Understanding OOP in Javascript

TypeScript Series Part 3: OOP – Enums, Classes, and Dynamic Methods! 🚀 As I dive deeper into my TypeScript journey, Part 3 has been all about building structured, scalable code using Object-Oriented Programming (OOP) principles. Here’s a breakdown of what I covered today: 1. Enums (Enumerations) Enums allow us to define a set of named constants. Instead of using magic strings or numbers, Enums make the code readable and type-safe. Example: Defining user roles or application states. typescript enum UserRole { Admin = "ADMIN", Trainer = "TRAINER", Student = "STUDENT" } Use code with caution. 2. Classes & Constructors Classes are blueprints for objects. The Constructor is a special method that runs automatically when a new object is created, helping us initialize properties instantly. Example: typescript class Laptop { brand: string; constructor(brandName: string) { this.brand = brandName; } } const myLaptop = new Laptop("Dell"); Use code with caution. 3. Dynamic Methods Methods are functions defined inside a class. They become "dynamic" when they can take arguments to perform different actions based on the input, allowing the object to "do" something. Example: typescript class Calculator { multiply(a: number, b: number): number { return a * b; } } Use code with caution. Putting it all together: typescript enum ProjectStatus { Pending = "PENDING", Ongoing = "ONGOING", Done = "DONE" } class Project { constructor(public title: string, public status: ProjectStatus) {} updateStatus(newStatus: ProjectStatus) { this.status = newStatus; console.log(`Project "${this.title}" is now ${this.status}`); } } const myTask = new Project("TypeScript Part-3", ProjectStatus.Ongoing); myTask.updateStatus(ProjectStatus.Done); Use code with caution. Special thanks to my trainer Ram Shankar Darivemula and the team at Frontlines EduTech (FLM) for making these complex concepts so easy to grasp! Onto the next challenge! 💻🔥 #TypeScript #Coding #WebDevelopment #SoftwareEngineering #LearningJourney #OOP #TechCommunity

The new version of the programming language with a Go backend is said to be ten times faster than its predecessor, which used the JavaScript codebase.

🎭Playwright Fixtures are just Aspect-Oriented Programming (AOP) in disguise. Change my mind. 🧠 I’ve been diving deep into Playwright lately, and the more I deconstruct its technical fabric, the more I realize: We aren't just writing test hooks. We are implementing Aspect-Oriented Programming. If you come from the Java/Spring world, you know the power of @Before, @After, or the magic of Spring Aspects and AspectJ. You define a "Cross-Cutting Concern" (like logging or transaction management) and "weave" it around your business logic. The "Aha!" Moment 💡 When you peel back the layers of a Playwright Fixture, the structural symmetry with AOP is undeniable. In its essence, a Fixture is a Proxy Wrapper. It intercepts the test execution flow, allowing you to inject logic Before, After, or Around a behavior. Instead of manual setup/teardown boilerplate, Playwright uses a Dependency Injection (DI) container to "provide" these fixtures. When a test requests a fixture, Playwright: Intercepts the request. Setup: Executes the logic before the use() call (The "Before" Advice). Execution: Injects the resource into the test. Teardown: Resumes execution after the use() call (The "After" Advice). Why this is architecturally fascinating: By treating Fixtures as AOP Wrappers, we can implement "Invisible Infrastructure." I’ve been experimenting with wrapping Page Objects in a JS Proxy inside the fixture definition. This allows me to intercept every single method call (like a click or an input) and automatically weave in cross-cutting concerns: Automatic Wait/Retry: Ensuring the element is clickable before the method even runs. Centralized Logging: Capturing every action without polluting the page classes. State Management: Handling session persistence across different test grains. The Verdict: Playwright isn't just a browser automation tool; it’s a sophisticated piece of software engineering that brings enterprise-level patterns (DI, Proxy, AOP) to the testing world. It allows us to separate "What" the test is doing from the "How" it’s being handled at a system level. Any other Spring/Java devs seeing these same backend patterns emerging in modern automation frameworks? Example usage: https://lnkd.in/gNVRfkkU Let’s talk architecture in the comments. 👇 #Playwright #SoftwareArchitecture #AOP #TestAutomation #TypeScript #SpringFramework #QualityEngineering #ProgrammingPatterns

