.eslintrc

{
    "parser": "babel-eslint",
    "env": {
        "browser": true,
        "node": true,
        "es6": true
    },

    "globals": {
        "React": true
    },

    "parserOptions": {
        "ecmaVersion": 2018,
        "sourceType": "module",
        "ecmaFeatures": {
          "jsx": true,
          "modules": true,
          "experimentalObjectRestSpread": true
        },
        babelOptions: {
          configFile: "./babelrc",
        }
    },

    "plugins": [
        "react",
        "babel"
    ],

    "extends": [
        "eslint:recommended",
        "plugin:react/recommended"
    ],

    "rules": {
        "no-alert": 2,
        "no-array-constructor": 2,
        "no-caller": 2,
        "no-catch-shadow": 2,
        "no-eval": 2,
        "no-extend-native": 2,
        "no-extra-bind": 2,
        "no-implied-eval": 2,
        "no-iterator": 2,
        "no-label-var": 2,
        "no-labels": 2,
        "no-lone-blocks": 2,
        "no-loop-func": 2,
        "no-multi-spaces": 2,
        "no-multi-str": 2,
        "no-native-reassign": 2,
        "no-new": 2,
        "no-new-func": 2,
        "no-new-object": 2,
        "no-new-wrappers": 2,
        "no-octal-escape": 2,
        "no-process-exit": 2,
        "no-proto": 2,
        "no-return-assign": 2,
        "no-script-url": 2,
        "no-sequences": 2,
        "no-shadow": 2,
        "no-shadow-restricted-names": 2,
        "no-spaced-func": 2,
        "no-trailing-spaces": 2,
        "no-undef-init": 2,
        "no-underscore-dangle": 2,
        "no-unneeded-ternary": 2,
        "no-unused-expressions": 2,
        "no-unused-vars": [2, { "args": "none" }],
        "no-use-before-define": 2,
        "no-with": 2,
        "camelcase": 2,
        "comma-spacing": 2,
        "consistent-return": 2,
        "block-spacing": [2, "always"],
        "brace-style": [2, "1tbs", { "allowSingleLine": true }],
        "curly": [2, "multi"],
        "dot-notation": [2, { "allowKeywords": true }],
        "eol-last": 2,
        "no-extra-parens": [2, "functions"],
        "eqeqeq": 2,
        "key-spacing": [2, { "beforeColon": false, "afterColon": true }],
        "lines-between-class-members": [2, "always"],
        "new-parens": 2,
        "indent": [2, 2, { "SwitchCase": 1 }],
        "quotes": [2, "double"],
        "object-curly-spacing": [2, "always"],
        "semi": 2,
        "semi-spacing": [2, {"before": false, "after": true}],
        "space-before-blocks": [2, "always"],
        "keyword-spacing": [2, { "before": true, "after": true }],
        "space-infix-ops": 2,
        "space-unary-ops": [2, { "words": true, "nonwords": false }],
        "space-before-function-paren": ["error", {
            "anonymous": "never",
            "named": "never",
            "asyncArrow": "always"
        }],
        "strict": [2, "function"],
        "yoda": [2, "never"],
        "max-len": [2, {"code": 100, "ignoreComments": true}],
        "max-lines": [2, {"max": 100, "skipBlankLines": true}],
        "max-params": 2,
        "max-lines-per-function": 2,
        "react/jsx-key": 0,
        "react/display-name": 0
    },
    "overrides": [
        {
            "files": ["src/client/views/**"],
            "rules": {
                "max-lines-per-function": [2, { "max": 120 }]
            }
        }
    ]
}