Turn an array into a pipe-delimited string. Useful when passing an array of things into a parameter. Generally unnecessary though as most parameters can now accept a wide range of datatypes.
collections: - blog - news - wigs
{{ collection from="{collections|option_list}" }}
<statamic:collection :from="Statamic::modify($collections)->optionList()->fetch()"> </statamic:collection>
Can also be used by its alias, piped
.