Methods related to categories and tags. As of WordPress 3.4, clients should prefer methods from the Taxonomies component.
Retrieve list of categories.
As of WordPress 3.4, it is preferable to use the wp.getTerms method, with category as the taxonomy_name parameter.
Retrieve list of categories that start with a given string.
Added in WordPress 2.2.
As of WordPress 3.4, it is preferable to use the wp.getTerms method, with category as the taxonomy_name parameter and the category prefix as the search parameter.
Create a category.
Added in WordPress 2.2.
As of WordPress 3.4, it is preferable to use the wp.newTerm method, with category as the taxonomy_name parameter.
Delete an existing category.
Added in WordPress 2.5.
As of WordPress 3.4, it is preferable to use the wp.deleteTerm method, with category as the taxonomy_name parameter.
Retrieve list of all tags.
Added in WordPress 2.7.
As of WordPress 3.4, it is preferable to use the wp.getTerms method, with post_tag as the taxonomy_name parameter.