Day 29 of #100DaysOfCode Another learning day : some of the most powerful JavaScript array methods used in full-stack development: Covered: • map() – transform data • filter() – select specific values • reduce() – combine into one result These are extremely useful when working with API responses, database results, and React UI rendering. #FullStackDevelopment #JavaScript #LearningInPublic #WebDevelopment
Mastering JavaScript Array Methods for Full Stack Development
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Revisiting some important JavaScript Web API concepts today to strengthen my fundamentals. Here’s a quick summary of what I revised: • DOM APIs – manipulating elements using methods like querySelector() • Event Handling – handling user interactions with addEventListener() • Timer Functions – understanding setTimeout() and setInterval() • Network APIs – making requests using fetch() and XMLHttpRequest I also reviewed how the JavaScript Event Loop works behind the scenes: • How the Call Stack executes synchronous code first • How asynchronous tasks move to Microtask Queue (Promises) and Macrotask Queue (setTimeout, events, fetch) • Why Microtasks get higher priority than Macrotasks • How the Event Loop continuously checks the stack and queues to manage execution Understanding these concepts really helps in writing better asynchronous JavaScript and debugging real-world applications. Grateful to Devendra Dhote for the guidance and clear explanations during the learning process. #JavaScript #WebDevelopment #AsyncJavaScript #EventLoop #Promises #FrontendDevelopment #LearningInPublic #WebAPIs
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TypeScript is a strongly typed superset of JavaScript developed by Microsoft. It adds static typing and advanced features to JavaScript, then compiles down to plain JavaScript that runs anywhere. 🔹 Why Use TypeScript? ✅ 1. Static Typing Catch errors at compile time instead of runtime. let age: number = 25; age = "twenty"; // ❌ Error ✅ 2. Better Code Quality Autocomplete IntelliSense Refactoring support Cleaner large-scale applications ✅ 3. OOP & Modern Features Supports: Interfaces Enums Generics Access modifiers (public/private/protected) Decorators 🔹 Basic Example JavaScript function add(a, b) { return a + b; } TypeScript function add(a: number, b: number): number { return a + b; } 🔹 Key Concepts FeatureDescriptionTypesnumber, string, boolean, any, unknownInterfacesDefine object structureEnumsNamed constant valuesGenericsReusable components with flexible typesType Inference #TypeScript #JavaScript #WebDevelopment #FrontendDevelopment #BackendDevelopment
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Just published a new blog on JavaScript Arrays 🚀 Arrays are one of the most commonly used data structures in JavaScript, but understanding how they actually work makes writing cleaner and more efficient code. In this post I covered: • How arrays are created in JavaScript • How they store and manage data • Basic operations developers use every day This article is part of my effort to revisit JavaScript fundamentals and document the learning along the way. If you're learning JavaScript or refreshing your basics, this might be helpful. #javascript #webdevelopment #programming #frontend #developers url - https://lnkd.in/d7kAfXpf Chai Aur Code Akash Kadlag Barun Tiwary @jay Hitesh Choudhary Piyush Garg
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𝗗𝗮𝘆 𝟯 𝗼𝗳 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 🚀 Today I explored 𝗠𝗲𝗺𝗼𝗿𝘆 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗶𝗻 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁, and it was eye-opening! Here’s what I learned about how memory is organized: • 𝗦𝘁𝗮𝗰𝗸 – stores primitive values like numbers and strings, with fast access • 𝗛𝗲𝗮𝗽 – stores objects, arrays, and reference types, which are larger and more flexible • 𝗦𝗠𝗜 (Small Integers) – a clever optimization where JavaScript stores small numbers efficiently to save memory and improve performance Understanding these concepts gives me a deeper appreciation for how JavaScript works under the hood and helps me write cleaner, more efficient code. #JavaScript #WebDevelopment #100DaysOfCode #LearningJourney #FrontendDevelopment
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💻 JavaScript Intermediate – Remove Duplicates from an Array Duplicates in arrays can cause bugs or unnecessary processing. Here's a clean way to remove them. 📌 Problem: Get an array containing only unique values. JavaScript code function removeDuplicates(arr) { return [...new Set(arr)]; } console.log(removeDuplicates([1, 2, 2, 3])); 📤 Output: [1, 2, 3] 📖 Explanation: • Set automatically stores unique values only. • Spread operator ... converts it back to an array. 💡 Tip: Use this for data cleaning, API responses, or user inputs. #JavaScript #Coding #WebDevelopment #FrontendDevelopment #LearnToCode #ProgrammingTips
