hugo/content/en/content-management/toc.md
Bjørn Erik Pedersen 87de22d746 Squashed 'docs/' changes from 85befbb4d..c43daf45f
c43daf45f Update build-options.md
3ebbfedd4 Build options: Improve readability
5091bf6a0 Improve safeHTMLAttr explanation
b64cbce2e Fix description of collections.Apply
6ea264b9c netlify: Hugo 0.115.4
b42e7c542 Revert "config: Remove disableLiveReload"
35ce2290e Remove excess spaces in configuration docs
2edf761de Update listed titleCaseStyle default value
887f6fb97 config: Remove disableLiveReload
c9f49fb26 Fix typo
37d8569ac Remove tools associated with Atom
871d11b72 Fix URL in postprocess docs
bbb17d29f Update GitLab workflow
bc53ea5ce Use sentence-style capitalization for headings
7ca578786 netlify: Hugo 0.115.3
c5e010bd0 Merge branch 'tempv0.115.3'
c885604bf Remove starter kits page
4c0fe269e Update mention of Netlify CMS to Decap CMS
05067175c Consistently use file name instead of filename
763dd6404 Improve multilingual config example and descriptions
e5aa61ec5 Use lowercase when referring to front matter (#2132)
7ba3d0c72 docs: Refresh docs.json
de8bddedf Update description of timeout configuration value
e1245d9f8 netify: Hugo 0.115.2
153a36bdf Merge branch 'tempv0.115.2'
707cec754 Fix typo in figure example in shortcodes.md
128cbe1e5 Improve taxonomy template examples
4e743ec36 Improve highlight function example
f96fa6805 transpile sass: Fixes typo
e4a8a21f7 Compile Sass to CSS, not SCSS
c1538bd00 docs: Regenerate CLI docs
bd4e33436 Add titleCaseStyle none and firstupper
6ff93d478 Update quick-start.md
5c6653cb1 Update build config examples and explanation
1458d9a43 Remove the `url` parameter
6a1e92044 netlify: Hugo 0.115.1
a9d5d6f2f Merge branch 'tempv0.115.1'
4c4882384 docs: Regen docs helper
d1aa1c1f5 Add link to PowerShell vs Windows PowerShell documentation
6e3b70c21 Fix link to Git installation instructions
4f8a9ca38 Clarify resources.Copy arguments
ee86dd121 Update theme
dc7c305cf Update theme
60c23920b Clarify caching for resources.FromString (#2120)
5bf2fef6d netlify: Hugo 0.115.0
46bde87c5 Merge branch 'tempv0.115.0'
42cc48c16 Specify target path caching for resources.ExecuteAsTemplate (#2027)
a54bf4cd0 Correct the sample code of mermaid (#2119)
8c49b06fc docs: Update permalinks documentation
a4818d99b Page bundles: link to info about single vs. list page templates (#2116)
3fc7744d7 snap: Document removable media access
dbd08f58a Update theme
df5b88633 netlify: Hugo 0.114.1
6b859834a Fix typo
9ec92cf68 Improve Dart Sass example for Netlify
2d294ece9 Add Dart Sass installation and usage documentation
4c6b77d6c Fix placement of curly braces
897812a50 Update template-debugging.md to include a jsonify example
22bca519b Update GitHub Pages hosting instructions (#2109)
a964d93ce Document math functions new in v0.114.0 (#2108)
9f4cb040e netlify: Hugo 0.114.0
55b4d9221 Merge branch 'tempv0.114.0'
93c4dcf93 docs: Regen docshelper
96f03c77f docs: Regen CLI docs
8e22a228a Clarify resource media type variables (#2106)
2652da8d4 Update transform.Unmarshal.md (#2105)
92657177a Update theme
4601c1d65 Update theme
a216f3145 Merge commit '3c1deaf201a35de08d23cc58f8f03682cace3349'
eed8794f5 cache: Set default cache path based on $USER

git-subtree-dir: docs
git-subtree-split: c43daf45fdc36c254f4274a0815ea62d4d8c37e0
2023-07-29 11:15:54 +02:00

