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ef02e34e Correct the mmark example frontmatter parameter 6e91e900 SectionPagesMenu > sectionPagesMenu 1a0db1a6 Adjust sectionPagesMenu f9f87d9d Fix extension's missing period. 7062ae07 Remove Press and Articles page 771f2b38 Remove outdated and redudant content file for release notes 64cf47c3 Remove outdated note in docs contribution guide bdb11b89 Fix typo 8324af70 Fixes broken link on Roadmap d93f0992 functions: Add all missing binary comparison operators fb7ae80a Fix typo in usage.md fbdae08b Fix typo in content-management/taxonomies.md 66fab8d2 Make <title> less stuttery b3cd4c22 Remove old temp release notes 5589ba96 Fix typos in templates/lists.md af3a0807 http > HTTP b2af90ae Remove formatting in description of blog article 6e2e60a9 Add blog article about Netlify files 0bb6f2f2 Use title in archetype file 7b2490ff Get the Archetypes up to new spec f401d69b Load CSS and JS via HTTP/2 server push 4aef4944 Adjust titles 362acdb2 Fix typo in quickstart c2440560 Remove inline icons from installation guide d2edcbc3 Revert "Fix links to Disqus template documentation" 622f49cf Add a full commands section at the quick start end 752f065b Fix server command in README 93e08e19 Fix links to Disqus template documentation 5e0cfaa9 Adjust Linux install d51397c2 Fix broken link in Quick Start 1fb39846 Add /quickstart alias to quickstart 7440616b Add new and simpler quickstart b3ec6986 Let page title correspond to function name replaceRE b44499c9 Add YouTube tutorial about taxonomies 88b9eb0e Add RSS templates example 6c0bde3f Update slice.md 6c212ea6 Reorder to match the following content order d2122992 Complete "content" spelling under theme components e4824eb3 Fix the output shortcode and its usage 0adfc945 Add archetypes YouTube video 638e9d9b Fix double "your" typo in taxonomies.md git-subtree-dir: docs git-subtree-split: ef02e34eaf296c3f94b4446b3c3347771e786057
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| title | description | qref | godocref | date | publishdate | lastmod | categories | menu | toc | signature | workson | hugoversion | relatedfuncs | deprecated | draft | aliases | needsexamples | |||||||
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| default | Allows setting a default value that can be returned if a first value is not set. | Returns a default value if a value is not set when checked. | 2017-02-01 | 2017-02-01 | 2017-02-01 |
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false | false |
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false |
default checks whether a given value is set and returns a default value if it is not. Set in this context means different things depending on date type:
- non-zero for numeric types and times
- non-zero length for strings, arrays, slices, and maps
- any boolean or struct value
- non-nil for any other types
default function examples reference the following content page:
{{< code file="content/posts/default-function-example.md" >}}
title: Sane Defaults seo_title: date: 2017-02-18 font: oldparam: The default function helps make your templating DRYer. newparam:
{{< /code >}}
default can be written in more than one way:
{{ index .Params "font" | default "Roboto" }}
{{ default "Roboto" (index .Params "font") }}
Both of the above default function calls return Roboto.
A default value, however, does not need to be hard coded like the previous example. The default value can be a variable or pulled directly from the front matter using dot notation:
{{< code file="variable-as-default-value.html" nocopy="true" >}} {{$old := .Params.oldparam }}
{{ .Params.newparam | default $old }}
{{< /code >}}Which would return:
<p>The default function helps make your templating DRYer.</p>
And then using dot notation
{{< code file="dot-notation-default-value.html" >}}
{{< /code >}}Which would return
{{< output file="dot-notation-default-return-value.html" >}}
{{< /output >}}The following have equivalent return values but are far less terse. This demonstrates the utility of default:
Using if:
{{< code file="if-instead-of-default.html" nocopy="true" >}}
=> Sane Defaults {{< /code >}}Using with:
{{< code file="with-instead-of-default.html" nocopy="true" >}}
=> Sane Defaults {{< /code >}}