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JavaScript fn.substringBefore

fn:substring-before

fn:substring-before(
   $input as xs:string?,
   $before as xs:string?,
   [$collation as xs:string]
) as xs:string?

Summary

Returns the substring created by taking all of the input characters that occur before the specified $before characters.

Parameters
input The string from which to create the substring.
before The string before which the substring is created.
collation The optional name of a valid collation URI. For information on the collation URI syntax, see the Search Developer's Guide.

Example

fn:substring-before("abcdef", "def")

=> abc

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