whereNotNull method

@useResult Iterable<T> whereNotNull()

Returns the non-null elements as an Iterable<T>.

Unlike whereType<T>(), the element type is recovered as the non-nullable T directly, so callers do not need a separate cast.

Lazy: nothing runs until the result is iterated.

Example:

[1, null, 3].whereNotNull(); // (1, 3)

Audited: 2026-06-12 11:26 EDT

Implementation

@useResult
Iterable<T> whereNotNull() sync* {
  for (final T? element in this) {
    if (element != null) {
      yield element;
    }
  }
}