HH\Iterable::lazy
Returns a lazy, access elements only when needed view of the current
Iterable
public function lazy(): Iterable<Tv>;
Normally, memory is allocated for all of the elements of the Iterable
.
With a lazy view, memory is allocated for an element only when needed or
used in a calculation like in map()
or filter()
.
Guide
Returns
Iterable<Tv>
- anIterable
representing the lazy view into the currentIterable
.