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How to detect an empty string variable?


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I simply want to check if a string variable is empty. The "If Variable" - command seem to fit better with integer variables. What to compare with and which comparisontype i have to choose i don´t know:

%T%:

  • Equals
  • Does not Equal
  • Is Less Than
  • Is Greater Than
  • Is Greater Than or Equal To
  • Is Less Than or Equal To
  • Contains
  • Does Not Contain
  • Exists
  • Does Not Exist

to XY???

 

Thanks

Alexandra

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