eslintrc.json

{
    "parserOptions": {
        "sourceType": "module",
        "ecmaFeatures": 2018,
        "ecmaVersion": 8
    },
    "env": {
        "browser": true,
        "mocha": true,
        "jest": true,
        "node": true,
        "es6": true,
        "amd": true
    },
    "rules": {
        "array-callback-return": 0,
        "arrow-parens": 0,
        "capitalized-comments": 0,
        "one-var-declaration-per-line": 2,
        "no-cond-assign": 2,
        "no-console": 0,
        "no-constant-condition": 2,
        "no-control-regex": 2,
        "no-debugger": 1,
        "no-dupe-keys": 2,
        "no-duplicate-case": 2,
        "no-empty": 1,
        "no-empty-character-class": 2,
        "no-ex-assign": 2,
        "no-extra-boolean-cast": 2,
        "no-extra-parens": 2,
        "no-extra-semi": 2,
        "no-func-assign": 2,
        "no-inner-declarations": 2,
        "no-invalid-regexp": 2,
        "no-irregular-whitespace": 2,
        "no-mixed-operators": 0,
        "no-negated-condition": 0,
        "no-negated-in-lhs": 2,
        "no-obj-calls": 2,
        "no-regex-spaces": 2,
        "no-sparse-arrays": 2,
        "no-unreachable": 2,
        "no-var": 0,
        "use-isnan": 2,
        "require-jsdoc": [0, {
            "require": {
                "FunctionDeclaration": true,
                "MethodDefinition": true,
                "ClassDeclaration": false
            }
        }],
        "unicorn/filename-case": 0,
        "valid-jsdoc": [1, {
            "requireReturn": false
        }],
        "valid-typeof": 2,

        "block-scoped-var": 2,
        "complexity": 0,
        "consistent-return": 1,
        "curly": 2,
        "default-case": 0,
        "dot-notation": 2,
        "eqeqeq": 2,
        "import/no-extraneous-dependencies": 0,
        "import/no-unresolved": 0,
        "import/no-unassigned-import": 0,
        "import/prefer-default-export": 0,
        "no-alert": 0,
        "no-caller": 2,
        "no-div-regex": 2,
        "no-else-return": 2,
        "no-eq-null": 2,
        "no-eval": 2,
        "no-extend-native": 2,
        "no-extra-bind": 2,
        "no-fallthrough": 2,
        "no-floating-decimal": 2,
        "no-implied-eval": 2,
        "no-iterator": 2,
        "no-labels": 2,
        "no-lone-blocks": 2,
        "no-loop-func": 1,
        "no-multi-spaces": 2,
        "no-multi-str": 2,
        "no-native-reassign": 2,
        "no-new": 0,
        "no-new-func": 2,
        "no-new-wrappers": 2,
        "no-octal": 2,
        "no-octal-escape": 2,
        "no-process-env": 0,
        "no-proto": 2,
        "no-redeclare": 2,
        "no-return-assign": 2,
        "no-script-url": 2,
        "no-self-compare": 2,
        "no-sequences": 2,
        "no-unused-expressions": 1,
        "no-void": 1,
        "no-warning-comments": [1, { "terms": ["fixme"], "location": "start" }],
        "no-with": 2,
        "radix": 2,
        "wrap-iife": [2, "any"],
        "yoda": 0,

        "strict": [2, "function"],
        "prefer-arrow-callback": 0,
        "max-statements-per-line": 0,
        "no-catch-shadow": 2,
        "no-delete-var": 2,
        "no-label-var": 2,
        "no-shadow": 0,
        "no-shadow-restricted-names": 2,
        "no-undef": 1,
        "no-undef-init": 2,
        "no-undefined": 1,
        "no-unused-vars": 2,
        "no-use-before-define": 2,

        "handle-callback-err": 2,
        "no-mixed-requires": 1,
        "no-new-require": 2,
        "no-path-concat": 2,
        "no-process-exit": 2,
        "no-restricted-modules": 0,
        "no-sync": 0,

        "indent": [2, 4, { "SwitchCase": 1 }],
        "brace-style": [2, "1tbs", { "allowSingleLine": true }],
        "camelcase": 1,
        "comma-dangle": [2, "never"],
        "comma-spacing": [2, { "before": false, "after": true }],
        "comma-style": [2, "last"],
        "consistent-this": 0,
        "eol-last": 2,
        "func-names": 0,
        "func-style": 0,
        "key-spacing": [2, { "beforeColon": false, "afterColon": true }],
        "max-nested-callbacks": 0,
        "new-cap": 1,
        "new-parens": 2,
        "no-array-constructor": 2,
        "no-inline-comments": 0,
        "no-lonely-if": 2,
        "no-mixed-spaces-and-tabs": 2,
        "no-multiple-empty-lines": [2, { "max": 2 }],
        "no-nested-ternary": 0,
        "no-new-object": 2,
        "no-spaced-func": 2,
        "no-ternary": 0,
        "no-trailing-spaces": 2,
        "no-underscore-dangle": 1,
        "object-shorthand": 0,
        "one-var": [2, "never"],
        "operator-assignment": 0,
        "padded-blocks": 0,
        "quote-props": [2, "consistent-as-needed"],
        "quotes": [2, "single", "avoid-escape"],
        "semi": [2, "always"],
        "semi-spacing": [2, { "before": false, "after": true }],
        "sort-vars": 0,
        "keyword-spacing": 2,
        "space-before-blocks": [2, "always"],
        "space-before-function-paren": [2, { "anonymous": "never", "named": "never" }],
        "space-in-brackets": 0,
        "space-in-parens": 0,
        "space-infix-ops": 2,
        "space-unary-ops": [1, { "words": true, "nonwords": false }],
        "spaced-comment": [2, "always", { "exceptions": ["-"] }],
        "wrap-regex": 2,
        "max-depth": 0,
        "max-len": [1, 140, 4],
        "max-params": [1, 4],
        "max-statements": 0,
        "no-plusplus": 0,
        "object-curly-spacing": 0
    }
}