Uncaught ReferenceError: jQuery is not defined in wordpress custom script

My jquery file is not working in WordPress.

The error is here:

My js code:

(function($) {
    $(document).ready(function(){
    $('#read_more').click(function() {
    $('.display_none').show().animate({'transition': '2s'});
   });
  });
})( jQuery );

I have an added custom-script.js file in functions.php like this:

function aristo_css_js(){
  wp_enqueue_script('myjs', get_template_directory_uri().'/assets/js/custom-script.js');
  wp_enqueue_script('myjs');
}
add_action('wp_enqueue_scripts','aristo_css_js');

What is the main problem for this was not working? But if I added custom script code before body tag it’s working. ?

Answer

I solve my own question by add jquery file before my custom-script

wp_enqueue_script('jquery-main', get_template_directory_uri().'/assets/js/jquery-3.3.1.min.js');
wp_enqueue_script('myjs', get_template_directory_uri().'/assets/js/custom-script.js');