Streaming interview questions

Buffer bursty streamed text and emit it one character at a time at a steady cadence, with flush and stop controls.

Decode a Server-Sent Events stream arriving in arbitrary chunks into discrete parsed events.

Build a pure, immutable reducer that opens an assistant message, appends streamed deltas, and finalizes it.

Track streaming LLM tool calls by id, accumulating argument deltas and guarding each pending, running, and done transition.

Parse a truncated JSON string into the best-valid value so far by completing open strings and containers.

Render markdown-so-far to HTML, holding and closing unclosed bold, inline code, and fenced code blocks.