.eslintrc.json

// rules drawnt from https://medium.com/@rajduraisamy/config-eslint-prettier-in-typescript-react-app-c92ebf14a896
{
  "root": true,
  "extends": [
    "eslint:recommended",
    "plugin:prettier/recommended",
    "plugin:react/recommended", // Uses the recommended rules from @eslint-plugin-react
    "plugin:@typescript-eslint/eslint-recommended", // Uses the recommended rules from the @typescript-eslint/eslint-plugin
    "plugin:@typescript-eslint/recommended", // Uses the recommended rules from the @typescript-eslint/eslint-plugin
    "prettier/@typescript-eslint" // Uses eslint-config-prettier to disable ESLint rules from @typescript-eslint/eslint-plugin that would conflict with prettier
  ],
  "parser": "@typescript-eslint/parser", // Specifies the ESLint parser
  "env": {
    "browser": true,
    "es6": true,
    "jest": true
  },
  "parserOptions": {
    "ecmaVersion": 2020, // Allows for the parsing of modern ECMAScript features
    "sourceType": "module", // Allows for the use of imports
    "ecmaFeatures": {
      "jsx": true, // Allows for the parsing of JSX
      "arrowFunctions": true
    }
  },
  "plugins": ["react", "@typescript-eslint", "prettier", "spellcheck"],
  "settings": {
    "react": {
      "version": "detect" // Tells eslint-plugin-react to automatically detect the version of React to use
    },
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"],
        "paths": ["./src"]
      }
    }
  },
  "rules": {
    // Existing rules
    "comma-dangle": "off", // https://eslint.org/docs/rules/comma-dangle
    "function-paren-newline": "off", // https://eslint.org/docs/rules/function-paren-newline
    "global-require": "off", // https://eslint.org/docs/rules/global-require
    "import/no-dynamic-require": "off", // https://github.com/benmosher/eslint-plugin-import/blob/master/docs/rules/no-dynamic-require.md
    "no-inner-declarations": "off", // https://eslint.org/docs/rules/no-inner-declarations
    // New rules
    "class-methods-use-this": "off",
    "import/extensions": "off",
    "import/prefer-default-export": "off",
    "@typescript-eslint/explicit-function-return-type": "off",
    "@typescript-eslint/no-var-requires": "off",
    "react/react-in-jsx-scope": "off",
    "spellcheck/spell-checker": [
      1,
      {
        "comments": false,
        "strings": true,
        "identifiers": false,
        "lang": "en_US",
        "skipWords": ["dict", "aff", "hunspellchecker", "hunspell", "utils", "aws"],
        "skipIfMatch": [
          "http://[^s]*",
          "^[-\\w]+/[-\\w\\.]+$" // For MIME Types
        ],
        "skipWordIfMatch": [
          "^foobar.*$" // words that begin with foobar will not be checked
        ],
        "minLength": 3
      }
    ]
  }
}