Node.js core streams for userland 
npm install --save readable-stream
This package is a mirror of the streams implementations in Node.js.
Full documentation may be found on the Node.js website.
If you want to guarantee a stable streams base, regardless of what version of Node you, or the users of your libraries are using, use readable-stream only and avoid the “stream” module in Node-core, for background see this blogpost.
As of version 2.0.0 readable-stream uses semantic versioning.
v3.x.x of readable-stream supports Node 6, 8, and 10, as well as evergreen browsers, IE 11 and latest Safari. The breaking changes introduced by v3 are composed by the combined breaking changes in Node v9 and Node v10, as follows:
v2.x.x of readable-stream supports all Node.js version from 0.8, as well as evergreen browsers and IE 10 & 11.
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You can swap your require('stream') with require('readable-stream') without any changes, if you are just using one of the main classes and functions.
const { Readable, Writable, Transform, Duplex, pipeline, finished } = require('readable-stream')
Note that require('stream') will return Stream, while require('readable-stream') will return Readable. We discourage using whatever is exported directly, but rather use one of the properties as shown in the example above.
readable-stream is maintained by the Streams Working Group, which oversees the development and maintenance of the Streams API within Node.js. The responsibilities of the Streams Working Group include:
readable-stream to be included in Node.js.