node_modules/is-stream/readme.md


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

# is-stream [![Build Status](https://travis-ci.org/sindresorhus/is-stream.svg?branch=master)](https://travis-ci.org/sindresorhus/is-stream)

> Check if something is a [Node.js stream](https://nodejs.org/api/stream.html)


## Install

```
$ npm install --save is-stream
```


## Usage

```js
const fs = require('fs');
const isStream = require('is-stream');

isStream(fs.createReadStream('unicorn.png'));
//=> true

isStream({});
//=> false
```


## API

### isStream(stream)

#### isStream.writable(stream)

#### isStream.readable(stream)

#### isStream.duplex(stream)

#### isStream.transform(stream)


## License

MIT © [Sindre Sorhus](https://sindresorhus.com)