blob: 8bc60f8e1e8e6ad8f8b974aed8ddd676f3b04559 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
---
title: collections.Intersect
description: Returns the common elements of two arrays or slices, in the same order as the first array.
categories: []
keywords: []
action:
aliases: [intersect]
related:
- functions/collections/Complement
- functions/collections/SymDiff
- functions/collections/Union
returnType: any
signatures: [collections.Intersect SET1 SET2]
aliases: [/functions/intersect]
---
A useful example is to use it as `AND` filters when combined with where:
```go-html-template
{{ $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 parameters.
See [union](/functions/collections/union) for `OR`.
[partials]: /templates/partials/
[single]: /templates/single-page-templates/
|
