编辑代码

void main() {
  int intValue = 1;
bool boolValue = intValue != 0;
print(boolValue);
var lazyCounter = 0;
var eagerCounter = 0;

var lazyOddFilter = [1, 2, 3, 4, 5, 6, 7].where((i) {
    print(i);
  lazyCounter++;
  return i % 2 == 0;
});
 print(lazyCounter);
}