You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.6 KiB
Markdown
61 lines
1.6 KiB
Markdown
7 months ago
|
# is-stream
|
||
|
|
|
||
|
|
> Check if something is a [Node.js stream](https://nodejs.org/api/stream.html)
|
||
|
|
|
||
|
|
## Install
|
||
|
|
|
||
|
|
```
|
||
|
|
$ npm install is-stream
|
||
|
|
```
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
const fs = require('fs');
|
||
|
|
const isStream = require('is-stream');
|
||
|
|
|
||
|
|
isStream(fs.createReadStream('unicorn.png'));
|
||
|
|
//=> true
|
||
|
|
|
||
|
|
isStream({});
|
||
|
|
//=> false
|
||
|
|
```
|
||
|
|
|
||
|
|
## API
|
||
|
|
|
||
|
|
### isStream(stream)
|
||
|
|
|
||
|
|
Returns a `boolean` for whether it's a [`Stream`](https://nodejs.org/api/stream.html#stream_stream).
|
||
|
|
|
||
|
|
#### isStream.writable(stream)
|
||
|
|
|
||
|
|
Returns a `boolean` for whether it's a [`stream.Writable`](https://nodejs.org/api/stream.html#stream_class_stream_writable).
|
||
|
|
|
||
|
|
#### isStream.readable(stream)
|
||
|
|
|
||
|
|
Returns a `boolean` for whether it's a [`stream.Readable`](https://nodejs.org/api/stream.html#stream_class_stream_readable).
|
||
|
|
|
||
|
|
#### isStream.duplex(stream)
|
||
|
|
|
||
|
|
Returns a `boolean` for whether it's a [`stream.Duplex`](https://nodejs.org/api/stream.html#stream_class_stream_duplex).
|
||
|
|
|
||
|
|
#### isStream.transform(stream)
|
||
|
|
|
||
|
|
Returns a `boolean` for whether it's a [`stream.Transform`](https://nodejs.org/api/stream.html#stream_class_stream_transform).
|
||
|
|
|
||
|
|
## Related
|
||
|
|
|
||
|
|
- [is-file-stream](https://github.com/jamestalmage/is-file-stream) - Detect if a stream is a file stream
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
<div align="center">
|
||
|
|
<b>
|
||
|
|
<a href="https://tidelift.com/subscription/pkg/npm-is-stream?utm_source=npm-is-stream&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
|
||
|
|
</b>
|
||
|
|
<br>
|
||
|
|
<sub>
|
||
|
|
Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
|
||
|
|
</sub>
|
||
|
|
</div>
|