--- title: intersect linktitle: intersect description: Returns the common elements of two arrays or slices. 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: ``` {{ $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/