.eslintrc.json

{
  "env": {
    "browser": true,
    "es2021": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:import/recommended",
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:@typescript-eslint/recommended"
  ],
  "ignorePatterns": [
    "**/*.d.ts",
    "node_modules/",
    "node_modules/",
    "node_modules/*",
    "./node_modules/*",
    "**/node_modules/**"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": "latest",
    "sourceType": "module"
  },
  "plugins": [
    "@typescript-eslint"
  ],
  "rules": {
    // https://eslint.org/docs/latest/rules/prefer-const
    "prefer-const": "error",
    // https://eslint.org/docs/latest/rules/no-const-assign
    "no-const-assign": "error",
    // https://eslint.org/docs/latest/rules/no-var
    "no-var": "error",
    // https://eslint.org/docs/latest/rules/no-new-object
    "no-new-object": "error",
    // https://eslint.org/docs/latest/rules/object-shorthand
    "object-shorthand": "error",
    // https://eslint.org/docs/latest/rules/quote-props
    "quote-props": [
      "error",
      "as-needed"
    ],
    // https://eslint.org/docs/latest/rules/no-prototype-builtins
    "no-prototype-builtins": "error",
    // https://eslint.org/docs/latest/rules/prefer-object-spread
    "prefer-object-spread": "error",
    // https://eslint.org/docs/latest/rules/no-array-constructor
    "no-array-constructor": "error",
    // https://eslint.org/docs/latest/rules/array-callback-return
    "array-callback-return": "error",
    // https://eslint.org/docs/latest/rules/prefer-destructuring
    "prefer-destructuring": "error",
    // https://eslint.org/docs/latest/rules/quotes
    "quotes": [
      "error",
      "single"
    ],
    // https://eslint.org/docs/latest/rules/prefer-template
    "prefer-template": "error",
    // https://eslint.org/docs/latest/rules/template-curly-spacing
    "template-curly-spacing": "error",
    // https://eslint.org/docs/latest/rules/no-eval
    "no-eval": "error",
    // https://eslint.org/docs/latest/rules/no-useless-escape
    "no-useless-escape": "error",
    // https://eslint.org/docs/latest/rules/func-style
    "func-style": "warn",
    // https://eslint.org/docs/latest/rules/wrap-iife
    "wrap-iife": "error",
    // https://eslint.org/docs/latest/rules/no-loop-func
    "no-loop-func": "error",
    // https://eslint.org/docs/latest/rules/prefer-rest-params
    "prefer-rest-params": "error",
    // https://eslint.org/docs/latest/rules/default-param-last
    "default-param-last": "error",
    // https://eslint.org/docs/latest/rules/no-new-func
    "no-new-func": "error",
    // https://eslint.org/docs/latest/rules/space-before-function-paren
    "space-before-function-paren": [
      "warn",
      {
        "anonymous": "never",
        "named": "never",
        "asyncArrow": "always"
      }
    ],
    // https://eslint.org/docs/latest/rules/space-before-blocks
    "space-before-blocks": "error",
    // https://eslint.org/docs/latest/rules/no-param-reassign
    "no-param-reassign": "error",
    // https://eslint.org/docs/latest/rules/prefer-spread
    "prefer-spread": "error",
    // https://eslint.org/docs/latest/rules/function-paren-newline
    "function-paren-newline": "error",
    // https://eslint.org/docs/latest/rules/prefer-arrow-callback
    "prefer-arrow-callback": "error",
    // https://eslint.org/docs/latest/rules/arrow-spacing
    "arrow-spacing": "error",
    // https://eslint.org/docs/latest/rules/arrow-parens
    "arrow-parens": "error",
    // https://eslint.org/docs/latest/rules/arrow-body-style
    "arrow-body-style": "error",
    // https://eslint.org/docs/latest/rules/no-confusing-arrow
    "no-confusing-arrow": "error",
    // https://eslint.org/docs/latest/rules/implicit-arrow-linebreak
    "implicit-arrow-linebreak": "error",
    // https://eslint.org/docs/latest/rules/no-useless-constructor
    "no-useless-constructor": "error",
    // https://eslint.org/docs/latest/rules/no-dupe-class-members
    "no-dupe-class-members": "error",
    // https://eslint.org/docs/latest/rules/class-methods-use-this
    "class-methods-use-this": "off",
    // https://eslint.org/docs/latest/rules/no-duplicate-imports
    "no-duplicate-imports": "error",
    // https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/no-mutable-exports.md
    "import/no-mutable-exports": "error",
    // https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/prefer-default-export.md
    "import/prefer-default-export": "error",
    // https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/first.md
    "import/first": "error",
    // https://eslint.org/docs/latest/rules/jsx-quotes
    "jsx-quotes": [
      "error",
      "prefer-single"
    ],
    // https://eslint.org/docs/latest/rules/object-curly-newline
    "object-curly-newline": "error",
    // https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/no-webpack-loader-syntax.md
    "import/no-webpack-loader-syntax": "error",
    // https://github.com/benmosher/eslint-plugin-import/blob/master/docs/rules/extensions.md
    "import/extensions": [
      "error",
