how to convert list dynamic to list string in flutter code example

Example 1: flutter convert list dynamic to list string

// succeeds - is dynamic
// gives List<dynamic> 
var target_list_1 = [] + str_list;

// succeeds - is dynamic
// gives List<dynamic> 
var target_list_2 = List<dynamic>.from(str_list);

Example 2: flutter list dynamic to list int

List<dynamic> dynList = [1,2,3,4,5];
List<int> intList = dynList.cast<int>();