countWhere method

int countWhere(
  1. bool condition(
    1. T
    )
)

Implementation

int countWhere(bool Function(T) condition) {
  int count = 0;
  if (this.count() == 0) {
    return count;
  }
  for (final item in this!) {
    if (condition(item)) {
      count++;
    }
  }
  return count;
}