.eslintrc

{
  "extends": "react-app",
  "plugins": ["simple-import-sort"],
  "rules": {
    "quotes": [
      "error",
      "double",
      { "avoidEscape": true, "allowTemplateLiterals": true }
    ],
    "no-unused-vars": "warn",
    "no-var": "error",
    "no-console": "warn",
    "no-debugger": "warn",
    "no-plusplus": "off",
    "no-shadow": "off",
    "vars-on-top": "off",
    "no-underscore-dangle": "off", // var _foo;
    "func-names": "off", // setTimeout(function () {}, 0);
    "prefer-template": "off",
    "no-nested-ternary": "off",
    "max-classes-per-file": "off",
    "consistent-return": "off",
    "no-restricted-syntax": ["off", "ForOfStatement"], // disallow specified syntax(ex. WithStatement)
    "prefer-arrow-callback": "error", // Require using arrow functions for callbacks
    "require-await": "error",
    // "arrow-parens": ["error", "as-needed"], // a => {}
    "default-case": "off",
    "no-param-reassign": ["error", { "props": false }],
    "no-unused-expressions": ["error", {
      "allowTernary": true,      // a || b
      "allowShortCircuit": true, // a ? b : 0
      "allowTaggedTemplates": true
    }],
    "indent": ["error", 2, { "SwitchCase": 1 }],
    "semi": ["error", "always"],
    "comma-dangle": ["error", {
      "arrays": "never",
      "functions": "never",
      "objects": "always-multiline",
      "imports": "always-multiline",
      "exports": "always-multiline"
    }],
    "eol-last": ["error", "always"],
    "key-spacing": ["error", {
      "beforeColon": false,
      "afterColon": true
    }],
    "object-curly-spacing": [2, "always"],
    "simple-import-sort/imports": "error",
    "simple-import-sort/exports": "error",
    "camelcase": ["error", { "properties": "always" }],
    "quote-props": 0,
    "keyword-spacing": "error",
    "no-multiple-empty-lines": "warn",
    "space-before-function-paren": [
      "error",
      {
        "anonymous": "always",
        "named": "never",
        "asyncArrow": "always"
      }
    ]
  }
}