.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": [
    "react-app"
  ],
  "rules": {
    "template-curly-spacing": "off",
    "indent": [
      "warn",
      2,
      {
        "ignoredNodes": ["TemplateLiteral"],
        "SwitchCase": 1 }
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "quotes": [
      "error",
      "single"
    ],
    "arrow-body-style": [
      2,
      "as-needed"
    ],
    "lines-between-class-members": ["error", "always"] ,
    "comma-dangle": [ "error", {
      "arrays": "never",
      "objects": "never",
      "imports": "never",
      "exports": "never",
      "functions": "ignore"
    }],
    "no-confusing-arrow": "error",
    "no-console": "warn",
    "no-use-before-define": 1,
    "prefer-template": 2,
    "no-restricted-imports": [
      "error", { "patterns": [ "../*" ]}
    ],
    "no-multiple-empty-lines": ["error", { "max": 1, "maxEOF": 0}],
    "max-len": [2, {"code": 120, "tabWidth": 4, "ignoreUrls": true, "comments": 120, "ignorePattern": "import"}],
    "arrow-spacing": "error",
    "func-call-spacing": ["error", "never"],
    "space-infix-ops": ["error", { "int32Hint": false }],
    "no-nested-ternary": "error"
  }
}