💡 Think → Code → Debug → Repeat. Every developer knows — the real growth happens in the debugging phase. This post was designed in Figma 🎨 and brought to life using Django 🐍 Programming is not just about writing code, it’s about solving problems, facing errors, and improving step by step. Every bug fixed = one step closer to mastery. 💻 Keep building. Keep learning. 🚀 #Coding #Programming #Django #Python #WebDevelopment #Developers #SoftwareDevelopment #Debugging #Tech #CodingLife #LearnToCode

💻 Day 8 of Coding Today I learned about Object-Oriented Programming concepts in JavaScript: 📚 Topics Covered: • Objects & Prototypes • Classes and Constructors • Inheritance • super keyword Understood how: • Objects can share properties using prototypes • Classes act as a blueprint for creating objects • Child classes inherit from parent classes • Method overriding works in inheritance 🛠️ Practiced by solving problems: • Created a User class with properties and methods • Built an Admin class inheriting from User • Added functionality using inheritance and methods ⚠️ Honest reflection: Today felt a bit confusing. I wasn’t very energetic and understanding these concepts took more effort than usual. But I realized: Some topics take time to fully understand It’s okay to feel stuck sometimes Practice is the only way to get clarity Still showing up and learning every day 🚀 #JavaScript #WebDevelopment #100DaysOfCode #Learning

I wrote a blog on callbacks breaking down from first principles: • What a callback actually is • Why callbacks exist in async programming • How functions are passed as values • Where callbacks show up in real-world code • Why callback nesting becomes a problem If you’re learning JavaScript, this is one of those concepts that clears up a lot of confusion around async behavior 👇 https://lnkd.in/gvy6SSuw #JavaScript #WebDevelopment #AsyncJavaScript #Coding #LearnToCode #FrontendDevelopment #Programming #Developers #TechLearning #100DaysOfCode

🚀 Mastering JavaScript Fundamentals Understanding core concepts like Array & String methods is a game-changer for writing clean, efficient code. From map() and filter() to split() and trim(), these built-in methods help you solve problems faster and write smarter logic. 💡 Consistency in learning the basics builds a strong foundation for advanced development. Sharing this quick visual guide to help beginners and refresh concepts for developers! What’s your most used JavaScript method? 👇 #JavaScript #WebDevelopment #Coding #LearnToCode #Frontend #Programming #Developers

Loops are the backbone of efficient coding. Instead of writing repetitive code, loops help automate tasks and improve performance. 🔹 For Loop – Best when you know how many times to iterate 🔹 While Loop – Runs as long as a condition is true 🔹 Do-While Loop – Executes at least once before checking condition 🔹 For Each Loop – Simplifies iteration over collections Each loop has its own purpose, and choosing the right one can make your code cleaner, faster, and more readable. 💡 Master the fundamentals, and everything else becomes easier. #Programming #WebDevelopment #Coding #JavaScript #SoftwareDevelopment #TechLearning #Developers #CodingLife

Day 98 of my #100DaysOfCodeChallenge Today I explored Object-Oriented Programming in JavaScript using classes. Here’s what I worked on: Built a Product class with methods to display details and calculate total price Learned how constructors initialize object properties Implemented static properties and methods using a utility class Created a User class to track the number of users created This helped me understand the difference between instance-level and class-level behavior, and how to structure code more effectively. It’s a shift from just writing functions to designing systems. #JavaScript #OOP #WebDevelopment #SoftwareEngineering

Sharing beginner-friendly notes on Object-Oriented Programming (OOP) in JavaScript 🧠 Covered core concepts like Classes, Constructors, Inheritance, Encapsulation, Polymorphism, Getters/Setters, Static methods, and Private fields (#) with clear examples. Also explained how super, instanceof, and prototypes work behind the scenes. A practical guide to understanding how OOP works in modern JavaScript. Feedback and suggestions are welcome! #JavaScript #OOP #Coding #Learning #Programming