Practice iterating over collections using loops on your own, through a hands-on challenges.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/29744101-programming-in-dart-control-flow-collections/lessons/7
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/29744101-programming-in-dart-control-flow-collections/lessons/7