JavaScript Closures as Lightweight Objects

🎭 JavaScript Classes Are Just Syntax Sugar When I first saw class in JavaScript, I thought: 👉 “Okay, now JS is like Java or C#.” But that’s not true. 💡 This: class User { constructor(name) { this.name = name; } sayHi() { console.log(this.name); } } 👉 Is actually this under the hood: function User(name) { this.name = name; } User.prototype.sayHi = function () { console.log(this.name); }; 🔥 Important detail: typeof User // "function" 👉 Classes are still functions. 🧠 So what is class really? ✔ Cleaner syntax ✔ Easier to read ❌ Not a new system 🚀 My takeaway: Classes make JavaScript easier to write… but prototypes are still doing the real work. Once you understand this, you stop relying on syntax… and start understanding behavior. #JavaScript #OOP #Frontend #Programming

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

There are several things in life that I often ask myself "how in all that is good and satisfying in this world did *this* (insert thing here) ever get off the ground?" I feel this way about old bands on the classic rock station a lot. It's just noise and terrible mixes and coked up lead singers trying to sound like they're terrible on purpose but it's artistic (GnR, ACDC, etc...no one sings like that. it's stupid.) I recently decided to try java by getting on youtube and just following a few tutorials. I come from the world of PHP and Python. Let me tell you what...I understand that java may have been the only choice for a while and that's why it was adopted...but holy crap why is it still here? Like...candles were the only choice for lighting for a while but as soon as light bulbs were a thing, candles went away pretty quickly. The whole tooling pipeline for java is insane. You apparently need to know which SDK is supported by which JDK, and which builder (maven or gradle) supports the SDK and JDK pair. And all of them let you choose an infinite combination of broken settings because the system doesn't tell you what's incompatible until you run it. The default settings chosen by InteliJ don't get installed by default so it's trying to run a software stack that is not only incompatible with your configs but also doesn't exist because even though it's selected by default, did not get installed with the editor. THEN, I get a (seemingly) convenient pop up in the bottom right telling me that "Spring is a suggested plugin, click here to configure". Sure, why not? I'm building a spring project, let me install this auto-detected and suggested plugin. Click the configure link...the only plugin I'm shown is a kubernetes plugin. The recommended plugin from the tool tip is not even in the list of suggested plugins when the tool tips own pop up is opened. Like............I'm just sort of speechless. And this is using start.spring.io to build the packages and bundle everything. I'm not even trying to do some janky off-brand build here. I've been dealing with dependencies and tool set ups for over an hour and I haven't even written a single line of code. Again...while being guided by a tutorial step by step. How has the programming world not revolted against this to a higher degree? I'm happy to receive comments and helpful tips to get me started better...but I'm a 10 year-experienced developer in multiple other tool sets and I have never in my life seen something this insane.

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

I Compared Java & JavaScript — The Result Surprised Me ⚡ ⚔️ Core Difference JavaScript → Dynamic, flexible, fast to write Java → Strict, structured, built for large systems 🚀 Development Speed JavaScript → Write less code, see output instantly Java → More boilerplate, slower to start 👉 JS wins for beginners & quick projects 🧠 Learning Curve JavaScript → Easier to pick up Java → Requires understanding OOP, types, structure 👉 JS feels simpler early on 🔧 Flexibility JavaScript → One array can act like stack, queue, etc. Java → Different classes for each (Stack, Queue, List…) 👉 JS is more flexible, less to memorize ⚙️ Execution & Type System JavaScript → Interpreted + dynamically typed Java → Compiled + statically typed 👉 Java is safer, JS is faster to experiment 🌍 Usage JavaScript → Frontend + Backend (Node.js) Java → Backend, enterprise systems, Android 🧱 Scalability & Maintainability JavaScript → Can get messy in large apps if not structured Java → Strong architecture for large, long-term systems 👉 Java wins for big, complex systems 🎯 Final Clarity Use JavaScript when you want: 👉 Speed, flexibility, quick results Use Java when you want: 👉 Stability, structure, large-scale systems

