WP_Query::is_category()
Method: Is the query for an existing category archive page?
Source: wp-includes/class-wp-query.php:4110
Method: Is the query for an existing category archive page?
Source: wp-includes/class-wp-query.php:4110
Method: Is the query for an existing single post?
Source: wp-includes/class-wp-query.php:4509
Method: Is the query for an existing tag archive page?
Source: wp-includes/class-wp-query.php:4149
Method: Is the query for an existing single post of any post type (post, attachment, page, custom post types)?
Source: wp-includes/class-wp-query.php:4563
Method: Is the query for an existing custom taxonomy archive page?
Source: wp-includes/class-wp-query.php:4198
Method: Is the query for a specific time?
Source: wp-includes/class-wp-query.php:4583
Method: Whether the current URL is within the comments popup window.
Source: wp-includes/class-wp-query.php:4240
Method: Is the query for a trackback endpoint call?
Source: wp-includes/class-wp-query.php:4594
Method: Is the query for an existing date archive?
Source: wp-includes/class-wp-query.php:4253
Method: Is the query for an existing year archive?
Source: wp-includes/class-wp-query.php:4605