check if field in metadata hugo

Hugo allows users to add front matter variables in yaml, toml, or json to their content files, which allow metadata to be attached to an instance of a content type. 1 Front matter captures data associated with the post and is a powerful tool for personalising Hugo sites. 2 Hugo also supports customizing the front matter variables in yaml, toml, or json, and the taxonomies> field name of the plural form of the index. 1