SplitScript reference / Iterator / map

Iterator.map

Method

T.map<T>(transform: (Item) -> U) -> MapIterator<T, Item, U> where T: Iterator

Lazily transforms every remaining item from this cursor.

The callback runs only when the returned iterator is advanced. The original cursor becomes the source owned by that adapter, so iterating the adapter continues from its current position.

Parameters

• transform: Transformation applied to each yielded item.

Effects: pure

Runtime behavior: available everywhere; synchronous

Examples

Double values as they are consumed

let doubled = [1, 2, 3].iterator().map(value => value * 2)
for value in doubled {
    print(value)
}