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🚀 Day 924 of #1000DaysOfCode ✨ Sorting in JavaScript — Beyond Just `.sort()` Sorting looks simple at first — just call `.sort()` and you’re done, right? Not exactly. In today’s post, I’ve explained sorting in JavaScript in a clear and practical way. From how the default sorting works to how custom compare functions change behavior, everything is broken down so you can confidently sort numbers, strings, and even complex objects. If you’ve ever been surprised by unexpected sorting results, this post will help you understand why that happens. 👇 What’s the most complex data you’ve had to sort in JavaScript? #Day924 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #Next #CodingCommunity
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🚀 Day 83 of My #100DaysOfCode Challenge Today I explored another modern JavaScript feature — Nullish Coalescing Operator (??). When working with applications, sometimes a variable may contain null or undefined. In those situations, developers often need to provide a fallback or default value so the application continues to work smoothly. The Nullish Coalescing Operator helps handle this case in a clean and reliable way. Example let userName = null; let displayName = userName ?? "Guest"; console.log(displayName); Output Guest Key Idea The ?? operator only uses the default value when the left side is null or undefined. This makes it different from the || operator, which treats values like 0, false, or empty strings as false. Why it matters • Makes code easier to understand • Helps handle missing data safely • Commonly used when working with APIs and user data Exploring these modern JavaScript features is helping me write cleaner and more reliable code every day. 💻 #Day83 #100DaysOfCode #JavaScript #WebDevelopment #LearningInPublic #CodingJourney
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🚀 A JavaScript this Behavior That Surprised Me Consider this code: const user = { name: "Inderpal", greet() { console.log(this.name); } }; const greetFn = user.greet; greetFn(); Expected: Inderpal Actual output: undefined Why? Because this in JavaScript is not determined where a function is written. It’s determined by how the function is called. When we did: user.greet() this referred to user. But when we did: const greetFn = user.greet; greetFn(); The function lost its object context. So this became undefined (in strict mode) or the global object. ✅ One way to fix this is using bind: const greetFn = user.greet.bind(user); greetFn(); Now this will always refer to user. In JavaScript, understanding how this works is more important than memorizing syntax. #javascript #frontenddeveloper #webdevelopment #coding #softwareengineering
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One concept that has completely changed how I understand JavaScript is asynchronous code. JavaScript runs from top to bottom, but only for synchronous code. Synchronous code runs line by line. Each task must finish before the next one starts. But asynchronous code allows JavaScript to start a task and move on without waiting for it to finish. For example: When fetching data from an API or using setTimeout, JavaScript doesn’t block everything. It continues running other code while waiting for the result. This is how applications stay responsive. What really clicked for me is; JavaScript is single-threaded, but non-blocking. It uses: • The call stack • Web APIs • The callback queue • The event loop to handle asynchronous operations behind the scenes. Without asynchronous programming, there's: – No smooth user interactions – No API requests – No dynamic web apps Still learning. Still building. #JavaScript #WebDevelopment #LearningInPublic #FrontendDevelopment #TechJourney #Growth
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If you don’t understand the Event Loop, you don’t fully understand JavaScript. After deeply studying how the JavaScript engine actually works — Call Stack, Web APIs, Microtasks, Macrotasks, and Promises — I wrote a complete breakdown explaining the real internal execution flow. This is not just theory. It’s the foundation of async JavaScript. If you're preparing for interviews or want to master JS internals, this will help.
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