#asynchronous-programming

4d ago · 3 min read · 1. Why async code exists in Node.js Imagine you ask Node.js to read a file from your disk. That file could be small — or it could be 200MB. Either way, reading it takes time. And while Node.js is wait

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NRNavdeep Rohillajavascript-journey-by-navdeep.hashnode.dev

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Synchronous vs Asynchronous JS

4d ago · 5 min read · JavaScript is single-threaded. That sounds technical, but it simply means: it can only do one thing at a time. If JavaScript only does one thing at a time, how does it handle loading tweets, playing a

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NRNavdeep Rohillanode-js-by-navdeep.hashnode.dev

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How Node.js handles Multiple Requests with a Single Thread

4d ago · 3 min read · Most developers hear "single-threaded" and immediately think — wait, how does this thing even work at scale? It sounds like a limitation. But Node.js turns it into a superpower. Let me break it down s

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NRNavdeep Rohillanode-js-by-navdeep.hashnode.dev

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Blocking vs Non-Blocking Code in Node.js

4d ago · 9 min read · One of the most confusing moments for beginners learning Node.js happens when they write perfectly working code… and the server still feels slow. At first, everything seems fine during development. Yo

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NRNavdeep Rohillajavascript-journey-by-navdeep.hashnode.dev

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Error Handling in JS: Try , Catch Finally

4d ago · 5 min read · Introduction No matter how carefully we write code, errors are always going to happen. Sometimes the user enters wrong input. Sometimes the server stops responding. Sometimes we ourselves forget a var

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NRNavdeep Rohillajavascript-journey-by-navdeep.hashnode.dev

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JavaScript Promises: Explained for Beginners

4d ago · 6 min read · Introduction Whenever we use websites like Instagram, YouTube, WhatsApp, or Netflix, many things happen in the background. Messages load after some time. Videos buffer. Data comes from servers. Paymen

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NRNavdeep Rohillanode-js-by-navdeep.hashnode.dev

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The Node.js Event Loop Explained

4d ago · 5 min read · If you've started learning Node.js, you've probably heard this sentence: "Node.js is single-threaded but can handle many requests at once." At first, that sounds confusing. If Node.js uses only one th

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SSSanghita Sealsanghitadev.hashnode.dev

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Async Code in Node.js: Callbacks and Promises

5d ago · 5 min read · Imagine a pizza restaurant during peak hours. Customers keep placing orders: one pizza needs baking, another needs toppings, another needs delivery packing. Now imagine the chef stopping everything un

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KTKushagra Trivedikushagrablogs.hashnode.dev

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Async Code in Node.js: Callbacks and Promises

5d ago · 3 min read · Topics to Cover Why async code exists in Node.js Callback-based async execution Problems with nested callbacks Promise-based async handling Benefits of promises Why async code exists in Node.js

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SScopiescopie.hashnode.dev

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Building a Learning Platform

May 5 · 9 min read · A backend engineer's first-person account of building Naija Learn from scratch. Every great project starts with a conversation. Mine started with a simple thought: Nigerian students deserve better. N

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