      "never",
      {
        "css": "always",
        "interface": "always"
      }
    ],
    // https://eslint.org/docs/latest/rules/no-iterator
    "no-iterator": "warn",
    // https://eslint.org/docs/latest/rules/no-restricted-syntax
    "no-restricted-syntax": "warn",
    // https://eslint.org/docs/latest/rules/generator-star-spacing
    "generator-star-spacing": "warn",
    // https://eslint.org/docs/latest/rules/dot-notation
    "dot-notation": "error",
    // https://eslint.org/docs/latest/rules/no-restricted-properties
    "no-restricted-properties": "error",
    // https://eslint.org/docs/latest/rules/no-undef
    "no-undef": "error",
    // https://eslint.org/docs/latest/rules/one-var
    "one-var": [
      "error",
      "never"
    ],
    // https://eslint.org/docs/latest/rules/no-multi-assign
    "no-multi-assign": "error",
    // https://eslint.org/docs/latest/rules/operator-linebreak
    "operator-linebreak": [
      "error",
      "before"
    ],
    // https://eslint.org/docs/latest/rules/no-unused-vars
    "no-unused-vars": "warn",
    // https://typescript-eslint.io/rules/no-unused-vars/
    "@typescript-eslint/no-unused-vars": [
      "warn",
      {
        "ignoreRestSiblings": true,
        "argsIgnorePattern": "^_",
        "caughtErrorsIgnorePattern": "^_"
      }
    ],
    // https://eslint.org/docs/latest/rules/eqeqeq
    "eqeqeq": "error",
    // https://eslint.org/docs/latest/rules/no-case-declarations
    "no-case-declarations": "error",
    // https://eslint.org/docs/latest/rules/no-nested-ternary
    "no-nested-ternary": "error",
    // https://eslint.org/docs/latest/rules/no-unneeded-ternary
    "no-unneeded-ternary": "error",
    // https://eslint.org/docs/latest/rules/no-mixed-operators
    "no-mixed-operators": "error",
    // https://eslint.org/docs/latest/rules/nonblock-statement-body-position
    "nonblock-statement-body-position": "error",
    // https://eslint.org/docs/latest/rules/brace-style
    "brace-style": "error",
    // https://eslint.org/docs/latest/rules/no-else-return
    "no-else-return": "error",
    // https://eslint.org/docs/latest/rules/spaced-comment
    "spaced-comment": "error",
    // https://eslint.org/docs/latest/rules/indent
    "indent": [
      "error",
      2
    ],
    // https://eslint.org/docs/latest/rules/space-infix-ops
    "space-infix-ops": "error",
    // https://eslint.org/docs/latest/rules/eol-last
    "eol-last": "error",
    // https://eslint.org/docs/latest/rules/newline-per-chained-call
    "newline-per-chained-call": "error",
    // https://eslint.org/docs/latest/rules/no-whitespace-before-property
    "no-whitespace-before-property": "error",
    // https://eslint.org/docs/latest/rules/padded-blocks
    "padded-blocks": [
      "error",
      {
        "blocks": "never"
      },
      {
        "allowSingleLineBlocks": true
      }
    ],
    // https://eslint.org/docs/latest/rules/no-multiple-empty-lines
    "no-multiple-empty-lines": "error",
    // https://eslint.org/docs/latest/rules/space-in-parens
    "space-in-parens": "error",
    // https://eslint.org/docs/latest/rules/array-bracket-spacing
    "array-bracket-spacing": "error",
    // https://eslint.org/docs/latest/rules/object-curly-spacing
    "object-curly-spacing": [
      "error",
      "always"
    ],
    // https://eslint.org/docs/latest/rules/max-len
    "max-len": [
      "error",
      {
        "code": 100,
        "tabWidth": 2,
        "ignoreStrings": true,
        "ignoreUrls": true,
        "ignoreComments": true
      }
    ],
    // https://eslint.org/docs/latest/rules/block-spacing
    "block-spacing": "error",
    // https://eslint.org/docs/latest/rules/comma-spacing
    "comma-spacing": "error",
    // https://eslint.org/docs/latest/rules/computed-property-spacing
    "computed-property-spacing": "error",
    // https://eslint.org/docs/latest/rules/func-call-spacing
    "func-call-spacing": "error",
    // https://eslint.org/docs/latest/rules/key-spacing
    "key-spacing": "error",
    // https://eslint.org/docs/latest/rules/no-trailing-spaces
    "no-trailing-spaces": "error",
    // https://eslint.org/docs/latest/rules/comma-style
    "comma-style": [
      "error",
      "last"
    ],
    // https://eslint.org/docs/latest/rules/comma-dangle
    "comma-dangle": [
      "error",
      "always-multiline"
    ],
    // https://eslint.org/docs/latest/rules/semi
    "semi": "error",
    // https://eslint.org/docs/latest/rules/no-new-wrappers
    "no-new-wrappers": "error",
    // https://eslint.org/docs/latest/rules/radix
    "radix": "error",
    // https://eslint.org/docs/latest/rules/id-length
    "id-length": "warn",
    // https://eslint.org/docs/latest/rules/camelcase
    "camelcase": "off",
    // https://eslint.org/docs/latest/rules/new-cap
    "new-cap": "error",
    // https://eslint.org/docs/latest/rules/no-restricted-globals
    "no-restricted-globals": "error"
  },
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [
          ".js",
          ".jsx",
          ".ts",
          ".tsx",
          ".css"
        ]
      }
    }
  }
}