collections.Intersect

Returns a slice containing the common elements found in two given slices, in the same order as the first slice.

Syntax

collections.Intersect SLICE1 SLICE2

Returns

[]any

Alias

intersect

A 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 parameters.

See union for OR.

Last updated: February 8, 2026 : content: Improve descriptions and signatures for collections functions (573b8610f)

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