What could cause an Arcade script to return "Cannot read property length of undefined"

Matthew Webb

22 Maj 2020 19:03

I can show that data is being pulled through a Text($feature) arcade expression but when I simply have the expression $feature.FieldName I recieve the message in the console: "Cannot read property length of undefined". Any help would be greatly appreciated!

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  Amanda Frech

  22 Maj 2020 19:15

  I haven't run into this before, but I'd be curious to know whether the error is the same if you use the alternate format for the field:

  $feature['FieldName']

  I'd also be curious to know whether the same issue happens for every field, or just that particular one.

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  Matthew Webb

  22 Maj 2020 19:23

  Thanks Amanda! It does occur with every field on this layer and I have also tried the $feature['FieldName']. 

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