Hi, would anybody know what the file name must be for adding html code to a child theme. for example, must the file be custom.php or custom.js

function my_scripts_method() { wp_enqueue_script(       'custom-script',       get_stylesheet_directory_uri() . "/js/custom_script.js        array( 'query' ),'',true );           } add_action( 'wp_enqueue_scripts', 'my_custom_script.js' ); 

Ive tried putting this code in functions.php and header.php to call the javascript. doesn’t work

The countdown javascript animation is in a file named custom_script.js in a folder named js, which is in the child theme folder named wpbdemo. The animation also had css and html, but that is working I think, as the countdown template is showing, its just not doing any movement. So, I think its the javascript code not working. The css is in style.css file and the html is in footer.php.