.eslintrc.json

{
  "extends": [
    "next/core-web-vitals",
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:react/recommended",
    "next",
    "prettier"
  ],
  "rules": {
    // eslint
    "max-lines": ["warn", 300],
    "no-case-declarations": "off",
    "no-console": "error",
    "no-debugger": "error",
    "no-var": "error",
    "no-unused-vars": "warn",
    "block-scoped-var": "error",
    "no-param-reassign": "error",
    "space-before-function-paren": ["off", "never"],
    "key-spacing": [
      "warn",
      {
        "mode": "minimum",
        "beforeColon": false,
        "afterColon": true
      }
    ],
    "arrow-spacing": ["warn"],
    "spaced-comment": ["warn", "always", { "markers": ["/"] }],
    "space-in-parens": ["warn", "never"],
    "object-curly-spacing": ["warn", "always"],
    "no-trailing-spaces": "warn",
    "object-shorthand": ["warn", "methods"],
    "prefer-template": "warn",
    "no-useless-concat": "warn",
    "prefer-const": "error",
    "yoda": ["warn", "never", { "exceptRange": true }],
    "quotes": ["warn", "single", { "avoidEscape": true }],
    "max-len": [
      "warn",
      150,
      {
        "ignoreComments": true,
        "ignoreUrls": true,
        "ignorePattern": "d=\"([\\s\\S]*?)\"|className=\"([\\s\\S]*?)\""
      }
    ],
    "no-constant-condition": [
      "warn",
      {
        "checkLoops": false
      }
    ],
    "brace-style": ["warn"],
    "eqeqeq": ["warn", "always"],

    // react
    "react/react-in-jsx-scope": "off",
    "react/prop-types": "off",
    "react/jsx-no-bind": "off",
    "react/jsx-boolean-value": "warn",
    "react/jsx-closing-bracket-location": "warn",
    "react/jsx-tag-spacing": "warn",
    "jsx-quotes": ["warn", "prefer-double"],
    "react/jsx-wrap-multilines": "warn",
    "react/jsx-handler-names": [
      "off",
      {
        "eventHandlerPropPrefix": ""
      }
    ],
    "react/jsx-key": "warn",
    "react/jsx-no-comment-textnodes": "warn",
    "react/jsx-pascal-case": ["warn", { "allowAllCaps": true }],
    "react/no-did-mount-set-state": "warn",
    "react/no-did-update-set-state": "warn",
    "react/sort-comp": "warn",
    "react/prefer-es6-class": "warn",
    "react/style-prop-object": "warn",
    "react/no-unescaped-entities": "warn",
    // nextjs
    "@next/next/no-img-element": "off",
    // @typescript-eslint
    "@typescript-eslint/array-type": ["warn"],
    "@typescript-eslint/no-explicit-any": ["off"],
    "@typescript-eslint/no-unused-vars": ["warn", { "vars": "all", "args": "none" }],
    "@typescript-eslint/no-inferrable-types": ["off"],
    "@typescript-eslint/no-empty-function": ["off"],
    "semi": ["error", "always"],
    "default-case": "error",
    "no-multi-spaces": "error"
  }
}