How to find the number of posts for a specific tag in wordpress?

Question

WordPress

Is there any function that returns the number of posts with a specific tag?
And then you need to count how many of these posts, but doing it through get_posts () is somehow too stupid, because it loads the system with unnecessary data

Answer 1

$wp_query = new WP_Query( array( 'tag' => 'bread,baking' ) );
echo $wp_query->found_posts;

bread,baking - tags