.eslintrc

{
  "parserOptions": {
    "ecmaVersion": 12,
    "sourceType": "module"
  },
  "parser": "babel-eslint",
  "globals": {
    "process": true
  },
  "env": {
    "es6": true,
    "browser": true,
    "jest": true
  },
  "plugins": ["babel", "react"],
  "extends": ["eslint:recommended", "plugin:react/recommended"],
  "rules": {
    "no-console": "warn",
    "indent": [
      "error",
      2,
      {
        "SwitchCase": 1
      }
    ],
    "quotes": ["error", "single"],
    "semi": ["error", "always"],
    "space-in-parens": ["error"],
    "space-infix-ops": "error",
    "object-curly-spacing": ["error", "always"],
    "comma-spacing": "error",
    "space-before-function-paren": ["error", "never"],
    "eol-last": ["error", "always"],
    "keyword-spacing": [
      "error",
      {
        "before": true,
        "after": true,
        "overrides": {
          "do": {
            "after": false
          },
          "for": {
            "after": false
          },
          "if": {
            "after": false
          },
          "switch": {
            "after": false
          },
          "while": {
            "after": false
          },
          "catch": {
            "after": false
          }
        }
      }
    ],
    "arrow-spacing": ["error", { "before": true, "after": true }],
    "array-bracket-spacing": "error",
    "prefer-const": "error",
    "no-var": "error",
    "rest-spread-spacing": "error",
    "prefer-arrow-callback": "error",
    "object-shorthand": ["error", "always"],
    "max-len": "error",
    "jsx-quotes": "error",
    "babel/no-invalid-this": 1,
    "babel/semi": 0
  }
}