doc: stream wrong chunk type with objectMode = false

[haoadoreorange]

📗 API Reference Docs Problem

• Subsystem: stream

Location

Section of the site where the content exists

Affected URL(s):

• https://nodejs.org/api/stream.html#event-data

Description

Concise explanation of the problem

The push and chunk type on event data in current implementation does not include string with objectMode = false

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[kovan]

The current documentation for the 'data' event already states that the chunk is {Buffer|string|any}, where non-object mode streams emit either a string (when readable.setEncoding() has been called) or a Buffer — this matches the implementation.

In readableAddChunkPushByteMode (lib/internal/streams/readable.js), push() accepts string, Buffer, TypedArray, and DataView in byte mode. TypedArray and DataView are converted to Buffer internally before reaching the 'data' event, so the documented types (Buffer|string) are correct for what the consumer actually receives.

Could you clarify what specific discrepancy you're seeing? It's possible the docs have been updated since this issue was filed. If the issue is resolved, this could be closed.