--- title: "#datastructure articles | Hashnode" description: "Explore 250 articles tagged #datastructure on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/datastructure" --- Tag # #datastructure 250 posts · 31 followers [Manikandan S](https://hashnode.com/@manikandan4411) · [Oct 21](https://hashnode.com/posts/linkedhashmap-in-java/6ad83a2c9d113e0cb5f9f2ea) ### [LinkedHashMap in Java](https://manikandan4411.hashnode.dev/linkedhashmap-in-java?utm_source=hashnode&utm_medium=feed) Author by Manikandan S - 21st October 2026 5 min read · [manikandan4411.hashnode.dev](https://manikandan4411.hashnode.dev/linkedhashmap-in-java?utm_source=hashnode&utm_medium=feed) [Abirami Sri](https://hashnode.com/@abiramisri) · [Sep 3](https://hashnode.com/posts/day-4-of-my-30-day-dsa-journey-hashing-problems/6a99b28918d4d96320ad472a) ### [Day 4 of My 30-Day DSA Journey — Hashing Problems](https://abi-blog.hashnode.dev/day-4-of-my-30-day-dsa-journey-hashing-problems?utm_source=hashnode&utm_medium=feed) Day 4 of my DSA journey with JavaScript: solving Majority Element and First Unique Character using hashing and frequency counting. 10 min read · [abi-blog.hashnode.dev](https://abi-blog.hashnode.dev/day-4-of-my-30-day-dsa-journey-hashing-problems?utm_source=hashnode&utm_medium=feed) [Alex Mateo](https://hashnode.com/@alexmateo) · [Jun 22](https://hashnode.com/posts/you-learned-the-7-patterns-the-hard-problems-combine-them/6a38fc5d93daa5b20660df74) ### [You Learned the 7 Patterns. The Hard Problems Combine Them.](https://alexmateo.hashnode.dev/you-learned-the-7-patterns-the-hard-problems-combine-them?utm_source=hashnode&utm_medium=feed) You drilled the 7 patterns. Real interviews stack two at a time. Here's how to see the layers. 7 min read · [alexmateo.hashnode.dev](https://alexmateo.hashnode.dev/you-learned-the-7-patterns-the-hard-problems-combine-them?utm_source=hashnode&utm_medium=feed) [Prajjval](https://hashnode.com/@prajjval-14) · [May 31](https://hashnode.com/posts/hashing-explained-from-collisions-to-real-world-trade-offs/6a1c1e7899cfcad53bb2dac3) ### [Hashing Explained: From Collisions to Real-World Trade-Offs](https://prajjval.hashnode.dev/hashing-explained-from-collisions-to-real-world-trade-offs?utm_source=hashnode&utm_medium=feed) \- Prajjval 6 min read · [prajjval.hashnode.dev](https://prajjval.hashnode.dev/hashing-explained-from-collisions-to-real-world-trade-offs?utm_source=hashnode&utm_medium=feed) [Pixel and Code](https://hashnode.com/@PixelandCode) · [May 21](https://hashnode.com/posts/arrays/6a0f1c07d8e265f60d266c86) ### [Arrays](https://learning-data-structures.hashnode.dev/arrays?utm_source=hashnode&utm_medium=feed) Understanding Arrays and Their Operations in Data Structures 8 min read · [learning-data-structures.hashnode.dev](https://learning-data-structures.hashnode.dev/arrays?utm_source=hashnode&utm_medium=feed) [Shikhar Gupta](https://hashnode.com/@shiikharrr) · [Apr 22](https://hashnode.com/posts/spread-vs-operators-in-javascript/69e86a75e436727814e7c70e) ### [Spread vs Operators in JavaScript](https://thecleancommit.hashnode.dev/spread-vs-operators-in-javascript?utm_source=hashnode&utm_medium=feed) Understanding the Same Syntax with Different Powers 4 min read · [thecleancommit.hashnode.dev](https://thecleancommit.hashnode.dev/spread-vs-operators-in-javascript?utm_source=hashnode&utm_medium=feed) [Shikhar Gupta](https://hashnode.com/@shiikharrr) · [Apr 21](https://hashnode.com/posts/array-methods-you-must-know-in-javascript/69e79185e4367278145be486) ### [Array Methods You Must Know in JavaScript](https://thecleancommit.hashnode.dev/array-methods-you-must-know-in-javascript?utm_source=hashnode&utm_medium=feed) Learn the most important JavaScript array methods like map, filter, reduce, find, and more with simple examples to write cleaner and smarter code. 5 min read · [thecleancommit.hashnode.dev](https://thecleancommit.hashnode.dev/array-methods-you-must-know-in-javascript?utm_source=hashnode&utm_medium=feed) [Shubham Kumar Singh](https://hashnode.com/@shubhamsinghbundela) · [Apr 9](https://hashnode.com/posts/cyclic-sort/69d7849ffa7251682e8cbca7) ### [Cyclic Sort](https://shubhamsinghbundela.hashnode.dev/cyclic-sort?utm_source=hashnode&utm_medium=feed) Learn Cyclic Sort with a simple step-by-step explanation. 4 min read · [shubhamsinghbundela.hashnode.dev](https://shubhamsinghbundela.hashnode.dev/cyclic-sort?utm_source=hashnode&utm_medium=feed) [kumar Rishabh](https://hashnode.com/@kumar-rishabh) · [Apr 9](https://hashnode.com/posts/map-and-set-in-javascript-when-objects-arrays-aren-t-enough/69d76314fa7251682e6952e7) ### [Map and Set in JavaScript (When Objects & Arrays Aren’t Enough)](https://kumar-rishabh.hashnode.dev/map-and-set-in-javascript-when-objects-arrays-aren-t-enough?utm_source=hashnode&utm_medium=feed) Learn what Map and Set are in JavaScript, their differences from objects and arrays, and when to use them with simple examples. 2 min read · [kumar-rishabh.hashnode.dev](https://kumar-rishabh.hashnode.dev/map-and-set-in-javascript-when-objects-arrays-aren-t-enough?utm_source=hashnode&utm_medium=feed) [Shubham Tiwari](https://hashnode.com/@kilroy47) · [Mar 25](https://hashnode.com/posts/new-tactical-formations-mastering-map-and-set-in-js/69c3a4038a263e79cb11ffd3) ### [New Tactical Formations: Mastering Map and Set in JS 🏟️](https://modernjavascript.hashnode.dev/new-tactical-formations-mastering-map-and-set-in-js?utm_source=hashnode&utm_medium=feed) Learn the difference between Map vs Object and Set vs Array. Master unique collections and advanced key-value storage in ES6 JavaScript. 3 min read · [modernjavascript.hashnode.dev](https://modernjavascript.hashnode.dev/new-tactical-formations-mastering-map-and-set-in-js?utm_source=hashnode&utm_medium=feed)