.eslintrc

{
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true,
      "experimentalObjectRestSpread": true
    }
  },
  "env": {
    "browser": true,
    "node": true,
    "es6": true,
    "jest": true,
    "jasmine": true
  },
  "parser": "babel-eslint",
  "plugins": ["react"],
  "extends": ["eslint:recommended", "plugin:react/recommended"],
  "rules": {
    "strict": 0,
    "indent": [2, 2, { "SwitchCase": 1 }],
    "quotes": [2, "single"],
    "linebreak-style": [2, "unix"],
    "semi": [2, "always"],
    "camelcase": [1, { "properties": "never" }],
    "prefer-template": "error",
    "no-useless-concat": "error",
    "prefer-spread": "error",
    "react/jsx-tag-spacing": [2, { "beforeSelfClosing": "always" }],
    "keyword-spacing": [
      2,
      {
        "before": true,
        "after": true,
        "overrides": {
          "return": { "after": true },
          "throw": { "after": true },
          "case": { "after": true }
        }
      }
    ],
    "no-unused-vars": [
      2,
      {
        "vars": "all",
        "args": "after-used",
        "argsIgnorePattern": "state",
        "varsIgnorePattern": "React"
      }
    ],
    "space-before-blocks": 2,
    "space-infix-ops": 2,
    "space-before-function-paren": [
      2,
      { "anonymous": "always", "named": "never" }
    ],
    "array-bracket-spacing": [2, "never"],
    "object-curly-spacing": [2, "always"],
    "space-in-parens": [2, "never"],
    "block-spacing": [2, "always"],
    "brace-style": [2, "1tbs", { "allowSingleLine": true }],
    "comma-spacing": [2, { "before": false, "after": true }],
    "comma-style": [2, "last"],
    "comma-dangle": [2, "always-multiline"],
    "prefer-arrow-callback": [2, { "allowNamedFunctions": true }],
    "prefer-const": 1,
    "react/no-multi-comp": [2, { "ignoreStateless": true }],
    "react/no-did-mount-set-state": 2,
    "react/no-unescaped-entities": 0,
    "no-extra-boolean-cast": 0,
    "no-console": ["error", { "allow": ["warn", "error"] }],
    "react/jsx-curly-spacing": [2, { "when": "always" }],
    "react/no-unused-prop-types": 2
  }
}