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---
title: collections.Intersect
linkTitle: intersect
description: Returns the common elements of two arrays or slices, in the same order as the first array.
categories: [functions]
keywords: []
menu:
docs:
parent: functions
function:
aliases: [intersect]
returnType: any
signatures: [collections.Intersect SET1 SET2]
relatedFunctions:
- collections.Complement
- collections.Intersect
- collections.SymDiff
- collections.Union
aliases: [/functions/intersect]
---
A useful example is to use it as `AND` filters when combined with where:
## AND filter in where query
```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/
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