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is-stream Build Status

Check if something is a Node.js stream

Install

$ npm install --save is-stream

Usage

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