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PPrajjvalprajjval.hashnode.dev

Hashing Explained: From Collisions to Real-World Trade-Offs

3d ago · 6 min read · Most people hear this: Hashing gives O(1) lookup. And suddenly hashing becomes some magical data structure that solves everything. Not really. Hashing is one of the most widely used techniques in so

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PAPixel and Codelearning-data-structures.hashnode.dev

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Arrays

May 21 · 8 min read · An array is a linear data structure used to store a group of elements of the same data type together in a single variable. These elements are stored in continuous (contiguous) memory locations, and ea

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SGShikhar Guptathecleancommit.hashnode.dev

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Spread vs Operators in JavaScript

Apr 22 · 4 min read · In the previous blog, we learned about destructuring and how it helps extract values cleanly from arrays and objects. Now we move into something that looks very similar but behaves differently dependi

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SGShikhar Guptathecleancommit.hashnode.dev

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Array Methods You Must Know in JavaScript

Apr 21 · 5 min read · In the previous blog, we understood what arrays are and how they work. You saw how to: store multiple values access them using index add and remove elements But that was just the beginning. Real-

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SKShubham Kumar Singhblog.realdev.club

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Cyclic Sort

Apr 9 · 4 min read · Problem Idea You are given an array of size n containing numbers from 1 to n. Your task:Place every number at its correct index Core Idea (Think Like This) “If the current number is not at its correc

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KRkumar Rishabhkumar-rishabh.hashnode.dev

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Map and Set in JavaScript (When Objects & Arrays Aren’t Enough)

Apr 9 · 2 min read · At first, we mostly use objects and arrays in JavaScript. But after a point, they start feeling a bit limited.That’s where Map and Set come in. What is Map A Map is a collection of key-value pairs. L

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STShubham Tiwarimodernjavascript.hashnode.dev

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New Tactical Formations: Mastering Map and Set in JS 🏟️

Mar 25 · 3 min read · Welcome to Match Day 5 of JavaScript: The Champions League Series 🏆. Until now, we’ve relied on Objects and Arrays to handle our data. But as the game gets faster and the data gets more complex, stan

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BMBaijnath Mahtodsapractise.hashnode.dev

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Graph Algorithms

Feb 15 · 9 min read · Complete Graph Problems & Resources Guide February 2, 2026 · 14 min read Hey everyone! I've been working on graph problems for both tech interviews and competitive programming, and I wanted to share a comprehensive guide that covers both aspects. Man...

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BMBaijnath Mahtodsapractise.hashnode.dev

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Binary Search

Feb 15 · 10 min read · Complete Binary Search Problems & Resources Guide Hey everyone! Binary Search is one of the most elegant and powerful techniques in DSA, yet it's often underestimated. I've spent considerable time mastering binary search for both tech interviews and ...

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BMBaijnath Mahtodsapractise.hashnode.dev

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Complete Greedy Problems & Resources Guide

Feb 15 · 11 min read · Greedy Hey everyone! Greedy algorithms are one of the most elegant and intuitive problem-solving paradigms in computer science. I've spent years mastering greedy techniques for both interviews and competitive programming, and I want to share a comple...

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#datastructure

Trending tags this week

Hashing Explained: From Collisions to Real-World Trade-Offs

Arrays

Spread vs Operators in JavaScript

Array Methods You Must Know in JavaScript

Cyclic Sort

Map and Set in JavaScript (When Objects & Arrays Aren’t Enough)

New Tactical Formations: Mastering Map and Set in JS 🏟️

Graph Algorithms

Binary Search

Complete Greedy Problems & Resources Guide