hugo/docs/content/en/functions/in.md

title	linktitle	description	date	publishdate	lastmod	categories	menu	keywords	signature	workson	hugoversion	relatedfuncs	deprecated	aliases
in		Checks if an element is in an array or slice--or a substring in a string---and returns a boolean.	2017-02-01	2017-02-01	2017-02-01	functions	docs parent functions	strings	in SET ITEM				false

The elements supported are strings, integers and floats, although only float64 will match as expected.

In addition, in can also check if a substring exists in a string.

{{ if in .Params.tags "Git" }}Follow me on GitHub!{{ end }}

{{ if in "this string contains a substring" "substring" }}Substring found!{{ end }}