.eslintrc.json

{
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 6,
        "ecmaFeatures": {
            "jsx": true
        }
    },

    "env": {
        "browser": true,
        "node": true,
        "es6": true
    },

    "rules": {
        "no-cond-assign": ["error", "except-parens"],
        "no-console": "warn",
        "no-constant-condition": "error",
        "no-control-regex": "error",
        "no-debugger": "warn",
        "no-dupe-args": "error",
        "no-dupe-keys": "error",
        "no-duplicate-case": "error",
        "no-empty": "error",
        "no-empty-character-class": "error",
        "no-ex-assign": "error",
        "no-extra-boolean-cast": "error",
        "no-extra-parens": ["error", "functions"],
        "no-extra-semi": "error",
        "no-func-assign": "error",
        "no-inner-declarations": "error",
        "no-invalid-regexp": "error",
        "no-irregular-whitespace": "error",
        "no-negated-in-lhs": "error",
        "no-obj-calls": "error",
        "no-prototype-builtins": "error",
        "no-regex-spaces": "error",
        "no-sparse-arrays": "error",
        "no-unexpected-multiline": "error",
        "no-unreachable": "error",
        "no-unsafe-finally": "error",
        "use-isnan": "error",
        "valid-jsdoc": "error",
        "valid-typeof": "error",




        "accessor-pairs": "error",
        "array-callback-return": "error",
        "block-scoped-var": "error",
        "complexity": ["warn", 10],
        "consistent-return": "error",
        "curly": ["error"],
        "default-case": "error",
        "dot-location": ["error", "property"],
        "dot-notation": "off",
        "eqeqeq": "error",
        "guard-for-in": "error",
        "no-alert": "error",
        "no-caller": "error",
        "no-case-declarations": "error",
        "no-div-regex": "error",
        "no-else-return": "error",
        "no-empty-function": "error",
        "no-empty-pattern": "error",
        "no-eq-null": "error",
        "no-eval": "error",
        "no-extend-native": "error",
        "no-extra-bind": "error",
        "no-extra-label": "error",
        "no-fallthrough": "error",
        "no-floating-decimal": "error",
        "no-implicit-coercion": "error",
        "no-implicit-globals": "error",
        "no-implied-eval": "error",
        "no-invalid-this": "error",
        "no-iterator": "error",
        "no-labels": "error",
        "no-lone-blocks": "error",
        "no-loop-func": "error",
        "no-magic-numbers": "off",
        "no-multi-spaces": "off",
        "no-multi-str": "error",
        "no-native-reassign": "error",
        "no-new": "error",
        "no-new-func": "error",
        "no-new-wrappers": "error",
        "no-octal": "error",
        "no-octal-escape": "error",
        "no-param-reassign": "error",
        "no-proto": "error",
        "no-redeclare": "error",
        "no-return-assign": "error",
        "no-script-url": "error",
        "no-self-assign": "error",
        "no-self-compare": "error",
        "no-sequences": "error",
        "no-throw-literal": "error",
        "no-unmodified-loop-condition": "error",
        "no-unneeded-ternary": "error",
        "no-unused-expressions": "error",
        "no-unused-labels": "error",
        "no-useless-call": "error",
        "no-useless-concat": "error",
        "no-useless-escape": "error",
        "no-void": "error",
        "no-warning-comments": "warn",
        "no-with": "error",
        "radix": "error",
        "vars-on-top": "error",
        "wrap-iife": ["error", "inside"],
        "yoda": "error",




        "strict": ["error", "never"],




        "init-declarations": "off",
        "no-catch-shadow": "error",
        "no-delete-var": "error",
        "no-label-var": "error",
        "no-shadow-restricted-names": "error",
        "no-shadow": "error",
        "no-undef": "error",
        "no-undef-init": "error",
        "no-undefined": "off",
        "no-unused-vars": ["error", {
            "vars": "local",
            "args": "after-used"
        }],
        "no-use-before-define": ["error", {
            "functions": false,
            "classes": true
        }],




        "callback-return": "off",
        "global-require": "error",
        "handle-callback-err": "error",
        "no-mixed-requires": "error",
        "no-new-require": "error",
        "no-path-concat": "error",
        "no-process-env": "warn",
        "no-process-exit": "error",
        "no-restricted-modules": "error",
        "no-sync": "warn",




