion": 2020,
    "sourceType": "module"
  },

  "plugins": ["react", "@typescript-eslint", "import", "tsdoc", "prettier"],

  "rules": {
    "@typescript-eslint/no-shadow": "error",
    "arrow-body-style": ["error", "as-needed"],
    "import/no-duplicates": "error",
    "indent-legacy": "off",
    "indent": "off",
    "jsx-quotes": ["error", "prefer-single"],
    "linebreak-style": ["error", "unix"],
    "max-len": ["error", { "code": 100, "ignoreUrls": true, "ignoreComments": true }],
    "no-undef": "error",
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": "error",
    "no-var": "error",
    "object-shorthand": "error",
    "prefer-const": ["error", { "destructuring": "any" }],
    "quotes": "off",
    "semi": ["error", "never"],
    "no-param-reassign": "error",
    "tsdoc/syntax": "warn"
  },

  "overrides": [
    {
      "files": ["scripts/**/*.js", "jest.*.js", "jest/*.js"],
      "rules": {
        "@typescript-eslint/no-var-requires": "off"
      }
    }
  ]
}