.eslintrc.json

{
  "root": true,
  "extends": "eslint:recommended",
  "parserOptions": {
    "ecmaVersion": 2020,
    "sourceType": "module"
  },
  "env": {
    "es2020": true
  },
  "rules": {
    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
    "comma-dangle": ["error", "always-multiline"],
    "comma-spacing": "error",
    "comma-style": "error",
    "curly": ["error", "multi-line", "consistent"],
    "dot-location": ["error", "property"],
    "handle-callback-err": "off",
    "indent": ["error", 4, { "SwitchCase": 1 }],
    "max-nested-callbacks": ["error", { "max": 4 }],
    "max-statements-per-line": ["error", { "max": 2 }],
    "no-console": "off",
    "no-empty-function": "error",
    "no-floating-decimal": "error",
    "no-inline-comments": "off",
    "no-lonely-if": "error",
    "no-multi-spaces": ["error", { "ignoreEOLComments": true }],
    "eol-last": ["error", "always"],
    "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": ["error", { "args": "after-used" }],
    "no-var": "error",
    "object-curly-spacing": ["error", "always"],
    "prefer-const": "error",
    "quotes": ["error", "double", { "allowTemplateLiterals": true }],
    "semi": ["error", "always"],
    "keyword-spacing": ["error", { "before": true, "after": true }],
    "space-before-blocks": "error",
    "space-before-function-paren": ["error", {
      "anonymous": "never",
      "named": "never",
      "asyncArrow": "always"
    }],
    "space-in-parens": "error",
    "space-infix-ops": "error",
    "space-unary-ops": "error",
    "spaced-comment": "error",
    "yoda": "error"
  }
}