Brian Dunning's FileMaker Custom Functions

isValidZip ( zip )

used to determine if entered zip is a valid 5 or 9 digit zip code

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Kyle Williams   Kyle Williams - Show more from this author
Augusto Digital
https://www.youtube.com/channel/UCpJlB7cmVNMjbjgY96MEsng

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  Sample input:
isValidZip( "00501-2045" )
isValidZip( "00501" )
isValidZip( "00500" )
isValidZip( "1234-56789" )
isValidZip( "oo5o1-2o45" )
isValidZip( "A1234-5678" )
  Sample output:
9 //(true)
5 //(true)
0 //(false)
0 //(false)
0 //(false)
0 //(false)

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

This function is used to determine if the entered zip code is a valid 5 or 9 digit zip code

 

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