---
title: "Discussion on \"Async Code in Node.js: Callbacks and Promises\" | Hashnode"
description: "Discussion on \"Async Code in Node.js: Callbacks and Promises\". Why does the Asynchronous code Exists?\nThe best word statement that clarifies this question is the\n\nJavaScript is single Threaded and the Internet is slow.\n\nSo , for example if there is a API call to"
url: "https://hashnode.com/posts/async-code-in-node-js-callbacks-and-promises/69ee151e3d6a492cdd05b5d0"
---

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# [Async Code in Node.js: Callbacks and Promises](https://javascript-insights-by-rohit.hashnode.dev/async-code-in-node-js-callbacks-and-promises?utm_source=hashnode&utm_medium=feed)

Why does the Asynchronous code Exists? The best word statement that clarifies this question is the JavaScript is single Threaded and the Internet is slow. So , for example if there is a API call to

Apr 26 · 6 min read · javascript-insights-by-rohit.hashnode.dev  
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