.eslintrc

{
  "parserOptions": {"ecmaVersion": "latest", "sourceType": "module"},
  "env": {"es2020": true},
  "globals": {
    "console": "readonly",
    "URL": "readonly",
    "URLSearchParams": "readonly",
    "fetch": "readonly",
    "Request": "readonly",
    "Response": "readonly",
    "Headers": "readonly",
    "AbortController": "readonly",
    "AbortSignal": "readonly",
    "Intl": "readonly",
    "setTimeout": "readonly",
    "clearTimeout": "readonly",
    "TextDecoder": "readonly",
    "TextEncoder": "readonly",
    "ReadableStream": "readonly",
    "performance": "readonly",
    "crypto": "readonly",
  },
  "rules": {
    "no-restricted-globals": ["error",
      // window (browser)
      "alert", "blur", "confirm", "event", "find", "focus", "history",
      "length", "location", "name", "navigator", "open", "parent", "print",
      "prompt", "scroll", "self", "status", "stop", "top",
      // global (node)
      "root",
      /* other */
      "test",
      /* These global functions are broken */
      "isNaN", "isFinite",
    ],
    "semi": ["error", "never"],
    "eqeqeq": ["error", "always", {"null": "never"}],
    "no-unused-vars": ["error", {"argsIgnorePattern": "^_", "varsIgnorePattern": "^_"}],

    /* Copy of "eslint:recommended". */
    "consistent-return": "error",
    "constructor-super": "error",
    "for-direction": "error",
    "getter-return": "error",
    "no-async-promise-executor": "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",
    "no-control-regex": "error",
    "no-debugger": "error",
    "no-delete-var": "error",
    "no-dupe-args": "error",
    "no-dupe-class-members": "error",
    "no-dupe-else-if": "error",
    "no-dupe-keys": "error",
    "no-duplicate-case": "error",
    // "no-empty": "error",
    "no-empty-character-class": "error",
    "no-empty-pattern": "error",
    "no-ex-assign": "error",
    "no-extra-boolean-cast": "error",
    "no-extra-semi": "error",
    "no-fallthrough": "error",
    "no-func-assign": "error",
    "no-global-assign": "error",
    "no-import-assign": "error",
    "no-inner-declarations": "error",
    "no-invalid-regexp": "error",
    "no-irregular-whitespace": "error",
    "no-misleading-character-class": "error",
    "no-mixed-spaces-and-tabs": "error",
    "no-new-symbol": "error",
    "no-obj-calls": "error",
    "no-octal": "error",
    "no-prototype-builtins": "error",
    "no-redeclare": "error",
    "no-regex-spaces": "error",
    "no-self-assign": "error",
    "no-setter-return": "error",
    "no-shadow-restricted-names": "error",
    "no-sparse-arrays": "error",
    "no-this-before-super": "error",
    "no-undef": "error",
    "no-unexpected-multiline": "error",
    "no-unreachable": "error",
    "no-unsafe-finally": "error",
    "no-unsafe-negation": "error",
    "no-unused-labels": "error",
    // "no-unused-vars": "error",
    "no-useless-catch": "error",
    "no-useless-escape": "error",
    "no-with": "error",
    // "require-yield": "error",
    "use-isnan": "error",
    "valid-typeof": "error",
  },
}