.eslintrc

{
  "root": true,
  "env": {
    "jest": true,
    "node": true,
    "es6": true
  },
  "parser": "@typescript-eslint/parser",
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      "typescript": {}
    },
    "import/ignore": ["mathjs"]
  },
  "globals": {
    // Needed so Bun can be used everywhere and not throw an error in the linter
    "Bun": false
  },
  /**================================================================================================
   *                                         Typescript overrides
   *================================================================================================**/
  "overrides": [
    {
      "files": ["*.ts", "*.tsx"],
      "parserOptions": {
        "project": ["./tsconfig.json"]
      },
      "extends": ["prettier", "eslint:recommended"],
      "plugins": ["import", "@typescript-eslint", "prettier"],
      "rules": {
        /** ======================================== Prettier        ============================================ */
        "prettier/prettier": "error",

        /** ================================== eslint  ============================================ */
        /** eslint possible problems*/
        "array-callback-return": "error",
        "no-constant-binary-expression": "error",
        "no-constructor-return": "error",
        "no-new-native-nonconstructor": "error",
        "no-promise-executor-return": "error",
        "no-self-compare": "error",
        "no-template-curly-in-string": "error",
        "no-unmodified-loop-condition": "error",
        "no-unreachable-loop": "error",
        "no-unused-private-class-members": "error",
        "require-atomic-updates": "error",
        "block-scoped-var": "error",

        /** eslint suggestions */
        "arrow-body-style": ["error", "as-needed"],
        "camelcase": ["error"],
        "complexity": ["error", 15],
        "curly": ["error", "multi-line"],
        "default-case": "error",
        "default-case-last": "error",
        "eqeqeq": "error",
        "func-name-matching": "error",
        "func-style": ["error", "expression"],
        "guard-for-in": "error",
        "logical-assignment-operators": "error",
        "max-classes-per-file": ["error", 1],
        "max-depth": ["error", 4],
        "max-lines": ["error", 300],
        "max-lines-per-function": ["error", { "max": 100, "skipBlankLines": true, "skipComments": true }], //50
        "max-nested-callbacks": ["error", 3],
        "max-params": ["error", 3],
        "max-statements": ["error", 15],
        "new-cap": "error",
        "no-alert": "error",
        "no-bitwise": "error",
        "no-confusing-arrow": "error",
        "no-console": "error",
        "no-else-return": "error",
        "no-empty": "error",
        "no-empty-static-block": "error",
        "no-eq-null": "error",
        "no-eval": "error",
        "no-extend-native": "error",
        "no-fallthrough": "off", // Turn this off because typescript has a better way to handle this
        "no-extra-bind": "error",
        "no-extra-label": "error",
        "no-floating-decimal": "error",
        "no-implicit-coercion": ["error", { "boolean": false, "number": true, "string": true }],
        "no-implicit-globals": "error",
        "no-inline-comments": "warn",
        "no-iterator": "error",
        "no-labels": "error",
        "no-lone-blocks": "error",
        "no-lonely-if": "error",
        "no-mixed-operators": "error",
        "no-multi-assign": "error",
        "no-multi-str": "error",
        "no-negated-condition": "error",
        "no-nested-ternary": "error",
        "no-new": "error",
        "no-new-func": "error",
        "no-new-object": "error",
        "no-new-wrappers": "error",
        "no-param-reassign": "error",
        "no-return-assign": ["error", "except-parens"],
        "no-script-url": "error",
        "no-unneeded-ternary": "error",
        "no-useless-call": "error",
        "no-useless-concat": "error",
        "no-useless-return": "error",
        "no-useless-computed-key": "error",
        "no-useless-rename": "error",
        "no-var": "error",
        "no-useless-escape": "error",
        "object-shorthand": "error",
        "one-var": ["error", "never"],
        "operator-assignment": "error",
        "prefer-arrow-callback": "error",
        "prefer-const": "error",
        "prefer-destructuring": "error",
        "prefer-named-capture-group": "error",
        "prefer-numeric-literals": "error",
        "prefer-object-spread": "error",
        "prefer-promise-reject-errors": "error",
        "prefer-regex-literals": "error",
        "prefer-rest-params": "error",
        "prefer-spread": "error",
        "prefer-template": "error",
        "radix": "error",
        "require-unicode-regexp": "off",
        "sort-imports": ["error", { "ignoreDeclarationSort": true }],
        "sort-vars": "error",
        "spaced-comment": ["error", "always"],
        "vars-on-top": "error",
        "yoda": ["error", "never", { "exceptRange": true }],

