What is growable list in flutter?

To create an empty list, use [] for a growable list or List. empty for a fixed length list (or where growability is determined at run-time). The created list is fixed-length if length is provided. The list has length 0 and is growable if length is omitted.

var list = List(); list. add(1, 2); // list literal definition var list2 = [1, 2, 3]; Dart infers that this is variable of type List<int> . When using data structures like a List or Map , you use < and > to define the types of the values within the List or Map .

Fixed Length List

Growable List

They are growable by default , according to the docs: The default growable list, as returned by new List() or [], keeps an internal buffer, and grows that buffer when necessary.24 Oca 2020