.eslintrc.js

module.exports = {
    "root": true,
    "env": {
        "node": true,
        "jest": true,
    },
    "extends": [
        "standard",
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking",
    ],
    "ignorePatterns": [
        "node_modules",
        ".dist",
    ],
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "project": "tsconfig.json",
        "sourceType": "module"
    },
    "plugins": [
        "jsdoc",
        "prefer-arrow",
        "@typescript-eslint",
        "@typescript-eslint/tslint",
        "jest"
    ],
    "rules": {
        "curly": "error",
        "comma-dangle": [
            "error",
            {
                "objects": "always-multiline",
                "arrays": "always-multiline",
                "functions": "never"
            }
        ],
        "max-lines": "warn",
        "brace-style": [
            "error",
            "1tbs",
            {
                "allowSingleLine": false
            }
        ],
        "padding-line-between-statements": [
            "error",
            {
                "blankLine": "always",
                "prev": [
                    "const",
                    "let",
                    "var"
                ],
                "next": "*"
            },
            {
                "blankLine": "any",
                "prev": [
                    "const",
                    "let",
                    "var"
                ],
                "next": [
                    "const",
                    "let",
                    "var"
                ]
            }
        ],
        "no-console": [
            "error",
            {
                "allow": [
                    "info",
                    "warn",
                    "error"
                ]
            }
        ],
        "jsdoc/check-alignment": "warn",
        "jsdoc/check-examples": "warn",
        "jsdoc/check-syntax": "warn",
        "jsdoc/check-tag-names": "warn",
        "jsdoc/check-types": "warn",
        "jsdoc/implements-on-classes": "warn",
        "jsdoc/match-description": "warn",
        "jsdoc/newline-after-description": "warn",
        "jsdoc/require-description": "warn",
        "jsdoc/require-jsdoc": "warn",
        "jsdoc/require-param": "warn",
        "jsdoc/require-param-description": "warn",
        "jsdoc/require-param-name": "warn",
        "jsdoc/require-param-type": "warn",
        "jsdoc/require-returns": "warn",
        "jsdoc/require-returns-check": "warn",
        "jsdoc/require-returns-description": "warn",
        "jsdoc/require-returns-type": "warn",
        "jsdoc/valid-types": "warn",
        "@typescript-eslint/adjacent-overload-signatures": "error",
        "@typescript-eslint/ban-ts-ignore": "error",
        "@typescript-eslint/ban-types": "error",
        "camelcase": "error",
        "@typescript-eslint/camelcase": "error",
        "@typescript-eslint/class-name-casing": "error",
        "@typescript-eslint/consistent-type-assertions": "error",
        "@typescript-eslint/explicit-function-return-type": "warn",
        "@typescript-eslint/interface-name-prefix": "off",
        "@typescript-eslint/member-delimiter-style": [
            "error",
            {
                "multiline": {
                    "delimiter": "none",
                    "requireLast": true
                },
                "singleline": {
                    "delimiter": "semi",
                    "requireLast": false
                }
            }
        ],
        "no-array-constructor": "off",
        "@typescript-eslint/no-array-constructor": "error",
        "no-empty-function": "off",
        "@typescript-eslint/no-empty-function": "error",
        "@typescript-eslint/no-empty-interface": "error",
        "@typescript-eslint/no-explicit-any": "off",
        "@typescript-eslint/no-inferrable-types": "error",
        "@typescript-eslint/no-misused-new": "error",
        "@typescript-eslint/no-namespace": "error",
        "@typescript-eslint/no-non-null-assertion": "warn",
        "@typescript-eslint/no-this-alias": "error",
        "no-unused-vars": [
            "off",
            {
                "vars": "all",
                "args": "none",
                "ignoreRestSiblings": true
            }
        ],
        "@typescript-eslint/no-unused-vars": "warn",
        "no-use-before-define": [
            "off",
            {
                "functions": false,
                "classes": false,
                "variables": false
            }
        ],
        "@typescript-eslint/no-use-before-define": "off",
        "@typescript-eslint/no-var-requires": "error",
        "@typescript-eslint/prefer-namespace-keyword": "error",
        "@typescript-eslint/triple-slash-reference": "error",
        "@typescript-eslint/type-annotation-spacing": "error",
        "no-var": "error",
        "prefer-const": [
            "error",
            {
                "destructuring": "all",
                "ignoreReadBeforeAssign": false
            }
        ],
        "prefer-rest-params": "error",
        "prefer-spread": "error",
        "accessor-pairs": "error",
        "array-bracket-spacing": [
            "error",
            "never"
        ],
        "arrow-spacing": [
            "error",
            {
                "before": true,
                "after": true
            }
        ],
        "block-spacing": [
            "error",
            "always"
        ],
        "comma-spacing": [
            "error",
            {
                "before": false,
                "after": true
            }
        ],
        "comma-style": [
            "error",
            "last"
        ],
        "computed-property-spacing": [
            "error",
            "never"
        ],
        "constructor-super": "error",
        "dot-location": [
            "error",
            "property"
        ],
        "dot-notation": "off",