        /** eslint layout and formatting */
        "array-bracket-spacing": ["error", "never"],
        "comma-dangle": ["error", "always-multiline"],
        "comma-spacing": ["error", { "before": false, "after": true }],
        "semi-spacing": ["error", { "before": false, "after": true }],
        "space-before-blocks": ["error", "always"],
        "space-before-function-paren": ["error", { "anonymous": "always", "named": "never", "asyncArrow": "always" }],
        "space-infix-ops": "error",
        "space-unary-ops": ["error", { "words": true, "nonwords": false }],
        "template-curly-spacing": ["error", "never"],
        "wrap-regex": "error",

        /** ======================================== import plugin ============================================ */
        "import/export": "error",
        "import/no-deprecated": "error",
        "import/no-empty-named-blocks": "error",
        "import/no-mutable-exports": "error",
        "import/no-named-as-default-member": "error",
        "import/no-unused-modules": "error",
        "import/no-amd": "error",
        "import/no-commonjs": "error",
        "import/default": "error",
        "import/named": "error",
        "import/namespace": "error",
        "import/no-absolute-path": "error",
        "import/no-dynamic-require": "error",
        "import/no-unresolved": "off",
        "import/no-useless-path-segments": "error",
        "import/consistent-type-specifier-style": "error",
        "import/extensions": ["error", "always", { "ignorePackages": true }],
        "import/first": "error",
        "import/group-exports": "error",
        "import/newline-after-import": "error",
        "import/no-duplicates": "error",
        "import/order": "error",

        /** ======================================== typescript-eslint plugin ============================================ */
        /** typescript rules */
        "@typescript-eslint/adjacent-overload-signatures": "error",
        "@typescript-eslint/array-type": ["error", { "default": "generic" }],
        "@typescript-eslint/await-thenable": "error",
        "@typescript-eslint/ban-types": "error",
        "@typescript-eslint/class-literal-property-style": "error",
        "@typescript-eslint/consistent-generic-constructors": "error",
        "@typescript-eslint/consistent-indexed-object-style": ["error", "record"],
        "@typescript-eslint/consistent-type-assertions": ["error", { "assertionStyle": "angle-bracket" }],
        "@typescript-eslint/consistent-type-definitions": ["error", "interface"],
        "@typescript-eslint/consistent-type-exports": ["error", { "fixMixedExportsWithInlineTypeSpecifier": true }],
        "@typescript-eslint/explicit-function-return-type": "error",
        "@typescript-eslint/explicit-member-accessibility": ["error", { "accessibility": "no-public" }],
        "@typescript-eslint/consistent-type-imports": [
          "error",
          { "prefer": "type-imports", "disallowTypeAnnotations": true, "fixStyle": "separate-type-imports" }
        ],
        "@typescript-eslint/explicit-module-boundary-types": "error",
        "@typescript-eslint/method-signature-style": ["error", "property"],
        "@typescript-eslint/naming-convention": [
          "error",

