JavaScript OOP vs Java/C++: Prototype-Based Inheritance Explained

𝐌𝐨𝐬𝐭 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫𝐬 𝐥𝐞𝐚𝐫𝐧 𝐎𝐛𝐣𝐞𝐜𝐭-𝐎𝐫𝐢𝐞𝐧𝐭𝐞𝐝 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐟𝐫𝐨𝐦 𝐥𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 𝐥𝐢𝐤𝐞 𝐉𝐚𝐯𝐚 𝐨𝐫 𝐂++. But when they start using JavaScript, things suddenly feel different. Why? Because JavaScript does not follow traditional class-based OOP like Java or C++. Instead, it uses a prototype-based inheritance model. In this video, I explain: • Why JavaScript OOP is different • Prototype vs Class concept • How JavaScript actually creates objects behind the scenes • Why many developers get confused with JavaScript OOP If you want to become a better JavaScript / Full Stack developer, understanding this concept is very important. 🎥 Watch the full video here: https://lnkd.in/dyNPYRMu What confused you the most when learning JavaScript OOP? #javascript #oop #javascriptdeveloper #webdevelopment #programming #softwaredeveloper #nodejs #reactjs #coding #learnjavascript #frontenddevelopment #developercommunity

Prototypes in JavaScript : JavaScript doesn’t use traditional class-based inheritance (like Java/C++). Instead, it uses Prototypal Inheritance. 1. Each object has a hidden property called [[Prototype]] 2. It points to another object (its parent/blueprint) This is how inheritance works in JS. - If a property or method is not found in an object, JavaScript looks up the prototype chain to find it. In the example below, admin inherits greet() from user via prototype. #JavaScript #WebDevelopment #FrontendDevelopment #Programming #Coding

Unpopular opinion: JavaScript is easier to start… but harder to truly master than Java. Because JavaScript lets you get away with bad programming habits. Java doesn’t. One hides your mistakes. The other exposes them immediately. That’s why many developers feel “stuck” later. Agree or disagree? #programming #java #javascript #softwareengineering #webdeveloper #growth #developer

🚀 Prototypes in JavaScript — The Backbone of Inheritance JavaScript doesn’t use traditional class-based inheritance (like Java/C++). Instead, it uses Prototypal Inheritance. 👉 Every object in JavaScript has a hidden property called [[Prototype]] 👉 It points to another object, acting as a parent/blueprint 💡 When you try to access a property or method: If it’s not found in the object, JavaScript looks up the prototype chain. Understanding this concept makes you stronger in JavaScript fundamentals and helps in interviews 💯 #JavaScript #WebDevelopment #FrontendDevelopment #Programming #Coding

Advancing in Java Full Stack Development – Daily Training Insights Today I built a stronger understanding of Multithreading in Java and explored Scopes in JavaScript in more depth. These concepts are essential for writing efficient, scalable, and well-structured applications. Multithreading in Java: Multithreading allows multiple threads to run concurrently within a single program, improving performance and responsiveness. Today I learned not just the basics but also deeper concepts like how threads are created using the Thread class and Runnable interface, and why Runnable is preferred for better design and reusability. I also explored the thread lifecycle, which includes states like new, runnable, running, waiting, blocked, and terminated. Understanding these states helps in controlling thread execution effectively. Another important concept I learned is synchronization, which ensures that only one thread accesses a shared resource at a time, preventing issues like race conditions. I also came across problems like deadlocks, where two threads wait for each other indefinitely, and understood why proper thread management is important. Multithreading is widely used in real-world applications such as web servers, background tasks, and real-time systems. Scopes in JavaScript: Scopes in JavaScript define where variables can be accessed within the code. I learned about global scope, where variables are accessible throughout the program, and function scope, where variables are limited to the function they are declared in. I also understood block scope, which is introduced with let and const, allowing variables to be restricted within a block like loops or conditional statements. This helps in avoiding bugs and unexpected behavior. Additionally, I explored how scope is related to concepts like closures, where a function remembers variables from its outer scope even after execution. I also learned about scope chaining, which allows JavaScript to search for variables in parent scopes if they are not found in the current scope. Understanding scope is very important for writing clean, maintainable, and error-free JavaScript code. Continuing my journey of learning Core Java and Web Development step by step every day, focusing on improving my problem-solving skills and building a strong foundation as a developer. #Java #CoreJava #Multithreading #JavaScript #Scopes #WebDevelopment #LearningJourney #Programming #SoftwareDevelopment #100DaysOfCode

