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 FileMaker Pro Custom Functions

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DeduplicateList ( input ; output )

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  Average rating: 4.6  (7 votes)
  Discuss this Custom Function

Peter Roots, N/A
N/A

Removes duplicates from a return-delimited list of values

Sample Input:
DeduplicateList ( "apple¶pear¶apple¶orange" ; "" )
Sample Output:
apple¶pear¶orange


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

Removes duplicates from a return-delimited list of values, such as would be provided by FileMaker's List function. Not case-sensitive; retains the first instance of each value.

- input is the initial list;
- output is initially empty

For example,
DeduplicateList ( "Apple¶pear¶apple¶orange" ; "" ) =
"Apple¶pear¶orange"

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

Discuss:

How about case sensitive version ?

RemoveDuplicate( str )

Case ( ValueCount ( str ) < 2 ; str ; Let ( v1 = GetValue ( str ; 1 ) ; List ( v1 ; RemoveDuplicate ( Let ( s = Substitute ( ¶ & str & ¶ ; [ ¶ & v1 & ¶ ; ¶ ] ; [ ¶ & v1 & ¶ ; ¶ ] ) ; Middle ( s ; 2 ; Length ( s ) - 2 ) ) ) ) ) )

unin, japan
January 21, 2010 10:38pm

I am wondering if this CF will dedup a return separated list of NUMBERS vs text?

David Owen, Bloomfield, CT
February 01, 2010 8:15am

Yes it does. Just try it. :-)

Stefan Schutt, Finland
October 10, 2010 12:58pm

One thing to be aware of: If there are any blank values in the list to be de-duplicated, the function returns a ?. You need to remove blanks before deduplicating the list.

Darren Terry, San Jose, CA
January 25, 2011 11:41am

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