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Mastering Array Patterns for Technical Interviews

A comprehensive guide to the 10 most important array patterns in Data Structures and Algorithms.

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Table of Contents

1. Introduction
2. Pattern 1: Traversal

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NoSQL and MongoDB Interview Preparation Guide

Table of Contents

1. Introduction to NoSQL
   • What is NoSQL?
   • Why NoSQL?
   • CAP Theorem
   • BASE vs ACID

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Java Exceptions: Checked, Unchecked, and User-Defined

Table of Contents

1. Introduction to Exceptions
2. Exception Hierarchy
3. Checked Exceptions
   • What are Checked Exceptions?
   • Common Checked Exceptions

• Handling Checked Exceptions

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title	description	author	date
Top 150+ Java Interview Questions & Answers	Comprehensive guide to Java interview questions categorized by topic	Technical Interview Prep	2026-02-13

Top 150+ Java Interview Questions & Answers

Table of Contents

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SQL Complete Interview Preparation Guide 🎯

Master SQL with 150+ Problems, Solutions & Concepts

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Table of Contents

1. SQL Basics & Fundamentals
2. SELECT Queries & Filtering
3. Aggregate Functions & GROUP BY

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Java Streams Complete Guide 🚀

Master Java Streams API with 100+ Problems & Solutions

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Table of Contents

1. Stream Basics (Warm-up)
2. Mapping & Transformation
3. Filtering & Matching

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Understanding libuv: The Heart of Node.js Event Loop

Introduction

libuv is a multi-platform support library with a focus on asynchronous I/O. Originally developed for Node.js, it has become the foundation that powers Node.js's event-driven, non-blocking I/O model. Understanding libuv is crucial to understanding how Node.js handles concurrency and achieves high performance.

What is libuv?

libuv is a C library that provides:

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Node.js Interview Preparation Guide

https://vimeo.com/856341807?fl=pl&fe=cm : Node.js Event Loop

https://gist.github.com/carefree-ladka/b134007f6749fc3bf743fcdd5013ce6a : Libuv

Table of Contents

1. Core Concepts

• What is Node.js?

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HashMap Internals: Deep Dive with Diagrams

Table of Contents

1. Introduction
2. Internal Structure
3. Hashing Mechanism
4. Collision Resolution
5. Put Operation
6. Get Operation
7. Resizing and Rehashing

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🔐 Web Security Checklist (Frontend + Web Apps)

Use this as a practical security checklist before shipping to production.

Table of Contents

1. Transport & Network
2. Authentication & Authorization
3. Cookies & Storage
4. Input Validation & XSS