#v8

Node.js Just Cut Its Memory in Half — One Docker Line, Zero Code Changes, $300K Saved

Somewhere in AWS us-west-2, a Node.js cluster is running. Six replica pods. 2 GB memory per pod. Half of that memory is pointers — 64-bit addresses pointing to other objects, arrays, closures, and strings. Not your data. Not your business logic. Just...

Feb 1818 min read

SRSatyam Raiadvancenodejs.hashnode.dev

Mastering Node.js Memory: Prevent Leaks and Boost Performance

Node.js applications are fast and scalable, but long-running servers often fail due to one silent killer: memory leaks. These leaks slowly increase memory usage, degrade performance, and eventually crash servers. In this blog, we’ll explore how Node....

Feb 105 min read

RARok Ajdnikajdnik.hashnode.dev

FizzBuzz Madness in JavaScript

If you asked a kid what FizzBuzz is, they'd probably tell you it's a game they played at school. The teacher would corral them into a circle, and they'd start counting numbers out loud in a clockwise fashion. For every number divisible by 3, they'd s...

Feb 722 min read

AHAriska Hidayattech.finlup.id

🧠 V8 vs JavaScriptCore: Pertarungan Mesin JavaScript dan Cara Bun Menyelaraskan Dunia Node.js

Dalam dunia runtime JavaScript modern, dua mesin besar mendominasi: V8 dan JavaScriptCore.Keduanya mengeksekusi JavaScript, tetapi memiliki arsitektur, optimasi, dan ekosistem berbeda.Pemahaman tentang keduanya penting, terutama sejak munculnya Bun, ...

Nov 13, 20254 min read

VBVanshika Bhargavavanshiz.hashnode.dev

Under the Hood: How Node.js Really Works

Node.js - the backbone of backend development in JavaScript. But have you ever wondered what's actually happening behind the scenes when you run your JavaScript code on a server? Let's dive deep into the internals and uncover the magic! What is V8 & ...

Oct 21, 20256 min read

RSRachit Srivastavajavascriptinternals.hashnode.dev

Under the Hood of JavaScript Arrays: V8 Internals, Hidden Optimizations, and Performance Secrets

Most JavaScript developers use arrays daily — but very few know what truly happens when you type arr.push(5) or leave a gap in an array.Behind the scenes, the V8 engine (the powerhouse behind Chrome and Node.js) performs some fascinating optimization...

Oct 14, 20254 min read

AEArda Erenardaeren.hashnode.dev

Why JavaScript is Still Slower Despite C++ Foundation (And 3 Ways to Fix It)

This question hits me every time I explain that Node.js is essentially C/C++ with JavaScript bindings. It's like asking why a luxury sedan is slower than a Formula 1 car when they both have engines. The answer reveals something profound about how we ...

Sep 30, 20256 min read

AGAbhishek Gargblog.theabgarg.com

Under the Hood: How Modern JavaScript Engines Achieve High Performance

JavaScript is at the heart of modern web development, powering everything from massive, complex frameworks to enterprise-level Node.js services. While developers enjoy its flexibility, many don't know what happens at the system level to make their co...

Sep 17, 20255 min read

JKJay Kadlagblog.devwithjay.com

JavaScript on the Server

Introduction We all know JavaScript as the language of the browser. But have you ever wondered how it became a part of backend development too? At one point, JavaScript was limited to things like button clicks and animations. But with the introductio...

Sep 2, 20257 min read

DPDmitriy Pletenskyidmytrotech.hashnode.dev

The Dark Magic of JavaScript: V8 Tricks That Actually Matter

Last week, I watched a senior developer's jaw drop when I made their data pipeline run 9x faster by changing how they built arrays. No algorithms. No workers. No fancy libraries. Just understanding what V8 actually wants from your code. But here's wh...

Aug 2, 202510 min read

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#v8

Node.js Just Cut Its Memory in Half — One Docker Line, Zero Code Changes, $300K Saved