Function tap

tap<T>(fn: (chunk: T) => SyncOrAsync<void>): TransformStream<T, T>
Tap function for side effects without modifying the stream
Type Parameters
- T
Parameters
- fn: (chunk: T) => SyncOrAsync<void>
  The function to execute for each chunk (for side effects)
Returns TransformStream<T, T>
A TransformStream that passes chunks unchanged after executing the function
Example
```
const stream = readable.pipeThrough(tap(x => console.log(`Processing: ${x}`)));
```
- Defined in index.ts:110