hugo/docs/content/en/functions/strings/TrimRight.md

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strings.TrimRight	Returns a slice of a given string with all trailing characters contained in the cutset removed.	functions		docs parent functions	aliases returnType signatures string strings.TrimRight CUTSET STRING	strings.Chomp strings.Trim strings.TrimLeft strings.TrimPrefix strings.TrimRight strings.TrimSuffix	/functions/strings.trimright

Given the string "abba", trailing "a"'s can be removed a follows:

{{ strings.TrimRight "a" "abba" }} → "abb"

Numbers can be handled as well:

{{ strings.TrimRight 12 1221341221 }} → "122134"