.eslintrc.json

{
  "extends": [
    "next",
    "plugin:react/all",
    "eslint:recommended",
    "eslint-config-next",
    "next/core-web-vitals",
    "plugin:import/recommended",
    "plugin:jsx-a11y/strict",
    "plugin:promise/recommended",
    "plugin:jest-dom/recommended",
    "plugin:sonarjs/recommended",
    // Prettier should be last to override other configs that might conflict with it
    "prettier"
  ],
  "rules": {
    "react/no-danger": "off",
    "react/prop-types": "off",
    "jsx-a11y/alt-text": "off",
    "react-in-jsx-scope": "off",
    "no-case-declarations": "off",
    "react/no-string-refs": "off",
    "react/jsx-sort-props": "off",
    "no-prototype-builtins": "off",
    "jsx-a11y/no-autofocus": "off",
    "react/jsx-no-literals": "off",
    "react/sort-prop-types": "off",
    "react/button-has-type": "off",
    "react/forbid-prop-types": "off",
    "react/jsx-no-leaked-render": "off",
    "react/require-optimization": "off",
    "react/require-default-props": "off",
    "react/jsx-sort-default-props": "off",
    "react/forbid-component-props": "off",
    "react/function-component-definition": "off",
    "react/default-props-match-prop-types": "off",
    "yoda": "error",
    "curly": "error",
    "dot-notation": "error",
    "no-fallthrough": "error",
    "spaced-comment": "error",
    "prefer-template": "error",
    "no-useless-return": "error",
    "no-implicit-coercion": "error",
    "prefer-object-spread": "error",
    "react/jsx-max-depth": ["error", { "max": 5 }],
    "react/jsx-filename-extension": ["error", { "extensions": [".tsx"] }],
    "lines-between-class-members": [
      "error",
      "always",
      { "exceptAfterSingleLine": true }
    ],
    "padding-line-between-statements": [
      "error",
      { "blankLine": "always", "prev": "*", "next": "return" },
      { "blankLine": "always", "prev": ["const", "let", "var"], "next": "*" },
      {
        "blankLine": "any",
        "prev": ["const", "let", "var"],
        "next": ["const", "let", "var"]
      }
    ]
  },
  "overrides": [
    {
      "files": ["*.ts", "*.tsx"],
      "extends": [
        "plugin:import/typescript",
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking",
        "plugin:@typescript-eslint/strict"
      ],
      "rules": {
        "@typescript-eslint/member-ordering": "error",
        "@typescript-eslint/explicit-function-return-type": "error",
        "@typescript-eslint/explicit-member-accessibility": "error"
      },
      "parserOptions": {
        "tsconfigRootDir": ".",
        "project": ["./tsconfig.json"]
      }
    }
  ],
  "root": true,
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": "latest",
    "sourceType": "module"
  },
  "env": {
    "browser": true,
    "es2021": true,
    "es6": true,
    "node": true,
    "jest": true
  },
  "settings": {
    "react": { "version": "detect" },
    "import/parsers": { "@typescript-eslint/parser": [".ts", ".tsx"] },
    "import/resolver": {
      "typescript": { "alwaysTryTypes": true, "project": "__dirname" },
      "node": true
    }
  }
}