.eslintrc.json

{
    "extends": "eslint:recommended",
    "env": {
      "node": true,
      "es6": true
    },
    "parserOptions": {
      "ecmaVersion": 2021,
      "sourceType": "module"
    },
    "rules": {
      "arrow-body-style": 0,
      "arrow-spacing": "error",
      "block-spacing": "error",
      "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
      "comma-spacing": "error",
      "comma-style": "error",
      "curly": ["error", "multi-or-nest"],
      "dot-location": ["error", "property"],
      "eol-last": "warn",
      "handle-callback-err": "off",
      "indent": ["error", 4],
      "key-spacing": [
        "error", {
          "beforeColon": false,
          "afterColon": true,
          "mode": "strict"
        }
      ],
      "keyword-spacing": [
        "error", {
            "before": true,
            "after": true
        }
      ],
      "lines-between-class-members": ["error", "always"],
      "max-statements-per-line": ["error", { "max": 2 }],
      "no-console": "off",
      "no-duplicate-imports": "error",
      "no-floating-decimal": "error",
      "no-lonely-if": "error",
      "no-multi-spaces": "error",
      "no-multiple-empty-lines": [
        "error",
        { "max": 2, "maxEOF": 1, "maxBOF": 0 }
      ],
      "no-shadow": ["error", { "allow": ["err", "resolve", "reject"] }],
      "no-trailing-spaces": ["error"],
      "no-unused-vars": "warn",
      "no-useless-return": "error",
      "no-var": "error",
      "no-whitespace-before-property": "error",
      "object-curly-spacing": ["error", "always"],
      "padded-blocks": [
        "error", {
            "blocks": "never",
            "classes": "always"
        }
      ],
      "padding-line-between-statements": [
        "error",
        { "blankLine": "always", "prev": "function", "next": "*" },
        { "blankLine": "always", "prev": "*", "next": "function" }
      ],
      "prefer-const": "error",
      "quotes": ["error", "single"],
      "semi": ["error", "always"],
      "space-before-blocks": "error",
      "space-before-function-paren": [
        "error", {
          "anonymous": "never",
          "named": "never",
          "asyncArrow": "never"
        }
      ],
      "space-in-parens": "error",
      "space-infix-ops": "error",
      "space-unary-ops": "error",
      "spaced-comment": "error",
      "switch-colon-spacing": "error",
      "yoda": "error"
    }
  }