How does the async queue work in Node.js?

Short answer: sync queues (e.g., with libraries like async.queue) allow you to: Control concurrency (limit how many async tasks run simultaneously).

Explain a bit more

Queue tasks and process them in order. sync queues (e.g., with libraries like async.queue) allow you to: Control concurrency (limit how many async tasks run simultaneously). Queue tasks and process them in order. Example with async library: const async = require('async'); const queue = async.queue(async (task) => { wait doWork(task); }, 2); // concurrency = 2 queue.push({ id: 1 }); queue.push({ id: 2 }); Node.js internally uses libuv’s thread pool for async I/O, but the event loop manages task scheduling on the single main thread. dditional Important Node.js Questions & Answers Core Concepts & Runtime sync queues (e.g., with libraries like async.queue) allow you to: Control concurrency……

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1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.