where method
- bool f(
- E element
override
Returns a new lazy Iterable with
all elements that satisfy the
predicate test
.
The matching elements have the same order in the returned iterable as they have in iterator.
This method returns a view of the mapped elements.
As long as the returned Iterable
is not iterated over,
the supplied function test
will not be invoked.
Iterating will not cache results, and thus iterating multiple times over
the returned Iterable may invoke
the supplied
function test
multiple times on the same element.
Implementation
Iterable<E> where(bool f(E element)) => WhereIterable<E>(this, f);