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Node.js architecture

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Series
- 🏷️ javascript
- 🏷️ node.js
process.nextTick, setImmediate, and setTimeout

In the previous article, we learned about the 6 phases of an event loop, their functions, and which types of callback functions are handled in each phase. Additionally, there is a special phase called process.nextTick, which is not part of the Event loop but has the highest priority. This seemingly simple concept often confuses many, even experienced developers. So, when process.nextTick, setImmediate, and setTimeout are placed together, which callback do you think executes first...

🕝 last year
Series
- 🏷️ node.js
Node.js Architecture - The Event Loop

In the previous article, we learned that the Event Loop is a critical component in JavaScript/Node.js. Its job is to return the callback functions from the Callback queue back to the call stack. But the story doesn't end there; the Event Loop has different ways of returning these functions. In other words, callback functions have different priority levels. The higher the priority, the faster the Event Loop returns it to the call stack. Understanding this mechanism will help readers write performance-optimized programs. Let's first explore...

🕝 5 years ago
Series
- 🏷️ node.js
Node.js Architecture - How does Node.js handle asynchronous tasks?

In the previous article, we learned that JavaScript/Node.js has only one main thread to execute JavaScript code. We also understood the difference between synchronous and asynchronous I/O tasks. JavaScript/Node.js smartly adopts an asynchronous handling mechanism to avoid blocking the call stack. In today's article, we will explore how Node.js handles asynchronous operations. First, let’s get acquainted with a new component...

🕝 5 years ago
Series
- 🏷️ node.js
Node.js Architecture - Single thread, call stack, synchronous and asynchronous I/O in Node.js

C is a programming language known to many when starting a career. C is simple to approach but can become a "nightmare" for those who want to delve deeper into it. Programming is similar to explaining something to someone else, except here you are explaining it to a computer. Creating a program involves interpreting what you want to do step-by-step, line-by-line. Then the computer executes the program in the written order. That means the code runs sequentially from top to bottom, left to right, processing one block before moving to the next. For example, a program...

🕝 5 years ago
Series
- 🏷️ node.js
Node.js Architecture - Introduction to Node.js

Hello readers of 2coffee.dev, the Node.js Architecture is a series of articles I wrote a long time ago, from the early days of blogging. Over time, this series has attracted a lot of attention. However, the expression was still vague and not to the taste of readers, so today I have decided to rewrite some articles in this series to express myself better and update a few new pieces of information. This series provides readers with an overview of the architectural model of Node.js and how it works. This will help readers understand...

🕝 5 years ago