Created: 2017.03.30
From Remove “Category:”, “Tag:”, “Author:” from the_archive_title
add_filter( 'get_the_archive_title', function ($title) {
if ( is_category() ) {
// Category_name
$title = single_cat_title( '', false );
} elseif ( is_tag() ) {
// Category_name/Tag_name
$category = get_the_category();
$title = single_tag_title( $category[0]->name . '/', false );
} elseif ( is_author() ) {
$title = '<span class="vcard">' . get_the_author() . '</span>';
}
return $title;
}