Working with For loop in Dart (and Flutter)

The for loop is one of the most important features in many programming languages including Dart.

1. For-in syntax

Example:

void main() {
  final myList = [1, 2, 3, 4, 5, 6, 7, 8, 9];
  for (var item in myList) {
    print(item);
  }
}

Output:

1
2
3
4
5
6
7
8
9

2. A different syntax of the “for” loop in Dart

Example:

void main() {
  final myList = [1, 2, 3, 4, 5, 6, 7, 8, 9];
  for(var i = 0; i < myList.length; i++){
    print(myList[i]);
  }
}

Output:

1
2
3
4
5
6
7
8
9

Further reading:

• Dart: Convert Class Instances (Objects) to Maps and Vice Versa
• 2 Ways to Get a Random Item from a List in Dart (and Flutter)
• How to Check if a Variable is Null in Flutter and Dart
• How to Flatten a Nested List in Dart
• Inheritance in Dart: A Quick Example
• Flutter & Dart: 3 Ways to Generate Random Strings
• Using Static Methods in Dart and Flutter

You can also check out our Flutter category page or Dart category page for the latest tutorials and examples.