Chapter 4 suggestion - improving the break keyword example

📚 Official Books Dart Apprentice
1

I suggest a more complete example below:

var sum = 1;
while (true) {
  print(sum);
  sum += 4;
  if (sum > 10) {
    break;
  }
}
// 1, 5, 9 will be printed

In addition, many examples start with say, sum = 2, I suggest change to var sum = 2

2

For each key concept explained in the book, the example code blocks follow on from each other.

The sum variable is declared in the first example of the while loop.

var sum = 1;
while (sum < 10) {
  sum += 4;
  print(sum);
}
3 Likes
3

Hi Laura, thank you for the explanation. I see the reason behind now.

1 Like
4

The example has been updated to make this more clear in the soon-to-be-published book Dart Apprentice: Fundamentals chapter 6 “Loops”. Thanks you for posting.