hugoDocs/content/en/render-hooks/headings.md

title	linkTitle	description	categories	keywords	menu	weight	toc
Heading render hooks	Headings	Create a heading render hook to override the rendering of Markdown headings to HTML.	render hooks		docs parent weight render-hooks 40	40	true

Context

Heading render hook templates receive the following context:

Anchor

(string) The id attribute of the heading element.

Attributes

(map) The Markdown attributes, available if you configure your site as follows:

{{< code-toggle file=hugo >}} [markup.goldmark.parser.attribute] title = true {{< /code-toggle >}}

Level

(int) The heading level, 1 through 6.

Page

(page) A reference to the page containing the heading.

PlainText

(string) The heading text as plain text.

Text

(string) The heading text.

Examples

In its default configuration, Hugo renders Markdown headings according to the CommonMark specification with the addition of automatic id attributes. To create a render hook that does the same thing:

{{< code file=layouts/_default/_markup/render-heading.html copy=true >}} <h{{ .Level }} id="{{ .Anchor }}"> {{- .Text | safeHTML -}} </h{{ .Level }}> {{< /code >}}

To add an anchor link to the right of each heading:

{{< code file=layouts/_default/_markup/render-heading.html copy=true >}} <h{{ .Level }} id="{{ .Anchor }}"> {{ .Text | safeHTML }} # </h{{ .Level }}> {{< /code >}}