As a programmer, many beginners asked me this question: 'Java vs JavaScript, which is better?' Wrong comparison. JavaScript is built for adaptability WHILE Java is built for reliability. JavaScript lets you prototype fast, iterate quickly and pivot without heavy constraints. Perfect for environments where speed, experimentation and rapid delivery matter. Java enforces structure, strong typing and clear architecture, reducing errors as systems grow. That’s why it dominates in large-scale, long-term enterprise systems. One lets you move fast and adjust on the fly WHILE the other forces you to think ahead and build for the future. So the debate isn’t about better. It’s about trade-offs: speed and flexibility OR stability and predictability Which one matters more depends on your context, not the language. So ask yourself: Are you trying to build fast… or build something that won’t break at scale? #programming #javascript #informationtechnology #softwaredeveloper #javascript #webprogramming #IT #coding #informationsystems

💡 Inheritance in Java — More Powerful Than You Think! I used to think inheritance is just about “one class using another class”… But when I actually started applying it, the real power clicked 🔥 👉 Inheritance = Reusability + Clean Design + Real-World Modeling 🚀 Here’s the idea in simple words: One class (child) can use properties and behavior of another class (parent) No need to write the same logic again and again Your code becomes cleaner, shorter, and easier to manage 💭 Real-life analogy: A Car IS A Vehicle A Bike IS A Vehicle That’s exactly how inheritance works in Java! ⚡ Why it matters in real projects: Avoids duplicate code Makes your system scalable Helps in writing maintainable backend systems (especially in Spring Boot 👀) ⚠️ But one important lesson: 👉 Don’t overuse inheritance 👉 Use it only when there is a proper “IS-A” relationship 💬 My takeaway: Inheritance is not just a concept — it’s a design mindset. Once you start thinking in terms of relationships, your code becomes much more structured. #java #programming #backenddevelopment #coding #softwareengineering #100daysofcode #learnjava #developers #oop

🚀 Mastering Constructor Chaining in Java with this() Understanding local chaining (constructor chaining) is a game-changer when writing clean and reusable Java code. 🔹 Local Chaining means calling one constructor from another constructor within the same class using this(). It helps streamline object initialization and reduces code duplication. 📌 Key takeaways: ✔️ this() must always be the first statement inside a constructor ✔️ It enables constructor overloading with better flow control ✔️ Helps in reusing initialization logic across multiple constructors ✔️ Improves readability and maintainability of code ✔️ Prevents redundant assignments and keeps constructors clean ⚙️ How it works: 👉 When an object is created, the constructor call can be redirected using this() 👉 Based on the parameters passed, the appropriate constructor gets executed 👉 The chain continues until a constructor without this() is reached 💡 Also, don’t confuse: 👉 this → Refers to the current object 👉 this() → Calls another constructor 🔥 Why it matters? Local chaining is widely used in real-world applications like model classes, DTOs, and APIs, where multiple ways of object creation are needed with consistent initialization logic. Mastering this concept strengthens your foundation in Java OOP and helps you write more efficient, structured, and professional code. 💻✨ #Java #OOP #Programming #Coding #Developers #Learning #SoftwareDevelopment

Started my journey with automation and programming thinking strongly typed languages already solved many problems. In languages like Java, type safety is already built in. You define a type, and the compiler protects you from many mistakes before the code even runs. But when I started exploring Playwright with TypeScript, one question came to my mind: "If Java already has type safety, why do we need TypeScript again?" Then the learning clicked. 💡 TypeScript is not replacing strongly typed languages. Instead, it brings type safety into the JavaScript ecosystem. For large automation frameworks, this brings several advantages: ✔ Catching errors at compile time ✔ Better IDE auto-completion ✔ Safer code refactoring ✔ Cleaner and maintainable automation code Playwright supports multiple languages like Java, Python, JavaScript, and TypeScript, and each team chooses what fits their ecosystem best. At the end of the day, the key lesson is simple: Use the right tools for the right problem. And keep learning — because technology never stands still. 🚀 #AutomationTesting #TestAutomation #Playwright #TypeScript #Java #SDET #SoftwareTesting #QualityEngineering #AutomationEngineer #TechLearning #LearningJourney #QACommunity #AutomationFramework #SoftwareQuality #TestEngineering

🚀 Most Developers Write This WRONG in Java 😳 Still using String concatenation like this? 👉 "+" inside loops = performance killer 💣 Every time you use "+", Java creates a new object in memory… which makes your code slower and inefficient 🐢 📌 Better approach? ✔ Use "StringBuilder" ✔ Faster 🚀 ✔ Memory efficient 💻 ✔ Cleaner & professional code This small change can make a BIG difference in real applications 🔥 Start writing code like a Senior Developer 💯 What do you prefer? 👇 #Java #JavaDeveloper #Programming #BackendDevelopment #Performance #CodingTips