Simple check if form field has errors in Twig template

Question

In Twig template I check if a field has an error like this:

{% if form.points.get(\'errors\') is not empty %}

Is there any method like:

Answer 1

i have create a twig extension to handle this: my extension

public function hasError($string)
{
    if(strlen($string) > 4)
        return true;
    return false;
}

i use it like this in twig

{{ has_error(form_errors(form.username)) ? form_errors(form.username) : '' }}