.eslintrc.json

{
    "extends": "eslint:recommended",
    "env": {
        "es6": true,
        "browser": true,
        "commonjs": true
    },
    "parserOptions": {
      "sourceType": "module",
      "ecmaFeatures": {
          "experimentalObjectRestSpread": true,
          "jsx": true
      }
    },
    "plugins": [
      "react"
    ],
    "rules": {
        "eqeqeq": 2,
        "no-const-assign": 2,
        "prefer-const": 2,
        "semi": [2, "always"],

        "array-bracket-spacing": [1, "never"],
        "arrow-spacing": 1,
        "brace-style": [1, "1tbs", {"allowSingleLine": true}],
        "comma-style": [1, "last"],
        "indent": [1, 2],
        "keyword-spacing": 1,
        "linebreak-style": [1, "unix"],
        "no-console": 1,
        "no-unused-vars": 1,
        "no-trailing-spaces": 1,
        "object-curly-spacing": [1, "always", {"objectsInObjects": false, "arraysInObjects": false}],
        "padded-blocks": [1, "never"],
        "space-before-blocks": 1,
        "space-in-parens": 1,
        "space-infix-ops": 1,

        "react/jsx-space-before-closing": 1,
        "react/jsx-uses-react": 2,
        "react/jsx-uses-vars": 2,
        "react/jsx-no-undef": 2,
        "react/no-did-mount-set-state": 2,
        "react/no-did-update-set-state": 2,
        "react/no-direct-mutation-state": 2,
        "react/no-unknown-property": 2,
        "react/sort-comp": [1, {
          "order": ["static-methods", "lifecycle", "render", "everything-else"]
        }]
    }
}