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RemoveValue ( listOfValues ; value )

Speedily (and with no recursion or cleanup of empty values) remove all instances of a value from a list.

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Debi Fuchs - Show more from this author Aptworks Consulting http://www.aptworks.com

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/* CUSTOM FUNCTION: RemoveValue(listOfValues; value) by Debi Fuchs of Aptworks Consulting, debi@aptworks.com Speedily (and with no recursion or cleanup of empty values) remove all instances of a value from a list. (For cleanup try custom function CullNulls) e.g. RemoveValue("¶9¶2¶4¶8¶8¶¶7¶¶8¶9¶¶"; "8") -> "¶9¶2¶4¶¶7¶¶9¶¶" LAST MODIFIED: 28-AUG-2018 by Debi Fuchs of Aptworks Consulting */ Let( s = "##*aaa*##"; //very unlikely string Case( //Check if unlikely string rears its head Position( listOfValues; s; 0; 1 ); //If so, simulate an out-of-range error. Evaluate( "Factorial( -1 )" ); //Check if value itself contains a paragraph return Position( value; ¶; 0; 1 ); //If so, simulate an out-of-range error. Evaluate( "Factorial( -1 )" ); // Otherwise, proceed to get rid of nulls Substitute( s & listOfValues & s; [ "¶"; s & ¶ & s ]; [ s & value & s & ¶; "" ]; [ ¶ & s & value & s; "" ]; [ s & value & s; "" ]; [ s; "" ] ) ) ) Click to copy

Speedily (and with no recursion or cleanup of empty values) remove all instances of a value from a list. (For cleanup try custom function CullNulls).

 

Comments

		Debi Fuchs, Aptworks Consulting Aug 28, 2018
fixed a bug which caused the function not to work on single-value lists

		Dan Shockley Feb 8, 2019
Very useful! Have you considered using Get ( UUID ) for your "very unlikely string" to be safer?

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