Vue’s reactivity powers seamless data flows—but real-world apps expose its limits. In this guide, you’ll learn how to watch nested data, handle async operations, prevent memory leaks, debug common console errors, and optimize performance with patterns you’ll actually use in production. 1. Watching Nested Data Changes By default, Vue’s watch only detects top-level replacements. To react to deep changes, enable the deep option: import { reactive, watch } from 'vue' const settings = reactive({ theme: { color: 'light', fontSize: 14 }, preferences: { notifications: true } }) // Deep watch - fires for nested changes like settings.…

Every Vue developer faces this choice: use a method or a computed property? The wrong pick can kill performance, trigger console errors, or leave your UI stale. Here’s how to choose—and how to debug the most common pitfalls. Real-World Pitfalls and Their Console Errors 1. Computed Not Updating Symptoms: The value shown in the template never changes. No errors thrown—just stale UI. Console Warning (Vue 3 internal): [Vue warn]: Computed getter “filteredItems” has no effect.…

Props look simple until they’re not. You pass data from parent to child, everything should work. But then your component stops updating, reactivity breaks, and you’re debugging at midnight wondering why your perfectly reasonable code doesn’t work. I’ve debugged prop issues across multiple projects—same patterns keep breaking the same ways. Here’s what you’ll face and how to fix it. 1. The Destructuring Death Trap Problem: You destructure props and lose reactivity.…

Picture this: It’s barely 9 AM. Backend developers are quietly building APIs, while the frontend team is already juggling requests from design, product, and backend—each with conflicting priorities and timelines. This isn’t just workplace culture. Scientific studies confirm frontend teams face a uniquely complex set of blockers and dependencies, making their coordination role absolutely critical. The Reality Check: Frontend Teams Really Are More Blocked Frontend developers often feel blocked by everyone—designers, backend developers, and shifting product requirements—and studies confirm this isn’t just a feeling.…

Modern frontend teams face a constant challenge: bridging the gap between design (Figma) and code—quickly, accurately, and with as little manual work as possible. With Cursor editor, Figma MCP, and Browser MCP, you can turn this traditionally painful process into a blazingly fast, automated loop. This guide will walk you through why and how to set up these integrations, demonstrate the full design-to-code-to-verification automation, share best practices, and help you avoid common gotchas along the way.…

Modern web applications demand seamless user experiences, fast load times, and efficient resource utilization. In Nuxt.js, achieving these goals requires a deep understanding of how Vue components behave under different rendering modes, particularly when leveraging server-side rendering (SSR). Misconfigured lifecycle hooks or misaligned client-server interactions often lead to hydration mismatches, inconsistent state management, and degraded performance. This article provides a comprehensive analysis of Vue component lifecycle management in Nuxt.js SSR environments, clarifying which hooks execute where, how global properties behave, and how rendering modes influence application behavior.…

Have you ever created something just because you needed it? That’s exactly what happened with my Linux Mint applet - a simple button that turns off your screens while keeping your computer running. What started as a personal solution has grown into something that occasionally receives contributions from others, proving that even small projects can have lasting impact. The Birth of a Solution It all began with a common problem: I had a laptop with Linux Mint that needed to run, but I didn’t need the screen to be on.…

When you’re developing multiple related JavaScript projects-like a library and an app using it-you often need to test local changes before publishing to npm. There are several ways to link a local dependency into your project for fast, iterative development. Here’s a practical guide to the main options, their pros and cons, and some handy community tools to make local linking even smoother. The Problem: Developing and Testing Local Packages Suppose you’re building a shared component or utility library and want to see your changes reflected in a consuming project without publishing each update.…

When building reusable Vue components, you may sometimes want to prevent a component from mounting—especially if it performs heavy initialization like API calls. Vue’s lifecycle hooks provide some control, but truly stopping a mount before any side effects occur can be tricky. This article explains why this is a challenge and offers practical solutions for both Vue 3 and Vue 2. The Problem: Cancelling Component Mount Vue components often fetch data or perform setup in early lifecycle hooks, such as created or setup.…

We’ve all been there - you build a beautiful tab system or modal dialog, only to watch your app chug when switching between views. The Proxy pattern offers a pragmatic solution to this common performance headache. Let’s break it down like we’re pair-programming. The Core Idea Instead of destroying and recreating components (which burns CPU cycles), we: Render components once Hide them when not needed Quickly show them again when required It’s like keeping tools on your workbench instead of running to the storage room every time you need a hammer.…