Files
boc/vims-backend/node_modules/is-stream
Bernt 6de2455917 v1.2.0: Add Global Markets footer, translated to 9 languages
- Added GLOBAL_MARKETS_TITLE to all translation files
- Updated footer with 12 markets (4 active + 8 upcoming)
- Translated market section to: zh-cn, zh-tw, ja, ko, th, vi, id, ms, hi
- Built and deployed to production
- CloudFront invalidation: I3RTMXVFDJXWLG3SYX208OP1CC
2026-07-08 19:56:03 +00:00
..

is-stream

Check if something is a Node.js stream

Install

$ npm install is-stream

Usage

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.

isStream.writable(stream)

Returns a boolean for whether it's a stream.Writable.

isStream.readable(stream)

Returns a boolean for whether it's a stream.Readable.

isStream.duplex(stream)

Returns a boolean for whether it's a stream.Duplex.

isStream.transform(stream)

Returns a boolean for whether it's a stream.Transform.


Get professional support for this package with a Tidelift subscription
Tidelift helps make open source sustainable for maintainers while giving companies
assurances about security, maintenance, and licensing for their dependencies.