Implementing Priority Queue in JavaScript for Efficient Task Management

🚀 New Video Alert! Just uploaded a new video on my YouTube channel — CodingMeAaja 🎥 This time, I explained one of the most confusing but important JavaScript topics 👇 Pass by Value vs Pass by Reference in JavaScript In this video, I’ve shown how JavaScript actually handles data — why const objects can still be modified, and how this can cause unexpected bugs in real-world projects. I also shared a real example that I personally faced during development — something every developer runs into at some point. What you’ll learn: 👉 The difference between value and reference in memory 👉 Why const objects can still be changed 👉 How passing objects to functions really works 👉 A real-world case that caused confusion 👉 How to avoid data mutation bugs This video is part of my Everyday JavaScript Topics 💡 playlist — where I share small, practical concepts that actually help in daily development. #JavaScript #CodingMeAaja #WebDevelopment #Coding #Learning #Frontend #Backend #SoftwareEngineering #Nodejs https://lnkd.in/gq7ZzWTQ

🚀 Day 90/90 – #90DaysOfJavaScript Topic covered: Error Handling in JavaScript (throw, try...catch, finally) ✅ throw Statement 👉 Used to manually trigger an error 👉 Expression can be: String, Number, Object, Instance of an Error (Error, TypeError, RangeError, etc.) 👉 Stops normal execution & transfers control to nearest catch ✅ try...catch Block 👉 Used to handle runtime errors gracefully 👉 Prevents program crash 👉 Catch block receives the thrown error object 👉 Validate inputs or stop unwanted execution using throw ✅ finally Block 👉 Executes always, whether error occurs or not 👉 Useful for cleanup actions 🎯 Key Takeaways 👉 throw → manually raise custom errors 👉 try...catch → handle exceptions safely 👉 finally → runs always (cleanup) 👉 Use meaningful error messages for debugging clarity 🛠️ Access my GitHub repo for all code and explanations: 🔗 https://lnkd.in/dWPSFUtZ Let’s learn together! Follow my journey to #MasterJavaScript in 90 days! 🔁 Like, 💬 comment, and 🔗 share if you're learning too. #JavaScript #WebDevelopment #CodingChallenge #Frontend #JavaScriptNotes #MasteringJavaScript #GitHub #LearnInPublic

Day 4 of #30DaysOfJavaScript: Mastering Array Transformations Without .map() 🚀 Today’s task was about thinking beyond built-in methods by writing a custom function to transform every element of an array, similar to how .map() works in JavaScript — but doing it all manually! My solution involved iterating over the input array and applying a transformation function to each element, building up a new array with the results: What I learned today: Reinforced fundamentals of array traversal and callback functions. Understood how helpful built-in methods like .map() are—and exactly how they work under the hood. Practiced writing cleaner, modular, and reusable code. Challenging myself with these basics is already making my JavaScript much stronger! On to Day 5 🔥 Are you also on a coding challenge journey? Let’s connect and learn together! #JavaScript #CodingChallenge #WebDevelopment #LearningByDoing #LeetCode #ProblemSolving #TechCommunity

New Video in our DSA in JavaScript Series! In this video, we continue our Queue chapter — and learn how to implement a Queue using Array in JavaScript step by step You’ll clearly understand how the FIFO (First In, First Out) principle works in real code, and how to perform all the core operations of a Queue - Implement Queue using Array - enqueue() → Add element at rear - dequeue() → Remove element from front - peek(), isEmpty(), isFull() → Utility operations - Practical demo and explanation in VS Code We’ll also discuss how the front and rear pointers change with each operation, and understand why removed elements are not deleted from the array — only skipped logically. By the end of this video, you’ll have a working Queue implementation and a solid understanding of how linear queues work in DSA. * Watch here → https://lnkd.in/ghnrpUUb * Watch the complete DSA in JavaScript playlist here: https://lnkd.in/g2qrGaSH * Download the PPT for this topic here: https://lnkd.in/gnfdEiKJ