        "eol-last": "error",
        "eqeqeq": [
            "error",
            "smart"
        ],
        "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-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": "error",
        "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": "off",
        "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",
        "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-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
            }
        ],
        "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,
                "allowAllPropertiesOnSameLine": false
            }
        ],
        "one-var": [
            "error",
            "never"
        ],
        "operator-linebreak": [
            "error",
            "after",
            {
                "overrides": {
                    "?": "before",
                    ":": "before",
                    "|>": "before"
                }
            }
        ],
        "padded-blocks": [
            "error",
            {
                "blocks": "never",
                "switches": "never",
                "classes": "never"
            }
        ],
        "prefer-promise-reject-errors": "error",
        "quote-props": [
            "error",
            "consistent-as-needed"
        ],
        "quotes": [
            "error",
            "single",
            {
                "avoidEscape": true,
                "allowTemplateLiterals": false
            }
        ],
        "rest-spread-spacing": [
            "error",
            "never"
        ],
        "semi": [
            "error",
            "never"
        ],
        "semi-spacing": [
            "error",
            {
                "before": false,
                "after": true
            }
        ],
        "space-before-blocks": [
            "error",
            "always"
        ],
        "space-before-function-paren": [
            "error",
            {
                "anonymous": "never",
                "asyncArrow": "always",
                "named": "never"
            }
        ],
        "space-in-parens": [
            "error",
            "never"
        ],
        "space-infix-ops": "error",
        "space-unary-ops": [
            "error",
            {
                "words": true,
                "nonwords": false
            }
        ],
        "spaced-comment": "error",
        "symbol-description": "error",
        "template-curly-spacing": [
            "error",
            "never"
        ],
        "template-tag-spacing": [
            "error",
            "never"
        ],
        "unicode-bom": [
            "error",
            "never"
        ],
        "use-isnan": "error",
        "valid-typeof": "off",
        "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",
        "for-direction": "error",
        "getter-return": "error",
        "no-empty": "error",
        "no-extra-semi": "error",
        "no-unused-labels": "error",
        "require-atomic-updates": "error",
        "require-yield": "error",
        "@typescript-eslint/array-type": "error",
        "@typescript-eslint/consistent-type-definitions": "error",
        "@typescript-eslint/explicit-member-accessibility": [
            "off",
            {
                "accessibility": "explicit"
            }
        ],
        "@typescript-eslint/member-ordering": "off",
        "@typescript-eslint/no-parameter-properties": "off",
        "@typescript-eslint/prefer-for-of": "error",
        "@typescript-eslint/prefer-function-type": "error",
        "@typescript-eslint/quotes": [
            "error",
            "single"
        ],
        "@typescript-eslint/semi": [
            "error",
            "never"
        ],
        "@typescript-eslint/unified-signatures": "error",
        "arrow-body-style": "error",
        "arrow-parens": [
            "off",
            "as-needed"
        ],
        "complexity": "off",
        "guard-for-in": "error",
        "id-blacklist": [
            "error",
            "any",
            "Number",
            "number",
            "String",
            "string",
            "Boolean",
            "boolean",
            "Undefined",
        ],
        "id-match": "error",
        "import/order": "off",
        "max-classes-per-file": [
            "error",
            1
        ],
        "max-len": [
            "error",
            {
                "code": 150
            }
        ],
        "no-bitwise": "error",
        "no-invalid-this": "off",
        "no-shadow": [
            "error",
            {
                "hoist": "all"
            }
        ],
        "no-underscore-dangle": "error",
        "object-shorthand": "error",
        "radix": "error",
        "@typescript-eslint/tslint/config": [
            "error",
            {
                "rules": {
                    "import-spacing": true,
                    "jsdoc-format": true,
                    "no-reference-import": true,
                    "one-line": [
                        true,
                        "check-catch",
                        "check-else",
                        "check-finally",
                        "check-open-brace",
                        "check-whitespace"
                    ],
                    "whitespace": [
                        true,
                        "check-module",
                        "check-branch"
                    ]
                }
            }
        ],
        // Jest rules
        "jest/no-disabled-tests": "warn",
        "jest/no-focused-tests": "error",
        "jest/no-identical-title": "error",
        "jest/prefer-to-have-length": "warn",
        "jest/valid-expect": "error",
        "jest/expect-expect": [
            "error",
            {
              "assertFunctionNames": ["expect"],
            }
        ],
        "jest/valid-title": "error",
    },
    "settings": {}
}