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@sec-ant/readable-stream
Advanced tools
A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.
A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStream
s.
ReadableStream
With this package, you can consume a ReadableStream
as an AsyncIterable
.
AsyncIterable
or an Iterable
into a ReadableStream
With this package, you can construct a ReadableStream
from an AsyncIterable
or an Iterable
.
This package passes all the aforementioned tests.
npm i @sec-ant/readable-stream
This package can be imported as a ponyfill to avoid side effects:
asyncIterator
Path:
@sec-ant/readable-stream/ponyfill/asyncIterator
Example:
import {
asyncIterator,
type ReadableStreamIteratorOptions,
} from "@sec-ant/readable-stream/ponyfill/asyncIterator";
const readableStream = (await fetch("https://www.example.org/")).body;
let total = 0;
for await (const chunk of asyncIterator(readableStream)) {
total += chunk.length;
}
console.log(total);
Check https://streams.spec.whatwg.org/#rs-class-definition and https://streams.spec.whatwg.org/#rs-asynciterator for further explanation on ReadableStreamIteratorOptions
.
fromAnyIterable
Path:
@sec-ant/readable-stream/ponyfill/fromAnyIterable
Example:
import { fromAnyIterable } from "@sec-ant/readable-stream/ponyfill/fromAnyIterable";
const readableStream = fromAnyIterable(["a", "b"]);
Path:
@sec-ant/readable-stream/ponyfill
Example:
import {
fromAnyIterable,
asyncIterator,
type ReadableStreamIteratorOptions,
} from "@sec-ant/readable-stream/ponyfill";
This package can be imported as a drop-in polyfill with side effects.
ReadableStream.prototype[Symbol.asyncIterator]
and ReadableStream.prototype.values
Path:
@sec-ant/readable-stream/polyfill/asyncIterator
Example:
import "@sec-ant/readable-stream/polyfill/asyncIterator";
const readableStream = (await fetch("https://www.example.org/")).body;
let total = 0;
for await (const chunk of readableStream) {
total += chunk.length;
}
console.log(total);
ReadableStream.from
Path:
@sec-ant/readable-stream/polyfill/fromAnyIterable
Example:
import "@sec-ant/readable-stream/polyfill/fromAnyIterable";
const readableStream = ReadableStream.from(["a", "b"]);
Note that ReadableStream.from
is not typed because declared vars cannot be overridden.
Path:
@sec-ant/readable-stream/polyfill
Example:
import "@sec-ant/readable-stream/polyfill";
asyncIterator
Path:
@sec-ant/readable-stream/asyncIterator
Example:
import {
asyncIterator,
type ReadableStreamIteratorOptions,
} from "@sec-ant/readable-stream/asyncIterator";
// also with side effects
fromAnyIterable
Path:
@sec-ant/readable-stream/fromAnyIterable
Example:
import { fromAnyIterable } from "@sec-ant/readable-stream/fromAnyIterable";
// also with side effects
Path:
@sec-ant/readable-stream
Example:
import {
fromAnyIterable,
asyncIterator,
type ReadableStreamIteratorOptions,
} from "@sec-ant/readable-stream";
// also with side effects
You can also use this package to augment the ReadableStream
type for async iteration if the runtime already supports it but the type system does not.
Path:
@sec-ant/readable-stream/async-iterator
Example:
/// <reference types="@sec-ant/readable-stream/async-iterator" />
MIT
FAQs
A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.
We found that @sec-ant/readable-stream demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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