.eslintrc

{
    "parserOptions": {
      "ecmaVersion": 2020,
      "sourceType": "module"
    },
  
    "env": {
      "es6": true,
      "node": true
    },
  
    "plugins": [
      "import",
      "node",
      "promise",
      "standard"
    ],
  
    "globals": {
      "document": "readonly",
      "navigator": "readonly",
      "window": "readonly"
    },
  
    "rules": {
      "accessor-pairs": "error",
      "array-bracket-spacing": ["error", "never"],
      "arrow-spacing": ["error", { "before": true, "after": true }],
      "block-spacing": ["error", "always"],
      "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
      "camelcase": ["error", { "properties": "never" }],
      "comma-dangle": ["error", {
        "arrays": "never",
        "objects": "never",
        "imports": "never",
        "exports": "never",
        "functions": "never"
      }],
      "padding-line-between-statements": [
        "error",
        {
            "blankLine": "always",
            "prev": "*",
            "next": "*"
        },
        {
            "blankLine": "never",
            "prev": "import",
            "next": "import"
        }
    ],
      "comma-spacing": ["error", { "before": false, "after": true }],
      "comma-style": ["error", "last"],
      "computed-property-spacing": ["error", "never"],
      "constructor-super": "error",
      "curly": ["error", "multi-line"],
      "dot-location": ["error", "property"],
      "dot-notation": ["error", { "allowKeywords": true }],
      "eol-last": "error",
      "eqeqeq": ["error", "always", { "null": "ignore" }],
      "func-call-spacing": ["error", "never"],
      "generator-star-spacing": ["error", { "before": true, "after": true }],
      "handle-callback-err": ["error", "^(err|error)$" ],
      "indent": ["error", 2, {
        "SwitchCase": 1,
        "VariableDeclarator": 1,
        "outerIIFEBody": 1,
        "MemberExpression": 1,
        "FunctionDeclaration": { "parameters": 1, "body": 1 },
        "FunctionExpression": { "parameters": 1, "body": 1 },
        "CallExpression": { "arguments": 1 },
        "ArrayExpression": 1,
        "ObjectExpression": 1,
        "ImportDeclaration": 1,
        "flatTernaryExpressions": false,
        "ignoreComments": false,
        "ignoredNodes": ["TemplateLiteral *"]
      }],
      "key-spacing": ["error", { "beforeColon": false, "afterColon": true }],
      "keyword-spacing": ["error", { "before": true, "after": true }],
      "lines-between-class-members": ["error", "always", { "exceptAfterSingleLine": true }],
      "new-cap": ["error", { "newIsCap": true, "capIsNew": false, "properties": true }],
      "new-parens": "error",
      "no-array-constructor": "error",
      "no-async-promise-executor": "error",
      "no-caller": "error",
      "no-case-declarations": "error",
      "no-class-assign": "error",
      "no-compare-neg-zero": "error",
      "no-cond-assign": "error",
      "no-const-assign": "warn",
      "no-constant-condition": ["error", { "checkLoops": false }],
      "no-control-regex": "error",
      "no-debugger": "error",
      "no-delete-var": "error",
      "no-dupe-args": "error",
      "no-dupe-class-members": "error",
      "no-dupe-keys": "error",
      "no-duplicate-case": "error",
      "no-empty-character-class": "error",
      "no-empty-pattern": "error",
      "no-eval": "error",
      "no-ex-assign": "error",
      "no-extend-native": "error",
      "no-extra-bind": "error",
      "no-extra-boolean-cast": "error",
      "no-extra-parens": ["error", "functions"],
      "no-fallthrough": "error",
      "no-floating-decimal": "error",
      "no-func-assign": "error",
      "no-global-assign": "error",
      "no-implied-eval": "error",
      "no-inner-declarations": ["error", "functions"],
      "no-invalid-regexp": "error",
      "no-irregular-whitespace": "error",
      "no-iterator": "error",
      "no-labels": ["error", { "allowLoop": false, "allowSwitch": false }],
      "no-lone-blocks": "error",
      "no-misleading-character-class": "error",
      "no-prototype-builtins": "error",
      "no-useless-catch": "error",
      "no-mixed-operators": ["error", {
        "groups": [
