Category: JavaScript
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Breaking the Loop: Implementing the Circuit Breaker Pattern in Node.js with Fastify
If you’ve ever built an app that talks to other services—an API, a database, or a third-party provider—you’ve probably faced this: Everything works fine until that external service slows down… or worse, goes offline. Suddenly your app is stuck, retrying requests that will never succeed. Users wait forever. Your logs explode. Your server eats CPU…
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Binary Trees 101: Building, Traversing, and Searching
If you’ve spent any time around computer science, you’ve probably heard the term binary tree. They pop up everywhere—databases, file systems, even machine learning models. But what exactly are they, and why do developers love them so much? In this post, we’ll break down binary trees in plain language, explore their key features, and walk…
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Min-Heap, Max-Heap, Done: A Friendly Guide to Priorities
Data structures play a vital role in computer science, providing efficient storage, retrieval, and manipulation of data. Among the myriad data structures available, heaps stand out as versatile and powerful options. Heaps are tree-based data structures that prioritize the order of elements based on a defined property. They offer efficient operations for insertion, deletion, and…
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Rows × Columns: A Friendly Guide to Matrix Data
Matrices are fundamental data structures used to represent and manipulate multidimensional data in various fields of computer science, mathematics, and engineering. They provide an organized way to store and perform operations on data arranged in rows and columns. In this extensive article, we delve into the world of matrices, exploring different matrix data structures, their…
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Think FIFO: A Friendly Guide to Queues
Data structures form the backbone of efficient data organization and manipulation in computer science and programming. Among the diverse range of data structures available, queues stand out as a powerful and versatile option. Queues adhere to the First-In-First-Out (FIFO) principle, making them ideal for managing tasks, scheduling processes, and implementing breadth-first search algorithms. In this…
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Push, Pop, Repeat: Stacks Explained
Data structures play a vital role in computer science, enabling efficient storage, retrieval, and manipulation of data. Among the myriad data structures available, stacks stand out as a powerful and versatile option. Stacks follow the Last-In-First-Out (LIFO) principle, making them ideal for managing function calls, handling recursive algorithms, and implementing undo-redo functionality. In this extensive…
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From Bubble to Quick: A Friendly Guide to Sorting
Table of Contents Introduction Sorting is a fundamental operation in computer science, enabling efficient organization and arrangement of data in a specific order. The selection of appropriate sorting algorithms and data structures is crucial to optimize the sorting process for different requirements and constraints. In this extensive article, we embark on a comprehensive journey into…
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Think Recursively: Solving Towers of Hanoi the Easy Way
The Towers of Hanoi is a classic mathematical puzzle that has captivated minds for centuries. In this article, we will explore the intriguing history, rules, and strategies behind this timeless puzzle. We will dive into the recursive algorithm used to solve it, understand its complexity, and explore variations that add a new twist to the…
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From Guessing to Knowing: Build a Sudoku Solver
Sudoku is a popular number puzzle that challenges players to fill a 9×9 grid with digits from 1 to 9. The objective is to ensure that each row, column, and 3×3 subgrid contains all the numbers from 1 to 9 without repetition. Solving Sudoku puzzles can be both challenging and rewarding, requiring logical deduction and…
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Same Letters, New Word: Building a Solid Anagram Checker
Anagrams are fascinating word puzzles that captivate our minds with their ability to rearrange letters and form new words. In the world of computer science and programming, anagram-related challenges have gained popularity due to their relevance in various applications. In this article, we will explore the concept of anagrams, understand their significance, and dive into…