Explaining JavaScript Prototype Object

🚀 TIL in JavaScript typeof null returns "object" 🤯 Yes, this is real — and it’s one of the oldest JavaScript quirks. 🧠 null means no value, but JavaScript still treats it as an "object" due to a historical bug. Example: ✔ typeof 10 → "number" ✔ typeof "JS" → "string" ✔ typeof null → "object" ❌ 📌 Always check null explicitly in real-world code and interviews. #JavaScript #WebDevelopment #FrontendDeveloper #CodingTips #TodayILearned

🚨 One of the most commonly asked JavaScript interview questions — Hoisting Before the code runs, JavaScript sets up memory for variables and functions. • Function declarations are fully hoisted and can be called before they are written • var is hoisted but initialized as undefined • let and const are hoisted but remain inaccessible until declared (TDZ) Understanding hoisting helped me write cleaner and more predictable JavaScript ⚡ #JavaScript #Hoisting #JSInterview #FrontendDevelopment

🔍 Difference Between call(), apply() & bind() in JavaScript Understanding call, apply, and bind is crucial to master how this works in JavaScript ⚡ #JavaScript #JSConcepts #CallApplyBind #ThisKeyword #FrontendDevelopment #WebDevelopment #CodingInterview #JavaScriptTips #LearnJS #DeveloperLife

💡 JavaScript Event Loop 🧠 What is the Event Loop? It decides when synchronous and asynchronous code runs in JavaScript. ⚡ Why do we need it? JavaScript is single-threaded Event Loop handles async tasks without blocking the UI 🧠 Think Like This Call Stack → Task Queue → Microtask Queue → Event Loop 🎯 Interview One-Liner Event Loop keeps JavaScript non-blocking. 📌 Used In setTimeout Promises Async / Await #JavaScript #EventLoop #AsyncProgramming #FrontendDevelopment #InterviewTips

Day (58/100) #100DaysOfWEB Building an Authentication System using JavaScript and LocalStorage. Code: https://lnkd.in/egXytznT Live: https://lnkd.in/ey3Pq9Um #100DaysOfCode #JavaScript #WomenInTech #TorontoTech #SenecaCollege #BuildInPublic #100daysofchallenge

Day 31/100 🚀 Understanding JavaScript errors — syntax, reference, and type errors, how to read error messages, and better ways to debug and resolve issues. #100DaysOfCode #JavaScript #WebDev

The mystery of this keyword in JavaScript The key to understanding this keyword is a clear understanding of function calls and how they affect context. This article focuses on explaining function calls using simple, understandable code snippets, as well as how function calls affect context. #JavaScript #this

🧠 Understanding JavaScript Event Loop – the heart of async JS This visual explains how JavaScript handles asynchronous operations using: ✔ Call Stack ✔ Web APIs ✔ Callback Queue ✔ Event Loop Even though JavaScript is single-threaded, it never blocks — thanks to the event loop ⚡ This concept is 🔑 for cracking JavaScript & React interviews. If you truly understand this, async code stops being scary 😌 #JavaScript #EventLoop #AsyncJavaScript #FrontendDevelopment #WebDevelopment #ReactJS #InterviewPreparation #LearningInPublic

JavaScript Notes to Escape Tutorial Hell (13/20) What is the difference between a Function Statement and a Function Expression? If you think it's just syntax preference, you might fail the hoisting interview question. This deck clears up the confusion around the many ways to define a function in JS. This deck explains: - Why function declarations and function statements are the same - What function expressions are and how hoisting affects them - What anonymous functions really mean (and where they’re used) - What named function expressions are (and why the name isn’t global) - The difference between parameters and arguments - What first-class functions mean in JavaScript If functions feel inconsistent in JavaScript, this deck connects the dots. #JavaScript #WebDevelopment #FirstClassFunctions #Hoisting #CodingJourney #SoftwareEngineering #InterviewPrep #FrontendDeveloper

How does JavaScript handle memory? JS uses garbage collection to remove unused objects, preventing memory leaks. But developers must avoid circular references and lingering listeners. #WebPerformance #JavaScript