          {
            "selector": ["variable"],
            "format": ["strictCamelCase", "StrictPascalCase", "UPPER_CASE"],
            "leadingUnderscore": "allow"
          },
          {
            "selector": ["parameter", "typeProperty"],
            "format": ["strictCamelCase", "StrictPascalCase"],
            "leadingUnderscore": "allow"
          },
          {
            "selector": ["enumMember"],
            "format": ["UPPER_CASE"]
          },
          {
            "selector": ["interface", "typeParameter", "enum"],
            "format": ["StrictPascalCase"]
          }
        ],
        "@typescript-eslint/no-base-to-string": "error",
        "@typescript-eslint/no-confusing-non-null-assertion": "error",
        "@typescript-eslint/no-confusing-void-expression": ["error", { "ignoreArrowShorthand": true, "ignoreVoidOperator": true }],
        "@typescript-eslint/no-duplicate-enum-values": "error",
        "@typescript-eslint/no-duplicate-type-constituents": "error",
        "@typescript-eslint/no-dynamic-delete": "error",
        "@typescript-eslint/no-empty-interface": "error",
        "@typescript-eslint/no-explicit-any": ["error", { "ignoreRestArgs": true, "fixToUnknown": true }],
        "@typescript-eslint/no-extra-non-null-assertion": "error",
        "@typescript-eslint/no-extraneous-class": "error",
        "@typescript-eslint/no-floating-promises": ["error", { "ignoreVoid": false }],
        "@typescript-eslint/no-for-in-array": "error",
        "@typescript-eslint/no-import-type-side-effects": "error",
        "@typescript-eslint/no-inferrable-types": "error",
        "@typescript-eslint/no-invalid-void-type": ["error", { "allowAsThisParameter": true, "allowInGenericTypeArguments": true }],
        "@typescript-eslint/no-misused-new": "error",
        "@typescript-eslint/no-misused-promises": "error",
        "@typescript-eslint/no-mixed-enums": "error",
        "@typescript-eslint/no-namespace": "error",
        "@typescript-eslint/no-non-null-asserted-nullish-coalescing": "error",
        "@typescript-eslint/no-non-null-asserted-optional-chain": "error",
        "@typescript-eslint/no-non-null-assertion": "error",
        "@typescript-eslint/no-require-imports": "error",
        "@typescript-eslint/no-this-alias": "error",
        "@typescript-eslint/no-unnecessary-boolean-literal-compare": "error",
        "@typescript-eslint/no-unnecessary-condition": ["error", { "allowConstantLoopConditions": true }],
        "@typescript-eslint/no-unnecessary-qualifier": "error",
        "@typescript-eslint/no-unnecessary-type-arguments": "error",
        "@typescript-eslint/no-unnecessary-type-assertion": "error",
        "@typescript-eslint/no-unnecessary-type-constraint": "error",
        "@typescript-eslint/no-unsafe-argument": "warn",
        "@typescript-eslint/no-unsafe-assignment": "error",
        "@typescript-eslint/no-unsafe-enum-comparison": "error",
        "@typescript-eslint/no-unsafe-return": "error",
        "@typescript-eslint/no-useless-empty-export": "error",
        "@typescript-eslint/no-var-requires": "error",
        "@typescript-eslint/non-nullable-type-assertion-style": "error",
        "@typescript-eslint/prefer-enum-initializers": "error",
        "@typescript-eslint/prefer-for-of": "error",
        "@typescript-eslint/prefer-function-type": "error",
        "@typescript-eslint/prefer-includes": "error",
        "@typescript-eslint/prefer-literal-enum-member": "error",
        "@typescript-eslint/prefer-namespace-keyword": "error",
        "@typescript-eslint/prefer-nullish-coalescing": ["error"],
        "@typescript-eslint/prefer-readonly": "error",
        "@typescript-eslint/prefer-reduce-type-parameter": "error",
        "@typescript-eslint/prefer-regexp-exec": "error",
        "@typescript-eslint/prefer-string-starts-ends-with": "error",
        "@typescript-eslint/prefer-ts-expect-error": "error",
        "@typescript-eslint/promise-function-async": "error",
        "@typescript-eslint/require-array-sort-compare": "error",
        "@typescript-eslint/restrict-plus-operands": "error",
        "@typescript-eslint/restrict-template-expressions": "error",
        "@typescript-eslint/sort-type-constituents": "error",
        "@typescript-eslint/switch-exhaustiveness-check": "error",
        "@typescript-eslint/unified-signatures": "error",

        /** typescript extension rules */
        "default-param-last": "off",
        "@typescript-eslint/default-param-last": "error",
        "dot-notation": "off",
        "@typescript-eslint/dot-notation": "error",
        "init-declarations": "off",
        "@typescript-eslint/init-declarations": "error",
        "no-array-constructor": "off",
        "@typescript-eslint/no-array-constructor": "error",
        "no-dupe-class-members": "off",
        "@typescript-eslint/no-dupe-class-members": "error",
        "no-empty-function": "off",
        "@typescript-eslint/no-empty-function": "error",
        "no-extra-semi": "off",
        "@typescript-eslint/no-extra-semi": "error",
        "no-implied-eval": "off",
        "@typescript-eslint/no-implied-eval": "error",
        "no-invalid-this": "off",
        "@typescript-eslint/no-invalid-this": "error",
        "no-loop-func": "off",
        "@typescript-eslint/no-loop-func": "error",
        "no-loss-of-precision": "off",
        "@typescript-eslint/no-loss-of-precision": "error",
        "no-magic-numbers": "off",
        "no-redeclare": "off",
        "@typescript-eslint/no-redeclare": "error",
        "no-restricted-imports": "off",
        "@typescript-eslint/no-restricted-imports": "error",
        "no-shadow": "off",
        "@typescript-eslint/no-shadow": "error",
        "no-throw-literal": "off",
        "@typescript-eslint/no-throw-literal": "error",
        "no-unused-expressions": "off",
        "@typescript-eslint/no-unused-expressions": "error",
        "no-unused-vars": "off",
        "no-underscore-dangle": "off", // Turn this off because we use @typescript-eslint/no-unused-vars
        "@typescript-eslint/no-unused-vars": [
          "error",
          {
            "argsIgnorePattern": "^_",
            "varsIgnorePattern": "^_",
            "caughtErrorsIgnorePattern": "^_"
          }
        ],
        "@typescript-eslint/no-use-before-define": "off",
        "no-useless-constructor": "off",
        "@typescript-eslint/no-useless-constructor": "error",
        "no-return-await": "off",
        "@typescript-eslint/return-await": "error",
        "require-await": "off",
        "@typescript-eslint/require-await": "error"
      }
    }
  ],
  "ignorePatterns": ["node_modules/", "dist/"]
}