116 lines
5.5 KiB
Markdown

---
title: Table of contents
description: Hugo can automatically parse Markdown content and create a Table of Contents you can use in your templates.
categories: [content management]
keywords: [table of contents, toc]
menu:
docs:
parent: content-management
weight: 210
toc: true
weight: 210
aliases: [/extras/toc/]
---
{{% note %}}
Previously, there was no out-of-the-box way to specify which heading levels you want the TOC to render. [See the related GitHub discussion (#1778)](https://github.com/gohugoio/hugo/issues/1778). As such, the resulting `<nav id="TableOfContents"><ul></ul></nav>` was going to start at `<h1>` when pulling from `{{ .Content }}`.
Hugo [v0.60.0](https://github.com/gohugoio/hugo/releases/tag/v0.60.0) made a switch to [Goldmark](https://github.com/yuin/goldmark/) as the default library for Markdown which has improved and configurable implementation of TOC. Take a look at [how to configure TOC](/getting-started/configuration-markup/#table-of-contents) for Goldmark renderer.
{{% /note %}}
## Usage
Create your Markdown the way you normally would with the appropriate headings. Here is some example content:
```md
<!-- Your front matter up here -->
## Introduction
One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin.
## My Heading
He lay on his armour-like back, and if he lifted his head a little he could see his brown belly, slightly domed and divided by arches into stiff sections. The bedding was hardly able to cover it and seemed ready to slide off any moment.
### My Subheading
A collection of textile samples lay spread out on the table - Samsa was a travelling salesman - and above it there hung a picture that he had recently cut out of an illustrated magazine and housed in a nice, gilded frame. It showed a lady fitted out with a fur hat and fur boa who sat upright, raising a heavy fur muff that covered the whole of her lower arm towards the viewer. Gregor then turned to look out the window at the dull weather. Drops
```
Hugo will take this Markdown and create a table of contents from `## Introduction`, `## My Heading`, and `### My Subheading` and then store it in the [page variable][pagevars]`.TableOfContents`.
The built-in `.TableOfContents` variables outputs a `<nav id="TableOfContents">` element with a child `<ul>`, whose child `<li>` elements begin with appropriate HTML headings. See [the available settings](/getting-started/configuration-markup/#table-of-contents) to configure what heading levels you want to include in TOC.
## Template example: basic TOC
The following is an example of a very basic [single page template]:
{{< code file="layout/_default/single.html" >}}
{{ define "main" }}
<main>
<article>
<header>
<h1>{{ .Title }}</h1>
</header>
{{ .Content }}
</article>
<aside>
{{ .TableOfContents }}
</aside>
</main>
{{ end }}
{{< /code >}}
## Template example: TOC partial
The following is a [partial template][partials] that adds slightly more logic for page-level control over your table of contents. It assumes you are using a `toc` field in your content's [front matter] that, unless specifically set to `false`, will add a TOC to any page with a `.WordCount` (see [Page Variables][pagevars]) greater than 400. This example also demonstrates how to use [conditionals] in your templating:
{{< code file="layouts/partials/toc.html" >}}
{{ if and (gt .WordCount 400 ) (.Params.toc) }}
<aside>
<header>
<h2>{{ .Title }}</h2>
</header>
{{ .TableOfContents }}
</aside>
{{ end }}
{{< /code >}}
{{% note %}}
With the preceding example, even pages with > 400 words *and* `toc` not set to `false` will not render a table of contents if there are no headings in the page for the `{{ .TableOfContents }}` variable to pull from.
{{% /note %}}
## Usage with AsciiDoc
Hugo supports table of contents with AsciiDoc content format.
In the header of your content file, specify the AsciiDoc TOC directives necessary to ensure that the table of contents is generated. Hugo will use the generated TOC to populate the page variable `.TableOfContents` in the same way as described for Markdown. See example below:
```asciidoc
// <!-- Your front matter up here -->
:toc:
// Set toclevels to be at least your hugo [markup.tableOfContents.endLevel] configuration key
:toclevels: 4
== Introduction
One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin.
== My Heading
He lay on his armour-like back, and if he lifted his head a little he could see his brown belly, slightly domed and divided by arches into stiff sections. The bedding was hardly able to cover it and seemed ready to slide off any moment.
=== My Subheading
A collection of textile samples lay spread out on the table - Samsa was a travelling salesman - and above it there hung a picture that he had recently cut out of an illustrated magazine and housed in a nice, gilded frame. It showed a lady fitted out with a fur hat and fur boa who sat upright, raising a heavy fur muff that covered the whole of her lower arm towards the viewer. Gregor then turned to look out the window at the dull weather. Drops
```
Hugo will take this AsciiDoc and create a table of contents store it in the page variable `.TableOfContents`, in the same as described for Markdown.
[conditionals]: /templates/introduction/#conditionals
[front matter]: /content-management/front-matter/
[pagevars]: /variables/page/
[partials]: /templates/partials/
[single page template]: /templates/single-page-templates/