Function iterate

iterate<V>(generator: () => Awaitable<V | undefined>): Feed<V>
Creates a feed from repeated calls to a generator function.

The generator is called on demand, once the value it returned last has been consumed, and the feed ends as soon as a call returns undefined. Every other value is contributed as a single item, whatever its shape and without being expanded further, so arrays and iterables are carried whole and falsy values are preserved. A promised value is awaited before being contributed, so cursors, queues and any other source producing one value at a time are driven directly by the feed.

Generators that never run dry produce an infinite feed, to be bounded downstream by a task such as take or by a sink deciding its outcome early.
Type Parameters
- V
  The type of values contributed to the feed
Parameters
- generator: () => Awaitable<V | undefined>
  The function called repeatedly to produce the next value; an undefined result ends the feed
Returns Feed<V>
A feed yielding the values returned by successive generator calls
Example
```
await pipe(
  (iterate(() => Math.random()))
  (take(3))
  (toArray())
);  // [0.123, 0.456, 0.789]
```
See
feed to open a feed from a source expanded according to its shape
- Defined in feeds/iterate.ts:52