Last week I worked on a Docker solution that enabled me to run a Vue 2 app that requires a Node version my new Mac doesn’t natively support; v12. My goal with this solution was to have Node and its dependencies managed inside the container while keeping code work on the developer's host machine. First version: a simple Dockerfile — proof of concept. It worked but required devs to use several commands to build images, map ports, mount volumes, and start the dev server. Not a great workflow. Second version: Docker Hub + `docker-compose.yml`. Now a single command handles everything for them: `docker-compose up` ✅ Pulls image from Docker Hub ✅ Maps host port `8080` to the container ✅ Mounts project directory ✅ Installs dependencies if missing ✅ Starts Webpack dev server automatically ✅ Keeps `node_modules` in a container volume Now, developers just run this one easy to remember command and the app is ready. That's what I'm talking about 🤘 Full journal entry → https://lnkd.in/dcNhGpM5 #docker #node #npm

🚀 New TekCasts Release! Every web server needs to know how to respond when someone visits a URL, clicks a link, or submits a form. That’s where routing comes in. In this new episode — Routing Basics — we’ll explore how to: ✅ Map URLs to server responses ✅ Handle GET vs. POST requests ✅ Serve different formats (HTML, JSON, etc.) This is the foundation for APIs, web apps, and dynamic content. 👉 Watch now: https://lnkd.in/dxgTD_BS #JavaScript #Nodejs #WebDevelopment #APIs #LearnToCode #BackendDevelopment

🚀 New TekCasts Release! Every web server needs to know how to respond when someone visits a URL, clicks a link, or submits a form. That’s where routing comes in. In this new episode — Routing Basics — we’ll explore how to: ✅ Map URLs to server responses ✅ Handle GET vs. POST requests ✅ Serve different formats (HTML, JSON, etc.) This is the foundation for APIs, web apps, and dynamic content. 👉 Watch now: https://lnkd.in/dqQdy_2z #JavaScript #Nodejs #WebDevelopment #APIs #LearnToCode #BackendDevelopment

⚡ Build a Fast “Hello World” Web Service in Go with Fiber on Ubuntu If you’re exploring Go (Golang) for building web applications, you’ve probably heard about Fiber — one of the fastest and most expressive web frameworks for Go, inspired by Express.js. 🚀 In this hands-on tutorial, I’ll guide you through: ✅ Creating a new Go module ✅ Setting up and installing Fiber ✅ Building and running your first “Hello World” web service on Ubuntu Perfect for developers looking to get started with Go web development and experience the performance and simplicity that Fiber brings to the table. 👉 Read the full guide here: https://lnkd.in/eFKXQcqt #Golang #Fiber #WebDevelopment #Ubuntu #BackendDevelopment #GoLangDevelopers #Programming

Ever heard of **“time travel debugging”**? It’s one of those game-changing tools that can save hours (or even days) of frustration when diagnosing tricky bugs in your code. If you’re not already familiar, it’s time to get excited. Traditional debugging involves stepping through code and inspecting variables at certain breakpoints, but what if you could go *backwards* in your program’s execution? That’s exactly what time travel debugging lets you do — rewind and replay your code’s behavior as if you had a DVR for your program. Why does this matter? Most bugs don’t just appear randomly; they’re the result of complex state changes over time. Being able to rewind and inspect how your variables evolved, which functions were called, or how the UI state transitioned makes it vastly easier to pinpoint root causes. Some cool time travel debuggers worth checking: - **Redux DevTools** for React apps: Lets you rewind state changes in your frontend apps. - **Microsoft’s Time Travel Debugging (TTD)** for native apps on Windows. - Tools like **Undo** (a commercial time travel debugger for C/C++). Here’s a tiny taste of Redux DevTools in action: ```js // Redux action that increments counter dispatch({ type: 'INCREMENT' }) // In Redux DevTools, you can now jump back to any previous action, // see state at that exact moment, and even “replay” actions forward. ``` The ability to visualize and *navigate through state history* is pure magic for debugging complex UI interactions or elusive bugs. Best of all, this concept is creeping into more tools and languages. Imagine using time travel debugging for async code, distributed systems, or even machine learning pipelines! If you haven’t yet played with time travel debugging, dive in — it’s like adding a superpower to your developer toolkit. What’s your favorite debugging hack? Have you tried time travel debugging yet? #Debugging #SoftwareEngineering #WebDevelopment #Redux #CodingTips #TechTools #DeveloperExperience #ProgrammingBetter

Next.js 16 is here, and it's a game-changer! I just finished upgrading three production apps, and the results are incredible: - Build times cut by more than HALF - Caching that finally makes sense - React Compiler for automatic optimization - AI debugging tools built-in If you're building with Next.js, this update is worth your time. I documented the entire migration process with real benchmarks, code examples, and all the breaking changes you need to know. Read the full guide: https://lnkd.in/g78hmGSh #javascript #typescript #frontend #nextjs #programming #softwareengineering #technews

🎉 Just released a tiny one I've been using internally @mateosuarezdev/attempt - an utility for explicit error handling in TypeScript. Tired of nested try-catch blocks? This library treats errors as values, not exceptions, making your code cleaner and safer: ✨ No try-catch boilerplate ✨ Explicit error handling with TypeScript type inference ✨ Array destructuring for flexible variable naming ✨ Works with custom error types across your app ✨ Supports both sync and async operations Perfect for DB Queries, API calls, JSON parsing, or any operation where you want predictable error handling. Built as a standalone package after extracting the pattern from my apps. Get started: npm install @mateosuarezdev/attempt yarn/pnpm/bun add @mateosuarezdev/attempt Repo: https://lnkd.in/dsVrK7Yb Check it out and let me know what you think! #typescript #javascript #trycatch #errors #bun #node #react

Day 3 – Exploring the Project Structure Before diving deep, I explored how a Spring Boot project is organized. Key folders: • src/main/java – main application logic • src/main/resources – configuration files • pom.xml – Maven dependencies • application.properties – custom settings Also learned that @SpringBootApplication enables auto-configuration, component scanning, and bootstraps the app. #SpringBoot #Java #BackendArchitecture

heyy connections ✨, I am excited to share this v8 engine in javascript,Implemented Google’s V8 JavaScript engine in a C++ app — fetched V8, configured GN, built with Ninja, embedded an `Isolate`/`Context`, ran JS, and exposed native C++ functions to JS. implementation of steps: 1. Install `depot_tools` and required build toolchain. 2. Fetch the V8 source (`fetch v8`) and sync dependencies. 3. Configure build with `gn gen` (choose monolithic for easy linking). 4. Build with `ninja` (e.g., `v8_monolith`). 5. Write C++: initialize V8, create an `Isolate` + `Context`, compile & run scripts. 6. Expose native C++ functions via `FunctionTemplate` and manage lifetimes/allocators. Result: run JS inside your process with high performance and control. 🔧✨ #V8 #Cpp #JavaScript #Dev V8 #Embedding #Cpp #JavaScript Sudheer Velpula