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46 items on 10 Sep 2026
JavaScript

Designing a Crash-Style Demo Interface in the Browser

A crash-style interface looks simple: a multiplier starts at 1.00x, increases over time, and stops at an unknown point. From an implementation perspective, however, the animation is the least important part. A…

Source: DEV JavaScript feed Bairam Bekk
JavaScript

Unix Timestamps Explained: A Practical Guide for Developers

If you work with APIs, logs, databases, authentication tokens, or scheduled jobs, you have probably seen numbers like this: 1789056000 That number can represent a date and time using a Unix timestamp. What Is a Unix…

Source: DEV JavaScript feed Sam
JavaScript

Learning Web Development Is Easier When You Build Real Projects

A lot of beginners start web development by watching tutorials and learning syntax. That is useful, but there is a point where watching more videos stops helping. You start improving when you actually build something.…

Source: DEV JavaScript feed Web Prims
JavaScript

BeeLadybug — Debug Visivo e Monitoraggio per BeeEngine

BeeLadybug — Debug Visivo e Monitoraggio di Motore BeeLadybug è la classe di debug visivo ufficiale per BeeEngine. Offre un monitoraggio in tempo reale delle prestazioni (FPS, tempo di ciclo, entità attive) e disegna le…

Source: DEV JavaScript feed Antonio
JavaScript

BeeTime — Documentazione Tecnica (BeeEngine)

BeeTime — Gestione Avanzata del Tempo e del Core Loop BeeTime è il motore temporale centralizzato di BeeEngine (situato in src/core/BeeTime.js). Gestisce un singolo ciclo di aggiornamento (tick) per ogni fotogramma…

Source: DEV JavaScript feed Antonio
JavaScript

Why I built a 100% Client-Side JSON Beautifier & Web Tools Suite

As a web developer, I frequently work with large JSON payloads, API responses, and sensitive config files. One thing that always bothered me was pasting confidential API payloads, customer data, or JWT tokens into…

Source: DEV JavaScript feed Ads Wala
JavaScript

Congrats to the Frontend Challenge: Comfort Food Edition Winners!

We are so excited to announce the winners of our Frontend Challenge: Comfort Food Edition! This challenge asked you to put the food that means something to you on the web, and the range of what came back was wonderful.…

Source: DEV JavaScript feed Jem
JavaScript

Securing a loopback CDP relay with extension-ID pinning

My local relay (127.0.0.1:8765) proxies Chrome DevTools Protocol commands to a headless browser whose cookie jar holds my logged-in sessions. A shared secret in a header was never enough: any web page I visit can fire…

Source: DEV JavaScript feed Baptiste Le Bouquin
JavaScript React

Benchmarking in-app announcement widgets: 150KB vs 3.8KB SDK

We recently ran Lighthouse audits across 40 top B2B SaaS web applications. Over 65% of them were failing Interaction to Next Paint (INP) and Largest Contentful Paint (LCP) targets. The culprit? Legacy onboarding and…

Source: DEV JavaScript feed Pavan S Poojary
JavaScript

Attractive.js 1.0.0: interactive HTML without one line of JavaScript

I wrote a JavaScript library. Again (or rather I rewrote the JavaScript library I write some time ago). I had the idea for Attractive for quite some time, based on the following thought: why do I reach for a framework…

Source: DEV JavaScript feed Rails Designer
JavaScript

Closure in JS

What is a Closure? A closure is created when an inner function remembers and can access variables from its outer function even after the outer function has finished executing. Example: function outer() { let name =…

Source: DEV JavaScript feed Rakshambika
JavaScript

What Happens After OCR?

This is the question I think OCR tools should ask more often. You extracted the information. Now what? Edit it → Word Calculate it → Excel Search it → PDF Import it → JSON/CSV Query it → SQL Document it → Markdown…

Source: DEV JavaScript feed Loveocr

46 items available