          ["==", "!=", "===", "!==", ">", ">=", "<", "<="],
          ["&&", "||"],
          ["in", "instanceof"]
        ],
        "allowSamePrecedence": true
      }],
      "no-mixed-spaces-and-tabs": "error",
      "no-multi-spaces": "error",
      "no-multi-str": "error",
      "no-multiple-empty-lines": ["error", { "max": 1, "maxEOF": 0 }],
      "no-negated-in-lhs": "error",
      "no-new": "error",
      "no-new-func": "error",
      "no-new-object": "error",
      "no-new-require": "error",
      "no-new-symbol": "error",
      "no-new-wrappers": "error",
      "no-obj-calls": "error",
      "no-octal": "error",
      "no-octal-escape": "error",
      "no-path-concat": "error",
      "no-proto": "error",
      "no-redeclare": ["error", { "builtinGlobals": false }],
      "no-regex-spaces": "error",
      "no-return-assign": ["error", "except-parens"],
      "no-return-await": "error",
      "no-self-assign": ["error", { "props": true }],
      "no-self-compare": "error",
      "no-sequences": "error",
      "no-shadow-restricted-names": "error",
      "no-sparse-arrays": "error",
      "no-tabs": "error",
      "no-template-curly-in-string": "error",
      "no-this-before-super": "error",
      "no-throw-literal": "error",
      "no-trailing-spaces": "error",
      "no-undef": "error",
      "no-undef-init": "error",
      "no-unexpected-multiline": "error",
      "no-unmodified-loop-condition": "error",
      "no-unneeded-ternary": ["error", { "defaultAssignment": false }],
      "no-unreachable": "error",
      "no-unsafe-finally": "error",
      "no-unsafe-negation": "error",
      "no-unused-expressions": ["error", { "allowShortCircuit": true, "allowTernary": true, "allowTaggedTemplates": true }],
      "no-unused-vars": ["warn", { "vars": "all", "args": "none", "ignoreRestSiblings": true }],
      "no-use-before-define": ["error", { "functions": false, "classes": false, "variables": false }],
      "no-useless-call": "error",
      "no-useless-computed-key": "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",
      "object-curly-newline": ["error", { "multiline": true, "consistent": true }],
      "object-curly-spacing": ["error", "always"],
      "object-property-newline": ["error", { "allowMultiplePropertiesPerLine": true }],
      "one-var": ["error", { "initialized": "never" }],
      "operator-linebreak": ["error", "after", { "overrides": { "?": "before", ":": "before", "|>": "before" } }],
      "padded-blocks": ["error", { "blocks": "never", "switches": "never", "classes": "never" }],
      "prefer-const": ["warn", {"destructuring": "all"}],
      "prefer-promise-reject-errors": "error",
      "quote-props": ["error", "as-needed"],
      "rest-spread-spacing": ["error", "never"],
      "semi-spacing": ["error", { "before": false, "after": true }],
      "space-before-blocks": ["error", "always"],
      "space-in-parens": ["error", "never"],
      "space-infix-ops": "error",
      "space-unary-ops": ["error", { "words": true, "nonwords": false }],
      "spaced-comment": ["error", "always", {
        "line": { "markers": ["*package", "!", "/", ",", "="] },
        "block": { "balanced": true, "markers": ["*package", "!", ",", ":", "::", "flow-include"], "exceptions": ["*"] }
      }],
      "symbol-description": "error",
      "template-curly-spacing": ["error", "never"],
      "template-tag-spacing": ["error", "never"],
      "unicode-bom": ["error", "never"],
      "use-isnan": "error",
      "valid-typeof": ["error", { "requireStringLiterals": true }],
      "wrap-iife": ["error", "any", { "functionPrototypeMethods": true }],
      "yield-star-spacing": ["error", "both"],
      "yoda": ["error", "never"],
  
      "import/export": "error",
      "import/first": "error",
      "import/no-absolute-path": ["error", { "esmodule": true, "commonjs": true, "amd": false }],
      "import/no-duplicates": "error",
      "import/no-named-default": "error",
      "import/no-webpack-loader-syntax": "error",
  
      "node/no-deprecated-api": "error",
      "node/process-exit-as-throw": "error",
  
      "promise/param-names": "error",
  
      "standard/no-callback-literal": "error"
    }
  }