.eslintrc.json

{
    "env": {
        "browser": true,
        "es2021": true
    },
    "extends": "eslint:recommended",
    "parserOptions": {
        "ecmaVersion": 2021
    },
    "rules": {
        // Possible Problems
		"array-callback-return": "warn",
		"no-await-in-loop": "warn",
		"no-debugger": "warn",
		"no-duplicate-imports": "warn",
		"no-fallthrough": ["warn", { "commentPattern": "break[\\s\\w]*omitted" }],
		"no-inner-declarations": "warn",
		"no-loss-of-precision": "warn",
		"no-promise-executor-return": "warn",
		"no-self-assign": "warn",
		"no-self-compare": "warn",
		"no-sparse-arrays": "warn",
		"no-template-curly-in-string": "warn",
		"no-unexpected-multiline": "warn",
		"no-unmodified-loop-condition": "warn",
		"no-unreachable": "warn",
		"no-unreachable-loop": "warn",
		"no-unused-vars": "warn",
		"no-use-before-define": [ "error", { "functions": false }],
		"require-atomic-updates": "warn",

		// Suggestions
		"accessor-pairs": "warn",
		"consistent-return": "warn",
		"curly": ["warn", "multi-line"],
		"default-param-last": "warn",
		"dot-notation": "warn",
		"grouped-accessor-pairs": "warn",
		"guard-for-in": "warn",
		"no-alert": "warn",
		"no-bitwise": "warn",
		"no-caller": "error",
		"no-confusing-arrow": "warn",
		"no-console": [ "warn", { "allow": [ "error", "warn", "info", "table", "time", "timeEnd", "debug" ]}],
		"no-empty": "warn",
		"no-empty-function": "warn",
		"no-eq-null": "warn",
		"no-eval": "error",
		"no-extend-native": "warn",
		"no-extra-bind": "warn",
		"no-extra-boolean-cast": "warn",
		"no-extra-label": "warn",
		"no-extra-semi": "warn",
		"no-floating-decimal": "warn",
		"no-implicit-globals": "warn",
		"no-implied-eval": "error",
		"no-invalid-this": "warn",
		"no-iterator": "error",
		"no-label-var": "error",
		"no-lone-blocks": "warn",
		"no-lonely-if": "warn",
		"no-loop-func": "warn",
		"no-mixed-operators": "warn",
		"no-nested-ternary": "warn",
		"no-new-func": "error",
		"no-new-wrappers": "warn",
		"no-octal-escape": "error",
		"no-param-reassign": "off",
		"no-proto": "error",
		"no-regex-spaces": "warn",
		"no-return-assign": "warn",
		"no-return-await": "warn",
		"no-script-url": "error",
		"no-sequences": "warn",
		"no-shadow": "warn",
		"no-throw-literal": "warn",
		"no-unused-expressions": "warn",
		"no-useless-call": "warn",
		"no-useless-computed-key": "warn",
		"no-useless-concat": "warn",
		"no-var": "error",
		"no-void": "error",
		"one-var-declaration-per-line": "warn",
		"prefer-promise-reject-errors": "warn",
		"radix": ["error", "as-needed"],
		"require-await": "warn",
		"strict": "warn",

		// Layout & Formatting
		"indent": [ "warn", "tab", { "SwitchCase": 1 } ],
		"no-multi-spaces": "warn",
		"semi": "warn",
		"unicode-bom": "error",
		"wrap-iife": [ "warn", "any" ]
    }
}