@sajjadalidev

Sajjad Ali

@sajjadalidevLahore, Punjab, PAKJoined January 2026

Software Engineer

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Sajjad Ali's blogs

Sessions vs JWT vs Cookies: Understanding Authentication Approachessessions-jwt-cookies-sajjadalidev.hashnode.dev2 posts How Git Works: Inside the .git Folderhow-git-works-inside-the-git-folder.hashnode.dev1 post Master Git: Basics & Core Commandsmaster-git-basics-and-core-commands.hashnode.dev1 post DNS Record Types Explainedsajjadalidev.hashnode.dev1 post

Master Emmet: Write HTML Faster Nowsajjadalidev-lear-emmet-toolkit-to-write-code-faster.hashnode.dev1 post

How Node.js Handles Multiple Requests with a Single Thread

Node.js is famously efficient, but it often confuses newcomers: how can a language that only does one thing at a time handle thousands of simultaneous users? The secret isn't in doing everything at on

Apr 28 · 3 min readnodejs-handle-multiple-request.hashnode.dev

URL Parameters vs Query Strings in Express.js

When building APIs with Express.js, you need structured ways to capture data sent by clients. URL parameters and query strings are the two fundamental methods for passing this data. While both send in

Apr 28 · 4 min readsessions-jwt-cookies-sajjadalidev.hashnode.dev

Sessions vs JWT vs Cookies: Understanding Authentication Approaches

Choosing the right authentication strategy is a cornerstone of modern web development. Whether you're building a simple blog or a high-traffic microservices architecture, understanding the trade-offs

Apr 28 · 3 min readsessions-jwt-cookies-sajjadalidev.hashnode.dev

Node.js Async: Callbacks to Promises

Node.js is designed to be highly scalable, and its asynchronous nature is the foundation of that efficiency. Understanding how Node.js handles tasks allows you to write non-blocking code that performs

Apr 28 · 3 min readasync-code-in-nodejs-sajjadalidev.hashnode.dev

Linux File System Hunting

A Beginner’s Guide to Hunting Through the Linux File System The Linux file system can feel like a labyrinth if you are coming from Windows or macOS. Instead of drive letters like C: or D:, everything

Apr 22 · 3 min readlinux-file-system-hunting-sajjadalidev.hashnode.dev

Sajjad Ali

About

Available for

Sajjad Ali's blogs

How Node.js Handles Multiple Requests with a Single Thread

URL Parameters vs Query Strings in Express.js

Sessions vs JWT vs Cookies: Understanding Authentication Approaches

Node.js Async: Callbacks to Promises

Linux File System Hunting

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Sajjad Ali

About

Available for

Sajjad Ali's blogs

How Node.js Handles Multiple Requests with a Single Thread

URL Parameters vs Query Strings in Express.js

Sessions vs JWT vs Cookies: Understanding Authentication Approaches

Node.js Async: Callbacks to Promises

Linux File System Hunting