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Finds duplicate items in the list.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
List 10.5 Yes Yes Yes Yes Yes
MBS( "List.FindDuplicateItems"; List { ; NoReturnEnding } )   More


Parameter Description Example Flags
List The list to process. "Hello" ¶ "Hello" ¶ "World"
NoReturnEnding Pass 1 to have no extra newline character on the end of the returned list. Default is 0 to include one to easily concat lists. 1 Optional


Returns list or error.


Finds duplicate items in the list.
Returns list with all duplicate items, but only counts each one once.
Similar to List.RemoveDuplicateItems and see also QuickList.FindDuplicateItems.


Find duplicates

MBS( "List.FindDuplicateItems"; "1¶2¶3¶4¶1¶7¶7¶8¶1")

Example result:

See also

Blog Entries

Release notes

  • Version 10.5
    • Added List.FindDuplicateItems and QuickList.FindDuplicateItems functions.

Created 28th September 2020, last changed 28th September 2020

List.Deserialize   -   List.FindEquals

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MBS Xojo Plugins