.eslintrc.json

{
    "env": {
        "browser": true,
        "es2021": true
    },
    "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaVersion": 12,
        "sourceType": "module"
    },
    "plugins": ["@typescript-eslint", "unused-imports", "simple-import-sort"],
    "rules": {
        // "@typescript-eslint/no-use-before-define": [ "warn", { "functions": false, "classes": false, "variables": true } ],
        // auto-fixable stuff for formatter:
        "no-unused-expressions": "warn",
        "consistent-return": "warn",
        "no-useless-return": "warn",
        "@typescript-eslint/ban-ts-comment": "off",
        "@typescript-eslint/no-empty-function": "off",
        "no-debugger": "warn",
        "eqeqeq": [
            "warn",
            "always",
            {
                "null": "ignore"
            }
        ],
        // "no-extra-parens": "warn",
        // "@typescript-eslint/no-extra-parens": "warn",
        // "@typescript-eslint/no-unused-vars": [ "warn", { "argsIgnorePattern": "^_", "varsIgnorePattern": "^h$|^_" } ],
        // for import organizing:
        // "sort-imports": [
        //     "warn"
        // ],
        "@typescript-eslint/consistent-type-imports": [
            "warn",
            {
                "prefer": "type-imports"
            }
        ],
        "@typescript-eslint/no-unused-vars": "off",
        "unused-imports/no-unused-imports": "warn",
        "unused-imports/no-unused-vars": [
            "warn",
            {
                "vars": "all",
                "varsIgnorePattern": "^h$|^_",
                "args": "after-used",
                "argsIgnorePattern": "^_"
            }
        ],
        "simple-import-sort/imports": "error",
        // "simple-import-sort/exports": "error",
        "@typescript-eslint/await-thenable": "error",
        "@typescript-eslint/require-await": "error",
        "@typescript-eslint/no-floating-promises": "error"
    }
}