🚀 Frontend DSA 10 - 💥 JavaScript Polyfill: Array.prototype.map() JavaScript’s built-in Array.prototype.map() method creates a new array by calling a provided callback function on every element in the calling array. Let’s write a polyfill that mimics this behavior and call it myMap(). ✅ Working Solution: const test = [1, 2, 3, 4, 5, 6, 7, 8, 8,
Recursion / Function 🚀 Frontend DSA 9 - 🧠JavaScript Currying: Flexible Argument Pattern for Sum Function Currying is a functional programming technique where a function of multiple arguments is transformed into a sequence of unary functions. This article explores a more advanced, flexible curry function that: * Allows partial application of arguments * Works for any calling pattern * Returns the final result only when sufficient arguments are provided
🚀 Frontend DSA 8 - 🔄 Currying in JavaScript: Define a Chainable Sum Function Without Final () JavaScript offers powerful flexibility when it comes to function chaining, currying, and type coercion. In this guide, we'll implement a function sum() that can be called repeatedly like this: sum(0)(1)(2)(3)(4)(5) ➞ 15 Notice: No final () required! 🤯 ✅ Problem Statement Write a function such that:
Recursion / Function 🚀 Frontend DSA 7 - 🧮 Currying in JavaScript: Create a Sum Function with Infinite Calls Ending with () Currying is a powerful and elegant technique in JavaScript used to transform functions with multiple arguments into a sequence of functions, each taking a single argument. In this guide, we’ll build a recursive curried sum function that allows you to call: sum(1)(2)(3)(4)(5)(); // ➞ 15 Let’
🚀 Frontend DSA 6 - 🧩 Flatten Deep Nested JavaScript Objects into Dot Notation ('a.b': 1 Style) One common pattern in modern JavaScript development, especially when working with deeply nested APIs, configs, or JSON data, is flattening nested objects into a dot notation format like: { 'a.b': 1, 'e.f.g': 2, 'e.f.h': 3 } In this article, we'
🚀 Frontend DSA 5 - 📊 How to Sum Values in a Singly Linked List in JavaScript (Recursive Approach) Singly linked lists are a fundamental data structure every JavaScript developer should understand. They’re used in everything from memory-efficient data storage to implementing queues and stacks. 🚀 In this article, you'll learn how to traverse and sum all values in a singly linked list using a recursive approach
🚀 Frontend DSA 4 - 🔀 How to Shuffle an Array Randomly in JavaScript (Fisher-Yates Explained) Ever wanted to shuffle an array like a deck of cards? 🎴 Whether you're building a quiz app, a game, or need random ordering, shuffling arrays is a must-have trick in your JavaScript toolbox. 🚀 Let’s break down a clean and beginner-friendly way to shuffle any array using JavaScript.
🚀 Frontend DSA 3 - 🔍 How to Flatten a Nested Array in JavaScript up to a Given Depth Working with deeply nested arrays in JavaScript can be tricky, especially when you want to flatten them to a specific depth. Thankfully, you can build your own custom array flattener with just a few lines of code! 🧩 In this tutorial, we’ll break down how to flatten a nested array
🚀 Frontend DSA 2 -⚡Supercharge Your JavaScript Functions with Caching (Memoization) Are your JavaScript functions doing redundant work with the same inputs over and over again? 🤔 That’s where caching (also called memoization) steps in to save time and resources! In this tutorial, you’ll learn how to create a JavaScript caching utility that can wrap any function and return cached
🚀 Frontend DSA 1 - 🪜 Master JavaScript Method Chaining with a Fun Ladder If you're diving into JavaScript and want to level up your object and method skills, then method chaining is a concept you must know! Let’s explore it with a fun and beginner-friendly example: a ladder object where we can call methods like: ladder.up().up().down().showStep(