randomString ( _string ; _length )

Returns a random string from among the argument strings.

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Teruhiro Komaki - Show more from this author
frudens Inc.
https://frudens.jp

Sample input:

frd_randomString ( "abcdefghijklmnopqrstuvwxyz" ; 5 )

Sample output:

"tyhjv" or "dxmwm" or "mhtcx"

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

// https://www.briandunning.com/cf/2476

Let ( [
~string = GetAsText ( _string ) ;
~max = GetAsNumber ( _length ) ;
~invalid = If ( ValueCount ( ~string ) > 1 ; True ; False )
] ;

SetRecursion (

  While (

    [
      ~i = 0 ;
      ~text = "" ;
      ~result = ""
    ] ;

    not ( ~i >= ~max or ~invalid ) ;

    [
      ~i = ~i + 1 ;
      ~text = Middle ( ~string ; frd_randomNumber ( Length ( ~string ) ) ; 1 ) ;
      ~result = ~result & ~text
    ] ;

    ~result

  ) /*While*/

  ; ~max

) /*SetRecursion*/

) /*Let*/

Returns a random string from among the argument strings.

Invalid if the string contains a newline.

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

randomString ( _string ; _length )

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