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@prashsainidev

Prashant Saini

@prashsainidev

Building useful web stuff while sharing what I learn

AligarhJoined February 2026

About

IT graduate 2024. Learning software and web development in public. Writing about bugs, fixes, small projects, useful tools, and lessons from building things step by step.

Available for

· Internships · Small freelance projects · Collaboration

Prashant Saini's blogs

Chaicode Web Development Cohort 2.0 (2026): My Full-Stack Journey | Prashant Sainiprashsainidev.hashnode.dev55 posts

Chaicode Mobile App Development Cohort (2026)prashsainidev-mobile-dev.hashnode.dev1 post

About

IT graduate 2024. Learning software and web development in public. Writing about bugs, fixes, small projects, useful tools, and lessons from building things step by step.

Available for

· Internships · Small freelance projects · Collaboration

Prashant Saini's blogs

Chaicode Web Development Cohort 2.0 (2026): My Full-Stack Journey | Prashant Sainiprashsainidev.hashnode.dev55 posts

Chaicode Mobile App Development Cohort (2026)prashsainidev-mobile-dev.hashnode.dev1 post

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PSPrashant Sainiinprashsainidev.hashnode.dev

Storing Uploaded Files and Serving Them in Express

2d ago · 5 min read · Introduction Uploading a file is only the beginning. After a file reaches the server, the next important questions are: where is it stored? how do we access it later? how can Express serve it throu

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PSPrashant Sainiinprashsainidev.hashnode.dev

Handling File Uploads in Express with Multer

2d ago · 4 min read · Introduction Handling text form data in Express is one thing. Handling file uploads is another. The moment images, PDFs, or documents enter the picture, normal request parsing is not enough. That is w

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PSPrashant Sainiinprashsainidev.hashnode.dev

Sessions vs JWT vs Cookies: Understanding Authentication Approaches

2d ago · 5 min read · Introduction One of the most confusing beginner auth topics is this: people often hear sessions, cookies, and JWT as if they are all competing versions of the same thing. But they are not exactly the

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PSPrashant Sainiinprashsainidev-mobile-dev.hashnode.dev

How React's Virtual DOM Works Under the Hood

2d ago · 12 min read · How React's Virtual DOM Works Under the Hood Introduction Let me guess. You have heard the phrase "Virtual DOM" thrown around so many times that it has started to feel like a magic spell. React is fas

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PSPrashant Sainiinprashsainidev.hashnode.dev

JWT Authentication in Node.js Explained Simply

2d ago · 5 min read · Introduction Authentication is one of the first serious backend ideas most learners meet. The core question is simple: how does the server know who the user is? One common answer in modern backend sys

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