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Read an exact number of bytes from a binary (async) iterable
$ npm i it-reader
import { reader } from 'it-reader'
const stream = reader(source) // source is any iterable or async iterable
const { value, done } = await stream.next(8)
// NOTE: value is a BufferList (https://npm.im/bl)
console.log(value.toString())
// Now read 16 more bytes:
await stream.next(16)
// or...
// Consume the rest of the stream
for await (const chunk of stream) {
console.log(chunk.toString())
}
import { reader } from 'it-reader'
reader(source)
Create and return a new reader.
source
(Iterable
) - An iterable or async iterable that yields Buffer
or BufferList
objects.An async iterator that yields BufferList
objects.
The iterator's next
method takes an optional parameter - the number of bytes to read from the source
.
If the number of bytes to read are not specified, the iterator will yield any bytes remaining in the internal buffer or the next available chunk.
If the number of bytes to read exceeds the number of bytes available in the source the iterator will throw and error with a code
property set to 'ERR_UNDER_READ'
and a buffer
property (the bytes read so far, if any), which is a BufferList
instance.
Feel free to dive in! Open an issue or submit PRs.
Licensed under either of
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
FAQs
Read an exact number of bytes from a binary (async) iterable
We found that it-reader demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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