Shortcode doesnt render checkbox

Hi,

I have a very strange effect in my custom shortcode.
I want to build an accordion on different content pages via shortcode. But I can’t execute the js multiple times, just one time on initial load.

I can’t create the accordion via css, because my input fields are NOT in the DOM. So it can’t be an css problem.

This is how I add the shortcode-accordion

function add_accordion($atts){
    $a = shortcode_atts( array(
          'id' => '',
          'class' => ''
       ), $atts );

        ob_start();

        wp_enqueue_script( "accordionjs" );

        set_query_var( 'post_id', absint( $a['id']) );
        set_query_var( 'class',  $a['class'] );

       get_template_part('template-parts/accordion');

        return ob_get_clean();
}

add_shortcode( 'accordion', 'add_accordion' );

In my accordion.php I am not able to render a simple checkbox like this:
<input type="checkbox" name="chk1" id="chk1" />

Where are my input field or the script tags for javascript?
I am using AngularJS with the current WordPress-Version.

Do you know this problem?