class dom_manager {
    static is_element(target) {
        return target instanceof HTMLElement;
    }

    static validate_element(target) {
        if (!self.is_element(target)) {
            throw "Parameter must be HTML Element.";
        }
    }
}

class type_manager {
    static is_function(target) {
        return typeof(target) === 'function';
    }

    static is_string(target) {
        return String(target) === target;
    }

    static is_array(target) {
        return target instanceof Array;
    }
}

export { dom_manager, type_manager };