.eslintrc.json

{
  "parserOptions": {
    "ecmaVersion": 2020,
    "ecmaFeatures": {
      "jsx": true
    },
    "sourceType": "module"
  },

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

  "plugins": [],

  "globals": {
    "document": false,
    "navigator": false,
    "window": false,
    "expect": true,
    "test": true,
    "sinon": true,
    "angular": true
  },

  "rules": {
    "accessor-pairs": 2,
    "arrow-spacing": [2, {"before": true, "after": true}],
    "block-spacing": [2, "always"],
    "brace-style": [2, "1tbs", {"allowSingleLine": true}],
    "camelcase": [2, {"properties": "never"}],
    "comma-dangle": [2, "never"],
    "comma-spacing": [2, {"before": false, "after": true}],
    "comma-style": [2, "last"],
    "computed-property-spacing": [2, "never"],
    "constructor-super": 2,
    "curly": [2, "multi-line"],
    "dot-location": [2, "property"],
    "eol-last": [2, "always"],
    "eqeqeq": [2, "allow-null"],
    "func-call-spacing": [2, "never"],
    "callback-return": [1, ["callback", "cb", "done"]],
    "handle-callback-err": [2, "^(err|error)$"],
    "indent": [2, 2, {
      "SwitchCase": 1,
      "VariableDeclarator": 1,
      "outerIIFEBody": 1,
      "FunctionDeclaration": {
        "parameters": 1,
        "body": 1
      },
      "FunctionExpression": {
        "parameters": 1,
        "body": 1
      }
    }],
    "key-spacing": [2, {"beforeColon": false, "afterColon": true}],
    "keyword-spacing": [2, {"before": true, "after": true}],
    "linebreak-style": [2, "unix"],
    "max-len": ["error", {
      "code": 100,
      "ignoreRegExpLiterals": true,
      "ignorePattern": "\\s+require\\(|\\s+require\\.resolve\\(|https?://|\\s+it\\(|\\s+describe\\("
    }],
    "new-cap": [2, {"newIsCap": true, "capIsNew": false}],
    "new-parens": 2,
    "newline-per-chained-call": [2, {"ignoreChainWithDepth": 4}],
    "no-array-constructor": 2,
    "no-caller": 2,
    "no-class-assign": 2,
    "no-cond-assign": 2,
    "no-console": [1, {"allow": ["error"]}],
    "no-const-assign": 2,
    "no-constant-condition": [2, {"checkLoops": false}],
    "no-control-regex": 2,
    "no-debugger": 2,
    "no-delete-var": 2,
    "no-dupe-args": 2,
    "no-dupe-class-members": 2,
    "no-dupe-keys": 2,
    "no-duplicate-case": 2,
    "no-duplicate-imports": 2,
    "no-empty-character-class": 2,
    "no-empty-pattern": 2,
    "no-eval": 2,
    "no-ex-assign": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-extra-boolean-cast": 2,
    "no-extra-parens": [2, "functions"],
    "no-fallthrough": 2,
    "no-floating-decimal": 2,
    "no-func-assign": 2,
    "no-global-assign": 2,
    "no-implied-eval": 2,
    "no-inner-declarations": [2, "functions"],
    "no-invalid-regexp": 2,
    "no-irregular-whitespace": 2,
    "no-iterator": 2,
    "no-label-var": 2,
    "no-labels": [2, {"allowLoop": false, "allowSwitch": false}],
    "no-lone-blocks": 2,
    "no-lonely-if": 2,
    "no-mixed-operators": [2, {
      "groups": [
        ["+", "-", "*", "/", "%", "**"],
        ["&", "|", "^", "~", "<<", ">>", ">>>"],
        ["==", "!=", "===", "!==", ">", ">=", "<", "<="],
        ["&&", "||"],
        ["in", "instanceof"]
      ],
      "allowSamePrecedence": false
    }],
    "no-mixed-spaces-and-tabs": 2,
    "no-multi-spaces": 2,
    "no-multi-str": 2,
    "no-multiple-empty-lines": [2, {"max": 2}],
    "no-native-reassign": 2,
    "no-negated-in-lhs": 2,
    "no-nested-ternary": 2,
    "no-new": 2,
    "no-new-func": 2,
    "no-new-object": 2,
    "no-new-require": 2,
    "no-new-symbol": 2,
    "no-new-wrappers": 2,
    "no-obj-calls": 2,
    "no-octal": 2,
    "no-octal-escape": 2,
    "no-path-concat": 2,
    "no-proto": 2,
    "no-redeclare": 2,
    "no-regex-spaces": 2,
    "no-return-assign": [2, "except-parens"],
    "no-self-assign": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-shadow-restricted-names": 2,
    "no-shadow": ["error", { "allow": [
      "argv",
      "callback",
      "cb",
      "done",
      "err",
      "params"
    ] }],
    "no-sparse-arrays": 2,
    "no-tabs": 2,
    "no-template-curly-in-string": 2,
    "no-this-before-super": 2,
    "no-throw-literal": 2,
    "no-trailing-spaces": 2,
    "no-undef": 2,
    "no-undef-init": 2,
    "no-unexpected-multiline": 2,
    "no-unmodified-loop-condition": 2,
    "no-unneeded-ternary": [2, {"defaultAssignment": false}],
    "no-unreachable": 2,
    "no-unsafe-finally": 2,
    "no-unsafe-negation": 2,
    "no-unused-vars": [2, {"vars": "all", "args": "none"}],
    "no-useless-call": 2,
    "no-useless-computed-key": 2,
    "no-useless-constructor": 2,
    "no-useless-escape": 2,
    "no-useless-rename": 2,
    "no-var": 2,
    "no-whitespace-before-property": 2,
    "no-with": 2,
    "object-curly-spacing": [2, "never"],
    "object-property-newline": [2, {"allowMultiplePropertiesPerLine": true}],
    "one-var": [2, {"initialized": "never"}],
    "operator-linebreak": [2, "after", {"overrides": {"?": "before", ":": "before"}}],
    "padded-blocks": [0, "never"],
    "prefer-template": 2,
    "prefer-const": [2, {"destructuring": "any", "ignoreReadBeforeAssign": true}],
    "quotes": [2, "single", {"avoidEscape": true, "allowTemplateLiterals": true}],
    "rest-spread-spacing": [2, "never"],
    "semi": [2, "never"],
    "semi-spacing": [2, {"before": false, "after": true}],
    "space-before-blocks": [2, "always"],
    "space-before-function-paren": [2, "always"],
    "space-in-parens": [2, "never"],
    "space-infix-ops": 2,
    "space-unary-ops": [2, {"words": true, "nonwords": false}],
    "spaced-comment": [2, "always",
      {"line": {"markers": ["*package", "!", ","]}, "block": {"balanced": true, "markers": ["*package", "!", ","], "exceptions": ["*"]}}
    ],
    "template-curly-spacing": [2, "never"],
    "unicode-bom": [2, "never"],
    "use-isnan": 2,
    "valid-typeof": 2,
    "wrap-iife": [2, "any", {"functionPrototypeMethods": true}],
    "yield-star-spacing": [2, "both"],
    "yoda": [2, "never"]
  }
}