.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": [
    "plugin:react/recommended"
  ],
  "rules": {
    "indent": [
      "error",
      2
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      "error",
      "always"
    ],
    "curly": [
      "error",
      "all"
    ],
    "one-var-declaration-per-line": [
      "error",
      "always"
    ],
    "new-cap": "error",
    "no-var": 1,
    "no-unused-vars": [
      "error",
      {
        "ignoreRestSiblings": true
      }
    ],
    "react/prop-types": "off"
  },
  "parser": "@babel/eslint-parser",
  "parserOptions": {
    "ecmaVersion": 2018,
    "ecmaFeatures": {
      "jsx": true,
      "modules": true
    },
    "sourceType": "module"
  },
  "globals": {
    "page": true,
    "browser": true
  }
}