.eslintrc

{
    "env": {
      "es6": true
    },
    "parserOptions": {
      "sourceType": "module"
    },
    "extends": "react-app",
    "rules": {
      "jsx-a11y/anchor-is-valid": 0,
      "semi": ["error", "always"],
      "curly": "error",
      "no-unused-vars": [
        "warn",
        {
          "vars": "all",
          "args": "after-used",
          "argsIgnorePattern": "^_",
          "varsIgnorePattern": "^_"
        }
      ],
      "prefer-const": "error",
      "brace-style": "error",
      "no-debugger": "error",
      "no-useless-return": "error",
      "block-scoped-var": "error",
      "default-case": "error",
      "no-else-return": "error",
      "no-eq-null": "error",
      "no-floating-decimal": "error",
      "no-loop-func": "error",
      "prefer-template": "error",
      "spaced-comment": "error",
      "space-before-blocks": ["error", "always"],
      "keyword-spacing": [
        "error",
        {
          "after": true
        }
      ],
      "max-len": [
        "error",
        {
          "code": 220,
          "ignoreComments": true,
          "ignoreStrings": true,
          "ignoreTemplateLiterals": true
        }
      ],
      "space-infix-ops": "error",
      "template-curly-spacing": "off",
      "arrow-spacing": [
        "error",
        {
          "before": true,
          "after": true
        }
      ],
      "semi-spacing": [
        "error",
        {
          "before": false,
          "after": true
        }
      ],
      "object-curly-spacing": ["error", "always"],
      "key-spacing": [
        "error",
        {
          "beforeColon": false,
          "afterColon": true,
          "mode": "strict",
          "align": "colon"
        }
      ],
      "comma-spacing": [
        "error",
        {
          "before": false,
          "after": true
        }
      ],
      "prefer-arrow-callback": [
        "error",
        {
          "allowNamedFunctions": true,
          "allowUnboundThis": true
        }
      ],
      "quotes": ["error", "single"],
      "no-var": "error",
      // "no-console": [
      //   "warn",
      //   {
      //     "allow": ["error", "warn"]
      //   }
      // ],
      "no-alert": "error",
      "indent": [
        "error",
        2,
        {
          "SwitchCase": 1,
          "ignoredNodes": ["TemplateLiteral"]
        }
      ],
      "space-in-parens": ["error", "never"],
      "no-extra-semi": "error",
      "no-multi-spaces": ["error"],
      "no-unmodified-loop-condition": "error",
      "no-useless-concat": "error",
      "prefer-spread": "error",
      "complexity": ["error", 42]
    }
  }