.eslintrc.json

{
  "env": {
    "browser": true,
    "commonjs": true,
    "es2021": true
  },
  "extends": ["eslint:recommended"],
  "parserOptions": {
    "ecmaVersion": 12
  },
  "rules": {
    "arrow-body-style": ["warn", "as-needed"],
    "arrow-parens": "off",
    "block-spacing": "warn",
    "camelcase": "off",
    "class-methods-use-this": "off",
    "comma-dangle": [
      "warn",
      {
        "arrays": "always-multiline",
        "imports": "always-multiline",
        "exports": "always-multiline",
        "objects": "always-multiline",
        "functions": "only-multiline"
      }
    ],
    "dot-notation": "warn",
    "eol-last": "warn",
    "function-paren-newline": "off",
    "generator-star-spacing": "off",
    "global-require": "off",
    "max-len": "off",
    "newline-per-chained-call": ["warn", { "ignoreChainWithDepth": 5 }],
    "no-case-declarations": "warn",
    "no-mixed-spaces-and-tabs": ["warn", "smart-tabs"],
    "no-multi-spaces": [
      "warn",
      {
        "exceptions": {
          "VariableDeclarator": true,
          "Property": false
        }
      }
    ],
    "no-multiple-empty-lines": [
      "warn",
      {
        "max": 1,
        "maxEOF": 1,
        "maxBOF": 0
      }
    ],
    "no-nested-ternary": "warn",
    "no-param-reassign": ["warn", { "props": false }],
    "no-plusplus": "off",
    "no-restricted-globals": ["error", "fdescribe", "fit"],
    "no-restricted-syntax": ["error", "DebuggerStatement", "LabeledStatement", "WithStatement"],
    "no-return-assign": ["error", "except-parens"],
    "no-template-curly-in-string": "warn",
    "no-trailing-spaces": "warn",
    "no-underscore-dangle": "off",
    "no-useless-rename": [
      "error",
      {
        "ignoreDestructuring": true,
        "ignoreImport": false,
        "ignoreExport": false
      }
    ],
    "no-unused-vars": ["warn", { "vars": "all", "args": "after-used", "ignoreRestSiblings": false }],
    "object-curly-newline": "off",
    "object-shorthand": ["warn", "always"],
    "prefer-arrow-callback": ["error", { "allowNamedFunctions": true }],
    "prefer-const": "warn",
    "prefer-destructuring": "warn",
    "prefer-template": "warn",
    "prefer-promise-reject-errors": "off",
    "quotes": ["warn", "single", "avoid-escape"],
    "require-jsdoc": [
      "off",
      {
        "require": {
          "FunctionDeclaration": true,
          "MethodDefinition": false,
          "ClassDeclaration": false
        }
      }
    ],
    "semi": ["error", "never"],
    "sort-imports": [
      2,
      {
        "ignoreCase": false,
        "ignoreMemberSort": false,
        "ignoreDeclarationSort": true
      }
    ],
    "space-before-function-paren": [
      "warn",
      {
        "anonymous": "never",
        "named": "never",
        "asyncArrow": "always"
      }
    ],
    "space-in-parens": "warn",
    "spaced-comment": [
      "warn",
      "always",
      {
        "exceptions": ["-+"],
        "markers": ["eslint-disable", "eslint-disable-line", "eslint-disable-next-line", "eslint-enable"]
      }
    ]
  }
}