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#basics

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SRSrushti Ranebackendsimplified.hashnode.dev

Inside a Web Server: From TCP to Threads, Event Loops, and Workers

When developers say “server”, they often mean different things: A machine A cloud instance Tomcat Node Rails Apache But what is a server, really? This article breaks it down from first principles and then explores how different ecosystems (Ja...

Feb 164 min read

SCShravan Chaudharishrvn.hashnode.dev

Understanding HTML Tags and Elements: A Complete Beginner's Guide

HTML is the foundation of every website you visit. When you open a browser and see text, images, buttons, and forms on a webpage, all of that structure comes from HTML. Think of HTML as the skeleton of a webpage. Just like your skeleton gives your bo...

Feb 158 min read

ARAmi Ranaamirana.hashnode.dev

CSS Selectors 101: Targeting Elements with Precision

Let's imagine you have built a house but not done the paint. How would it look like? You won't feel home right? You would like to paint and decorate your house to make it a home. Similarly, if you know HTML and you build a page just with the HTML, ho...

Feb 154 min read

VValueChainOperationvaluechainoperation.hashnode.dev

XOR / Hash fumction(In Rust)

Learning with Gemini. Today I learned about Hash function and XOR math theorem that connects security and probability. I learned with gemini and Dan boneh's lecture cryptography (which I didn't understand so I had to watch it twice). It was very smal...

Feb 121 min read

LGLOKESH GHOSHilokeshghosh.hashnode.dev

TCP Working: 3-Way Handshake & Reliable Communication

What is TCP and why it is needed TCP TCP is communication protocol It is used when correctness matters over speed. Ordered delivery No missing data No duplicated data Reliable communication Ex : Sending email, Back transaction Why TCP Data ...

Feb 122 min read

LGLOKESH GHOSHilokeshghosh.hashnode.dev

DNS Record Types Explained

Overview Suppose I want to call my friend Rahul, But my phone don’t understand ‘Rahul’. It need Rahul’s phone number. So the phone checks the number which is mapped with name ‘Rahul’ in phonebook and then dials it. Same way Browser don’t understand d...

Feb 122 min read

NWNeha Waddispringboot-learning.hashnode.dev

#4 Understanding the Java Stack: JSE → Advanced Java → Maven → Spring Boot

JSE (Core Java) – The Foundation What is JSE? Java Standard Edition provides: OOP concepts Collections Exception handling Multithreading File handling Without Core Java:You cannot understand Spring annotations, beans, or dependency injection. ...

Feb 114 min read

SSSyam Satish Parraymethodsbysyam.hashnode.dev

The Array Chronicles: Decoding the Machinery of Data

Array.prototype.forEach() : forEach() is a method of the Array object, which is an iterative method that executes a provided callBackFn function once for each element in an array in ascending-index order. forEach(callBackFn) forEach(callBackFn, thisA...

Feb 88 min read

AAbundancemypov.hashnode.dev

Simplifying Ethereum

Most times, people new to the ecosystem tend to think Ethereum is just a cryptocurrency, but it is more; it is a programmable blockchain that allows developers to build decentralized applications without relying on a central authority. To truly unde...

Feb 54 min read

AKAryan Kumartechnowledge.hashnode.dev

Basic of WebSocket

WebSocket WebSocket is a communication protocol that enables a full-duplex connection between a client and a server over a single persistent TCP connection. It allows both parties to send messages independently at any time without needing to re-estab...

Feb 15 min read

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