symfony render script

base.html.twig

{% block javascripts %}
    <script>
        {{ render_scripts() }}
    </script>
{% endblock %}

form_theme_layout.html.twig

{% block form_block_widget %}
    {{ add_script("console.log('this is the script');") }}
{% endblock %}

Javascript.php

<?php
// this is twig filter
namespace App\Twig\Filters;

use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;

class Javascript extends AbstractExtension
{
    private array $scripts = [];

    public function getFunctions()
    {
        return [
            new TwigFunction('add_script', [$this, 'add_script']),
            new TwigFunction('render_scripts', [$this, 'renderScripts'], ['is_safe' => ['html']]),
        ];
    }

    public function add_script(string $script): void
    {
        $this->scripts[] = $script;
    }

    public function renderScripts()
    {
        $output = '';

        if (empty($this->scripts)) {
            return $output;
        }

        foreach ($this->scripts as $script) {
            $output .= $script;
        }

        return $output;
    }
}