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Removes duplicate items in the list.

Component Version macOS Windows Linux Server iOS SDK
List 4.4 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "QuickList.RemoveDuplicateItems"; ListRef { ; RemoveAll; ReturnNewList; CaseInsensitive } )   More


Parameter Description Example Flags
ListRef The reference to the list returned from QuickList.New function. $List
RemoveAll Available in MBS FileMaker Plugin 10.4 or newer.
If duplicate is found also remove the first occurrence. Set to 1 to enable or 0 to disable. Default is disabled.
1 Optional
ReturnNewList Pass 1 to return result as new QuickList.
This new list must be freed later using QuickList.Release function. Pass 0 (Default) to modify the list in the List1 parameter.
0 Optional
CaseInsensitive Available in MBS FileMaker Plugin 14.0 or newer.
Whether to perform comparison case insensitve.
By default we do case sensitive operations, which are faster.
Pass 1 for insensitve or 0 for sensitive.
0 Optional


Returns OK or error.


Removes duplicate items in the list.
Similar to UniqueValues function in FileMaker to find unique values.

See also

Release notes

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This function checks for a license.

Created 21st September 2014, last changed 14th December 2023

QuickList.Remove - QuickList.RemoveEmptyItems