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Convert attribute values into an array

  • January 16, 2026
  • 2 replies
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fmeuser_gc
Contributor
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I’m trying to convert those attribute values whichever has comma into an array.

Attribute A has values - "ABC" and "ABC","DEF" and "ABC","DEF","GHI".

Desired output -

“ABC”

["ABC", "DEF"]

["ABC", "DEF",”GHI”]

Any inputs are appreciated. Thanks very much!

Tagging ​@danilo_fme , ​@david_r 

Best answer by daveatsafe

Hi ​@fmeuser_gc,

Please use a Tester to test if Attribute A contains a comma. Route the Passed output to a StringConcatenator to add the square brackets to the beginning and end of the attribute value.

You could also do the same operation using a conditional operation in an AttributeManager:

 

    2 replies

    daveatsafe
    Safer
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    • daveatsafeSafer
    • Safer
    • Best Answer
    • January 16, 2026

    Hi ​@fmeuser_gc,

    Please use a Tester to test if Attribute A contains a comma. Route the Passed output to a StringConcatenator to add the square brackets to the beginning and end of the attribute value.

    You could also do the same operation using a conditional operation in an AttributeManager:

     

      hkingsbury
      Celebrity
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      • hkingsburyCelebrity
      • Celebrity
      • January 18, 2026

      ​@daveatsafes answer will give you a string formatted like you requested.

       

      If you’re looking to convert it into a List (FMEs ‘equivalent’ to an array) the steps would be:

      1. StringReplacer - replace “ with nothing (leave the replace field empty)
      2. AttributeSplitter - set the delimiter to ,
      3. The output will be one feature for each input, with a List containing one item for each of those in the input string

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