How can we get 1st index elements of each array in different new array

Question

How can we get 1st index elements of each array in different new array. Like {2,13,65} {7,15,45} {14,3,56} So output of 1st elements should be {2,7,14} And for 2nd and 3rd {13,15,3} {65,45,56}

Harshit Bumb (Appyzie) · Accepted Answer

Appian doesn't really understand list of list and therefore it will flatten them into one big array. You might have to cast it in a dictionary so it can iterate on that. 
 a!localVariables(
 local!array:{
 {
 list: {2,13,65}
 },
 {
 list: {7,15,45}
 },
 {
 list: {14,3,56}
 }
 
 },
 a!forEach(
 items: local!array,
 expression: fv!item.list[1]
 )
) 
 You can change the value of 1 to your desired index.

How can we get 1st index elements of each array in different new array

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