Tired of the unexpected results that || can give you in javascript? Learn what you can use instead on this week’s tech tip! #CodeHub #TechTips #CodeHacks #NullishCoalescing #JavaScriptTips #DevBytes

🚀 Day 5 of My 30 Days of JavaScript Challenge 🧩 Problem: Apply Transform Over Each Element in Array (LeetCode #2635) Given an integer array arr and a mapping function fn, return a new array such that: newArray[i] = fn(arr[i], i) Solve this without using the built-in Array.map() method. 💻 Language: JavaScript ❓ Question: https://lnkd.in/eq8qYfpb 💡 Solution: https://lnkd.in/eT5U2kBp 🧠 Concepts Used: Higher-order functions (passing functions as arguments) Loops and callback functions Core idea behind how .map() works internally 📚 Takeaway: By recreating the Array.map() method manually, I learned how callback execution and array transformations work under the hood — a must-know for mastering JavaScript fundamentals. #Day5 #JavaScript #30DaysOfCode #LeetCode #CodingChallenge #WebDevelopment #FrontendDevelopment #100DaysOfCode

✨ Day 10 — How JavaScript Code Works Behind The Scenes! ✨ Today, I went beyond the syntax to understand how JavaScript actually executes code behind the scenes — the hidden engine that makes everything run! ⚙️💻 I began by learning about the Execution Context — the environment where JavaScript code runs — and how it’s created in two key phases: Memory Allocation and Execution. 🧠 Then, I explored how Function Call Execution Contexts are formed and managed using the Call Stack and Heap, helping me visualize how JavaScript handles both primitive values and objects in memory. 📚 I also dived deep into Hoisting, understanding why variables declared with var show up as undefined, and how let & const behave differently due to the Temporal Dead Zone. ⚡ Finally, I wrapped up by studying Function Expressions, Hoisting mechanics, and how the JavaScript Interpreter runs code step by step — truly connecting all the dots behind execution! 🚀 This session gave me a crystal-clear understanding of what happens before a single line of JavaScript runs — the real “magic” behind the language! ✨ #Day10 #JavaScript #WebDevelopment #100DaysOfCode #LearningEveryday #CodingJourney #FrontendDevelopment #Hoisting #ExecutionContext #JSBehindTheScenes

🚀 Day 11 of My 30 Days of JavaScript Journey ✅ Challenge: Memoize (LeetCode #2623) The task was to create a memoize(fn) function that caches results so that repeated calls with the same inputs return instantly from cache — without re-executing the original function. This helps improve performance when dealing with expensive computations like fibonacci or factorial, and even simple operations like sum when called repeatedly. 💻 Language Used: JavaScript ❓ Problem Link: https://lnkd.in/gnHmbPih 💡 Solution: https://lnkd.in/gGJZjYY9 🧠 Concept Highlighted: Memoization is a powerful optimization technique that uses caching to avoid repeating calculations. It strengthens understanding of closures, function arguments handling, and performance-oriented JavaScript. #JavaScript #LeetCode #30DaysOfCode #CodingChallenge #WebDevelopment #FrontendDevelopment #Memoization #PerformanceOptimization #LearningEveryday #ProblemSolving

Asynchronous JavaScript: Promises, Async/Await Explained Struggling to understand how JavaScript handles asynchronous operations? 👉 Read the full tutorial on Djamware: https://lnkd.in/gbxQRfWd https://lnkd.in/gaZtn7Mj

JavaScript Unique Magic: Hoisting Definition: Hoisting in JavaScript means moving all variable and function declarations to the top of their scope before the code runs. This allows you to use a function or variable even before it is written in the code. Why It Happens: JavaScript interpreter reads the entire code first and sets up memory for all variables and functions. That why you can access them before their actual line of code appears. Uses: 1) Helps in calling functions before they are defined. 2) Makes code organization flexible. Problems: 1) Can cause confusion for beginners. 2) Variables declared with var become undefined if used before declaration. 3) let and const declarations cause an error if used too early #JavaScriptMagic #CodingTips #LearnJS #FrontendFun #ProgrammingLife #JSBeginners #WebDev #TypeScript #CodeSmart #DeveloperCommunity