        "array-bracket-spacing": "error",
        "block-spacing": ["error", "never"],
        "brace-style": ["error", "1tbs", {
            "allowSingleLine": false
        }],
        "camelcase": ["error", {
            "properties": "always"
        }],
        "comma-dangle": ["error", "never"],
        "comma-spacing": ["error", {
            "before": false,
            "after": true
        }],
        "comma-style": ["error", "last"],
        "consistent-this": ["error", "self"],
        "eol-last": "off",
        "func-names": "off",
        "func-style": ["error", "declaration", {
            "allowArrowFunctions": true
        }],
        "id_blacklist": "off",
        "id-length": "off",
        "id-match": "off",
        "indent": ["error", "tab"],
        "jsx-quotes": "error",
        "key-spacing": ["error", {
            "beforeColon": false,
            "afterColon": true,
            "align": "colon"
        }],
        "keyword-spacing": "error",
        "linebreak-style": ["error", "unix"],
        "lines-around-comment": ["error", {
            "beforeBlockComment": true,
            "allowBlockStart": true
        }],
        "max-depth": ["warn", 3],
        "max-len": "off",
        "max-lines": "off",
        "max-params": ["warn", 4],
        "max-statements": ["warn", {
            "max": 20
        }],
        "max-statements-per-line": ["error", {
            "max": 1
        }],
        "max-nested-callbacks": ["warn", 3],
        "new-cap": ["error", {
            "newIsCap": true,
            "capIsNew": true
        }],
        "new-parens": "error",
        "newline-after-var": "off",
        "newline-before-return": "error",
        "newline-per-chained-call": ["error", {
            "ignoreChainWithDepth": 3
        }],
        "no-array-constructor": "error",
        "no-bitwise": "off",
        "no-continue": "off",
        "no-inline-comments": "off",
        "no-lonely-if": "off",
        "no-mixed-operators": "off",
        "no-mixed-spaces-and-tabs": "error",
        "no-multiple-empty-lines": ["error", {
            "max": 1,
            "maxEOF": 1,
            "maxBOF": 0
        }],
        "no-negated-condition": "error",
        "no-nested-ternary": "error",
        "no-new-object": "error",
        "no-plusplus": "off",
        "no-restricted-syntax": "off",
        "no-spaced-func": "error",
        "no-ternary": "off",
        "no-trailing-spaces": "error",
        "no-whitespace-before-property": "error",
        "no-underscore-dangle": "off",
        "object-curly-newline": ["error", {
            "ObjectExpression": {
                "minProperties": 1
            },
            "ObjectPattern": {
                "multiline": true
            }
        }],
        "object-curly-spacing": ["error", "never"],
        "object-property-newline": "error",
        "one-var": ["error", "never"],
        "one-var-declaration-per-line": ["error", "always"],
        "operator-assignment": ["error", "always"],
        "operator-linebreak": ["error", "after"],
        "padded-blocks": ["error", {
            "blocks": "never",
            "switches": "never",
            "classes": "always"
        }],
        "quote-props": ["error", "consistent"],
        "quotes": [
            "error", "single", "avoid-escape"
        ],
        "require-jsdoc": "off",
        "semi": ["error", "always"],
        "semi-spacing": ["error", {
            "before": false,
            "after": true
        }],
        "sort-vars": ["error", {
            "ignoreCase": true
        }],
        "space-before-blocks": "error",
        "space-before-function-paren": ["error", "never"],
        "space-in-parens": ["error", "never"],
        "space-infix-ops": "error",
        "space-unary-ops": ["error", {
            "words": true,
            "nonwords": false
        }],
        "spaced-comment": ["error", "always", {
            "exceptions": ["-", "+"],
            "markers": ["=", "!"]
        }],
        "unicode-bom": "error",
        "wrap-regex": "error",



        /**
         * ES6
         */
        "arrow-body-style": ["error", "as-needed"],
        "arrow-parens": ["error", "as-needed"],
        "arrow-spacing": ["error", {
            "before": true,
            "after": true
        }],
        "constructor-super": "error",
        "generator-star-spacing": ["error", {
            "before": true,
            "after": false
        }],
        "no-class-assign": "error",
        "no-confusing-arrow": ["error", {
            "allowParens": true
        }],
        "no-const-assign": "error",
        "no-dupe-class-members": "error",
        "no-duplicate-imports": "error",
        "no-new-symbol": "error",
        "no-restricted-imports": "off",
        "no-this-before-super": "error",
        "no-useless-computed-key": "error",
        "no-useless-constructor": "error",
        "no-useless-rename": "error",
        "no-var": "error",
        "object-shorthand": ["error", "always"],
        "prefer-arrow-callback": "error",
        "prefer-const": "error",
        "prefer-reflect": "off",
        "prefer-rest-params": "error",
        "prefer-spread": "error",
        "prefer-template": "error",
        "require-yield": "error",
        "rest-spread-spacing": ["error", "never"],
        "template-curly-spacing": ["error", "never"],
        "yield-star-spacing": ["error", {
            "before": true,
            "after": false
        }]

    }
}