Pulse Agent
0889ee9117
feat(hooks): add useLiveStream generic WebSocket hook - supports websocket/sse/polling transports - exponential backoff reconnect with jitter - circular buffer with configurable size - typed filter callback per use case - manual disconnect + reconnect + error state feat(hooks): add useLiveMetrics derived hook - sliding time-window cut - moving average (configurable window) - current / avg / min / max / ratePerSecond - zero allocations per tick (memoized) feat(charts): add LiveMetricChart molecule (Recharts) - line + area variants, grid + tooltip - moving-average overlay (dashed) - ConnectionStatus atom in header - status bar + compact mode - 100% responsive, GPU via SVG ViewBox feat(atoms): add ConnectionStatus indicator - 5 states: disconnected/connecting/connected/reconnecting/error - animated pulse, JetBrains Mono, pill style - exported helpers: formatLatency / formatBytes docs(pkg): bump v0.1.0 → v0.2.0, add recharts peerDep
is-stream
Check if something is a Node.js stream
Install
$ npm install is-stream
Usage
import fs from 'node:fs';
import {isStream} from 'is-stream';
isStream(fs.createReadStream('unicorn.png'));
//=> true
isStream({});
//=> false
API
isStream(stream)
Returns a boolean for whether it's a Stream.
isWritableStream(stream)
Returns a boolean for whether it's a stream.Writable.
isReadableStream(stream)
Returns a boolean for whether it's a stream.Readable.
isDuplexStream(stream)
Returns a boolean for whether it's a stream.Duplex.
isTransformStream(stream)
Returns a boolean for whether it's a stream.Transform.
Related
- is-file-stream - Detect if a stream is a file stream
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