add_action( 'woocommerce_product_options_general_product_data', 'enable_virtual_option' );
function enable_virtual_option(){
?>
<script>
(function($){
$('input[name=_virtual]').prop('checked', true);
$('input[name=_downloadable]').prop('checked', true);
})(jQuery);
</script>
<?php
}$tag = "{$cond_before}{$before_handle}<script type='text/javascript' src='$src'></script>\n{$after_handle}{$cond_after}";$tag = "{$cond_before}{$before_handle}<script type='text/javascript' async src='$src'></script>\n{$after_handle}{$cond_after}";