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Learn how to use Node.js Streams to download, process, and re-upload huge datasets without blocking the event loop, complete with real-time progress visualization.
Csv
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This tutorial shows how to process a 13 million‑row CSV entirely in the browser, using Web Streams to read data in chunks, TransformStreams for parsing lines, and Web Workers to offload heavy work—ensuring the UI stays responsive and displaying real-time progress—all without any backend.