Dev Notes #06 JavaScript feels like a breath of fresh air. For the past several months, my focus has been almost entirely on Java and Spring Boot: annotations, dependency injection, bean lifecycles, REST API design. Backend development is deeply rewarding, but it demands a particular kind of discipline. Everything is structured, strongly typed, and explicit by design. So when I began picking up JavaScript and React last week, my first reaction was genuine surprise at how different the experience felt. No type declarations. Components as functions. UI that responds to state. Coming from Java, it initially felt almost too flexible. But as I moved beyond the syntax and started reasoning about how things actually work, the depth became apparent. One concept that stood out early was memoization, specifically React's useMemo hook. The premise is straightforward: cache the result of a computation and only recalculate when its dependencies change. What made it click for me was recognising the intent behind it. While working through a component that parsed and tokenized text at the word level, re-executing that logic on every render would have been unnecessary and wasteful. useMemo made the computation deliberate, run once, reuse until something meaningful changes. That mindset, being intentional about what executes and when is not unfamiliar. It is the same principle that drives query optimization and efficient API design on the backend. The layer is different; the thinking is the same. JavaScript offers flexibility that Java does not. But flexibility without understanding is just unpredictability. The more I explore the frontend, the more I find that strong fundamentals transfer across the stack. #JavaScript #React #WebDevelopment #Java #DevNotes

One of the fascinating things about JavaScript is how good a language it is despite having been thrown together in ten days with the bizarre constraint that it look like Java because Sun and Netscape were flirting. As I try to refine the developer experience of tjs to a finely honed edge I have the luxury of having no user base and a tireless peon who is willing to update all test code, examples, and documentation on a whim. Yesterday I changed the function signature syntax to be more intuitive for typescript coders. Claude implemented it as a deprecation and I said no, just purge the old syntax. We have no users so why make our code more complex or our examples ambiguous. It’s amazing to me that JavaScript got as far as it did with its obvious flaws (and strengths) without getting some crucial fixes before there were too many stakeholders to satisfy. typeof null == “object”… really? Semicolon insertion?! And it’s not like HyperCard hadn’t walked the same path more successfully nearly ten years earlier. HyperTalk was already compiling to assembler and writing system extensions at that point.

I just published ts-lombok-kit 🚀, a TypeScript library inspired by Java’s Project Lombok. If you’ve ever found yourself rewriting the same constructors, getters, setters, toString, and equals methods in TypeScript… this is for you. ts-lombok-kit eliminates boilerplate using compile-time AST transformations, meaning: ✔️ No runtime overhead ✔️ Code is generated before TypeScript even type-checks it ✨ Example Instead of writing 40+ lines of boilerplate: @Data class User { id: number; name: string; email: string; } // Constructor, getters, setters, toString, equals, all generated. Or go fully immutable with a fluent builder: @Record @Builder @With class Product { id: number; name: string; price: number; } const p = Product.builder() .id(1) .name('Widget') .price(9.99) .build(); const updated = p.withPrice(19.99); // new instance, p unchanged 🔧 What’s included @Record / @Value — immutable data classes @Data — getters + setters + toString + equals in one shot @Builder — fluent builder API @With — immutable copy-with updates @Singleton, @Log, @NonNull, and more ⚡ Bonus Works with TypeScript 5 native decorators, no experimentalDecorators flag needed. 📦 npm: https://lnkd.in/dp5dk43J 🌐 Docs: https://ts-lombok-kit.dev Would love your feedback and thoughts from the TypeScript community! ⭐ #TypeScript #OpenSource #DeveloperTools #WebDevelopment #JavaScript

For nearly two decades, PVS-Studio has helped developers write safer, cleaner code. We started with C and C++, then expanded to C# and Java. And we don't plan to stop! Now we are developing new analyzers for JavaScript and TypeScript and in the article, we tell you how we built it and what to expect. Most likely, if you're working with JavaScript or TypeScript, this article could be interesting for you. https://lnkd.in/eze5aeHp #StaticAnalysis #JavaScript #TypeScript #DevTools

One of the most Important Question in Java Script Q. “Explain Prototypal Inheritance in JavaScript” I am going to tell you the simplest way to explain it: JavaScript doesn’t use traditional class-based inheritance. Instead, it uses Prototypal Inheritance — Prototypal Inheritance in JavaScript means that objects can inherit properties and methods from other objects. This property & method points to another object, known as its prototype. What actually happens behind the scenes? Every JavaScript object has an internal hidden property called [[Prototype]] (accessible via __proto__ or Object.getPrototypeOf()). This link is called the prototype When you try to access something: → JS first checks the object → If not found, it goes up to its prototype → Keeps going until it finds it or reaches null This is called the Prototype Chain Why interviewers ask this? Because it tests: 1.) Your core JavaScript understanding 2.) How deeply you know objects 3.) Whether you actually understand JS or just use frameworks