In the above list 3 is in 3rd position,fifth position and seventh position but If I use “index is in thing list” block then I’ll get only third position how I’ll get fifth and seventh position?
Read the query(first post) carefully again. The user here wants the index of repeated item. Your blocks don’t do the same.
Also looking at your blocks, it’s seems that you have manipulated the Do it result, because the Do it result doesn’t match with the input you are providing (index = 0)
I feel this is the most efficient way, the returned result will be in a form of a list and the list will be empty if there are no matching items in the input list