How can i add an entry to a specific index in a list?

Question

I can call list.add() which adds at the end but there is no convenient way to add an entry to a specific index which at the same time grows the list.

Answer 1

You can use insertRange, it will grow the list when adding new elements.

var list = ["1","3","4"];
list.insertRange(0, 1, "0");
list.insertRange(2, 1, "2");
list.forEach((e) => print(e));

You can try it out on the DartBoard here