awaitNext: Wait for the next value from a channel or stream.

In crowding/generators: Coroutines: Generators / Yield, Async / Await, and Streams

Wait for the next value from a channel or stream.

Description

awaitNext can be used within an async or stream coroutine. When reached, awaitNext will register to receive the next element from an async or a coroutine object.

Usage

awaitNext(strm, or, err)

Arguments

strm	A channel or stream object.
or	This argument will be evaluated and returned in the case the channel closes. If not specified, awaiting on a closed stream will raise an error with message "StopIteration".
err	A function to be called if the channel throws an error condition.

Value

In the context of an async or stream, awaitNext(x) returns the resolved value of a promise x, or stops with an error.

crowding/generators documentation built on June 28, 2023, 6:14 a.m.