.eslintrc

{
  "env": {
    "browser": true,
    "es2021": true,
    "jest": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:jest/recommended",
    "plugin:jest/style",
    "plugin:jest-formatting/recommended",
    "prettier",
    "next",
    "next/core-web-vitals"
  ],
  "parser": "@typescript-eslint/parser",
  "plugins": [
    "@typescript-eslint",
    "jest",
    "jest-formatting",
    "@typescript-eslint"
  ],
  "rules": {
    // EsLint Rules

    // Require a whitespace at the beginning of a comment
    "spaced-comment": ["error", "always"],
    "semi": ["error", "always"],
    "import/extensions": 0,
    "import/no-named-as-default-member": 0,

    // Maximum line length for comments
    // Trailing comments allowed beyond maximum line length
    "max-len": [
      "error",
      {
        "code": 200,
        "comments": 100,
        "ignoreTrailingComments": true
      }
    ],

    // Require braces around blocks
    "curly": ["error", "all"],

    // Require parentheses around arrow function arguments
    "arrow-parens": ["error", "always"],

    // Require blank line before certain statements
    "padding-line-between-statements": [
      "error",
      {
        "blankLine": "always",
        "prev": "*",
        "next": "function"
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": "class"
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": "export"
      },
      {
        // Allow consecutive export statements
        "blankLine": "any",
        "prev": "export",
        "next": "export"
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": "return"
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": "break"
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": "continue"
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": "throw"
      },
      {
        "blankLine": "always",
        "prev": ["const", "let", "var"],
        "next": "*"
      },
      // Allow consecutive variable declarations
      {
        "blankLine": "any",
        "prev": ["const", "let", "var"],
        "next": ["const", "let", "var"]
      }
    ],

    // eslint-plugin-react rules

    // Suppress errors for missing 'import React' in files
    // No need of 'import React' for Reactv17 onwards
    "react/react-in-jsx-scope": "off",

    // Require props to be sorted
    "react/jsx-sort-props": [
      "error",
      {
        "callbacksLast": true,
        "shorthandFirst": true
      }
    ],

    // Omit boolean prop value when set to true
    "react/jsx-boolean-value": ["error", "never"],

    // Require self closing tags in JSX/HTML
    "react/self-closing-comp": [
      "error",
      {
        "component": true,
        "html": true
      }
    ],

    // Require PascalCase for user-defined JSX components
    "react/jsx-pascal-case": ["error"],

    // Disallow unnecessary curly braces in JSX
    "react/jsx-curly-brace-presence": ["error", "never"],

    // eslint-plugin-react-hooks rules

    // Enforce rules of hooks
    "react-hooks/rules-of-hooks": "error",

    // Console logs cannot be committed.
    "no-console": ["error"],

    // eslint-plugin-jest rules

    // Prefer "it" over "test"
    "jest/consistent-test-it": [
      "error",
      { "fn": "it", "withinDescribe": "it" }
    ],

    // Disallow skipped/disabled tests
    "jest/no-disabled-tests": "error",

    // eslint-plugin-jest-formatting rules

    // Require blank line before certain statements (ESLint rules don't work with Jest)
    "jest-formatting/padding-around-all": "error",

    // Require Explicit types for function return values
    "@typescript-eslint/explicit-function-return-type": [
      "error",
      { "allowExpressions": true }
    ],

    // disabling this rule and added "@typescript-eslint/explicit-function-return-type"
    // Below rule checks for missing return type and arguments only in exported functions and classes
    // Check for details : "https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/docs/rules/explicit-module-boundary-types.md"
    "@typescript-eslint/explicit-module-boundary-types": "off"
  }
}