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Hugo makes a set of values available to the templates. Go templates are context based. The following are available in the context for the templates.
Page Variables
The following is a list of most of the accessible variables which can be defined for a piece of content. Many of these will be defined in the front matter, content or derived from file location.
.Title The title for the content.
.Content The content itself, defined below the front matter.
.Summary A generated summary of the content for easily showing a snippet in a summary view.
.Description The description for the content.
.Keywords The meta keywords for this content.
.Date The date the content is associated with.
.PublishDate The date the content is published on.
.Type The content type (e.g. post)
.Section The section this content belongs to
.Permalink The Permanent link for this page.
.RelPermalink The Relative permanent link for this page.
.LinkTitle Access when creating links to this content. Will use linktitle if set in front-matter, else title
.Taxonomies These will use the field name of the plural form of the index (see tags and categories above)
.RSSLink Link to the indexes' rss link
.TableOfContents The rendered table of contents for this content
.Prev Pointer to the previous content (based on pub date)
.Next Pointer to the following content (based on pub date)
.FuzzyWordCount The approximate number of words in the content.
.WordCount The number of words in the content.
.ReadingTime The estimated time it takes to read the content in minutes.
.Weight Assigned weight (in the front matter) to this content, used in sorting.
.IsNode Always false for pages.
.IsPage Always true for page.
.Site See site variables below
Page Params
Any other value defined in the front matter, including indexes will be made available under .Params.
Take for example I'm using tags and categories as my indexes. The following would be how I would access them:
.Params.tags
.Params.categories
All Params are only accessible using all lowercase characters
Node Variables
In Hugo a node is any page not rendered directly by a content file. This includes indexes, lists and the homepage.
.Title The title for the content.
.Date The date the content is published on.
.Permalink The Permanent link for this node
.Url The relative url for this node.
.RSSLink Link to the indexes' rss link
.Data The data specific to this type of node.
.IsNode Always true for nodes.
.IsPage Always false for nodes.
.Site See site variables below
Site Variables
Also available is .Site which has the following:
.Site.BaseUrl The base URL for the site as defined in the config.json file.
.Site.Taxonomies The indexes for the entire site.
.Site.LastChange The date of the last change of the most recent content.
.Site.Recent Array of all content ordered by Date, newest first.
.Site.Params A container holding the values from params in your site configuration file.