Build a string in a loop

Permanently deleted user

14 novembre 2017 22:34

I have a For Each loop and I need to concatenate elements each time around to the string to be used later in the workflow.

I just can't work it out.

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  Permanently deleted user

  14 novembre 2017 22:41

  I am not completely sure what you want to achieve and what you meant by 'Elements'. But here is what you may try.

  1. Create array object using 'Create Value' activity. say = []
  2. On For-Each, you get whatever object from the For-Each collection item, and Add it to the [] using 'Add Item' activity inside each For-Each loop
  3. After finishing For-Each activity, you have now the update [] with the values to use later on your workflow step

  Does it make it sense?

   

  Moon 1

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  Permanently deleted user

  14 novembre 2017 22:55

  By element I meant, I am needing to build a sting by appending the coordinates of the point each time around.

  Your solution makes complete sense for the creation of an array (or collection) but I felt like I had a circular reference when I used the "Create Value" activity. I need to be able to Update the 'value'.

   

  BTW thanks for the rapid response 😁

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  Stefan Schweigert

  15 novembre 2017 00:39

  Hi Robert,

   

  I've attached a sample workflow of how to achieve this. Within the For Each loop, you can use this syntax to concatenate: =$value1.result += $forEach1.item

   

  Thanks, Stefan

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  Permanently deleted user

  15 novembre 2017 00:54

  Ahh excellent!!!

  The trick is the "Evaluate Expression" activity

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