every method Null safety

bool every(
  1. bool test(
    1. E element
    )
)
override

Checks whether every element of this iterable satisfies test.

Checks every element in iteration order, and returns false if any of them make test return false, otherwise returns true.

Implementation

bool every(bool test(E element)) {
  for (E element in this) {
    if (!test(element)) return false;
  }
  return true;
}