.eslintrc.json

{
    "env": {
        "browser": true,
        "es6": true,
        "serviceworker": true
    },
    "extends": "eslint:recommended",
    "parserOptions": {
        "ecmaVersion": 6
    },
    "rules": {
        "accessor-pairs": "error",
        "array-bracket-spacing": "error",
        "array-callback-return": "error",
        "arrow-parens": ["error", "as-needed"],
        "arrow-spacing": "error",
        "block-scoped-var": "error",
        "block-spacing": "error",
        "brace-style": "error",
        "camelcase": "error",
        "class-methods-use-this": "error",
        "comma-dangle": "error",
        "comma-spacing": "error",
        "comma-style": "error",
        "computed-property-spacing": "error",
        "dot-notation": "error",
        "eol-last": "error",
        "eqeqeq": "error",
        "func-call-spacing": "error",
        "func-name-matching": "error",
        "guard-for-in": "error",
        "indent": ["error", 4, {"SwitchCase": 1}],
        "key-spacing": "error",
        "keyword-spacing": "error",
        "line-comment-position": "error",
        "linebreak-style": "error",
        "lines-around-comment": ["error", {"allowBlockStart": true}],
        "lines-around-directive": "error",
        "max-depth": ["error", 6],
        "max-nested-callbacks": "error",
        "max-params": ["error", 4],
        "max-statements-per-line": "error",
        "new-cap": "error",
        "newline-after-var": "error",
        "newline-before-return": "error",
        "no-alert": "error",
        "no-array-constructor": "error",
        "no-await-in-loop": "error",
        "no-bitwise": ["error", {"allow": ["~"]}],
        "no-caller": "error",
        "no-catch-shadow": "error",
        "no-console": "off",
        "no-continue": "error",
        "no-div-regex": "error",
        "no-duplicate-imports": "error",
        "no-else-return": "error",
        "no-empty": ["error", {"allowEmptyCatch": true}],
        "no-empty-function": "error",
        "no-eq-null": "error",
        "no-eval": "error",
        "no-extra-bind": "error",
        "no-extra-label": "error",
        "no-floating-decimal": "error",
        "no-implicit-globals": "error",
        "no-implied-eval": "error",
        "no-iterator": "error",
        "no-label-var": "error",
        "no-labels": "error",
        "no-lone-blocks": "error",
        "no-lonely-if": "error",
        "no-loop-func": "error",
        "no-multi-spaces": "error",
        "no-multi-str": "error",
        "no-multiple-empty-lines": "error",
        "no-negated-condition": "error",
        "no-new-func": "error",
        "no-new-object": "error",
        "no-new-wrappers": "error",
        "no-new": "error",
        "no-octal-escape": "error",
        "no-plusplus": "error",
        "no-proto": "error",
        "no-restricted-properties": "error",
        "no-return-assign": "error",
        "no-return-await": "error",
        "no-script-url": "error",
        "no-self-compare": "error",
        "no-sequences": "error",
        "no-shadow-restricted-names": "error",
        "no-shadow": "error",
        "no-tabs": "error",
        "no-template-curly-in-string": "error",
        "no-throw-literal": "error",
        "no-trailing-spaces": "error",
        "no-undef-init": "error",
        "no-undef": "off",
        "no-underscore-dangle": "off",
        "no-unmodified-loop-condition": "error",
        "no-unneeded-ternary": "error",
        "no-use-before-define": "error",
        "no-useless-call": "error",
        "no-useless-computed-key": "error",
        "no-useless-concat": "error",
        "no-useless-constructor": "error",
        "no-useless-escape": "error",
        "no-useless-rename": "error",
        "no-useless-return": "error",
        "no-void": "error",
        "no-whitespace-before-property": "error",
        "no-with": "error",
        "nonblock-statement-body-position": "error",
        "object-curly-spacing": "error",
        "object-property-newline": "error",
        "one-var": "error",
        "operator-assignment": "error",
        "operator-linebreak": ["error", "after"],
        "prefer-const": "error",
        "prefer-numeric-literals": "error",
        "prefer-promise-reject-errors": "error",
        "quote-props": ["error", "as-needed"],
        "quotes": "error",
        "radix": "error",
        "require-await": "error",
        "rest-spread-spacing": "error",
        "semi-spacing": "error",
        "semi": "error",
        "sort-imports": "error",
        "space-before-blocks": "error",
        "space-before-function-paren": ["error", {"named": "never"}],
        "space-in-parens": "error",
        "space-unary-ops": "error",
        "spaced-comment": "error",
        "strict": ["error", "function"],
        "symbol-description": "error",
        "template-curly-spacing": "error",
        "template-tag-spacing": "error",
        "unicode-bom": "error",
        "wrap-iife": ["error", "outside"],
        "yoda": "error"
    }
}