mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-07 13:12:31 -05:00
37 lines
1.1 KiB
Markdown
37 lines
1.1 KiB
Markdown
---
|
|
title: intersect
|
|
linktitle: intersect
|
|
description: Returns the common elements of two arrays or slices, in the same order as the first array.
|
|
godocref:
|
|
date: 2017-02-01
|
|
publishdate: 2017-02-01
|
|
lastmod: 2017-02-01
|
|
categories: [functions]
|
|
menu:
|
|
docs:
|
|
parent: "functions"
|
|
keywords: [collections,intersect,union,complement,symdiff]
|
|
signature: ["intersect SET1 SET2"]
|
|
workson: []
|
|
hugoversion:
|
|
relatedfuncs: []
|
|
deprecated: false
|
|
aliases: []
|
|
---
|
|
An useful example is to use it as `AND` filters when combined with where:
|
|
|
|
## AND filter in where query
|
|
|
|
```
|
|
{{ $pages := where .Site.RegularPages "Type" "not in" (slice "page" "about") }}
|
|
{{ $pages := $pages | union (where .Site.RegularPages "Params.pinned" true) }}
|
|
{{ $pages := $pages | intersect (where .Site.RegularPages "Params.images" "!=" nil) }}
|
|
```
|
|
|
|
The above fetches regular pages not of `page` or `about` type unless they are pinned. And finally, we exclude all pages with no `images` set in Page params.
|
|
|
|
See [union](/functions/union) for `OR`.
|
|
|
|
|
|
[partials]: /templates/partials/
|
|
[single]: /templates/single-page-templates/
|