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JavaScript

26 items on 10 Oct 2026
JavaScript

Keeping AI video jobs visible after a page refresh

An AI video job can keep running after the user refreshes the page. The browser loses its component state, but the generation service still has work to do. When the page comes back, the UI needs to find that job, resume…

Source: DEV JavaScript feed Elara
JavaScript

Who gave your frontend permission to retry?

Almost every frontend codebase has this somewhere, usually in a file called api.ts: async function fetchWithRetry(url: string, retries = 3) { try { return await fetch(url); } catch (err) { if (retries === 0) throw err;…

Source: DEV JavaScript feed Siddharth Pandey
JavaScript

Format JSON without pasting it into a random website

The problem You hit an API, get a 4,000-character single line back, and need it readable. So you search "online json formatter", paste the response into the first site that loads, and press Format. That response…

Source: DEV JavaScript feed Li Yi
JavaScript

HTML, CSS and JavaScript: Who Does What? A Beginner-Friendly Guide

If you're beginning your journey into web development, you've probably encountered three names almost immediately: HTML. CSS. JavaScript. You may have seen tutorials teaching them separately. You may have seen…

Source: DEV JavaScript feed Okoye Ndidiamaka
JavaScript

Decision models are a new category, and Microsoft just joined it

For years, "new model" meant "new chatbot." Lately a different kind has been showing up: models that don't write anything. They return a decision. 🎯 🧩 The category TypeSafe's Jev was the first I noticed. TypeSafe calls…

Source: DEV JavaScript feed Shouvik Palit
JavaScript

Running 14 math solvers in the browser with Astro, no backend

Math Questions Hub is a static Astro site with solvers for 14 math topics. There's no server, and every answer is calculated in the browser. This post covers the pattern the solvers follow, and what it does for testing…

Source: DEV JavaScript feed USA Beam
JavaScript

Node.js Middleware Deep Dive: Build Secure and Maintainable APIs

Middleware is one of the most important concepts in Node.js backend development, especially when building APIs with Express. It provides a structured way to handle authentication, validation, logging, error handling,…

Source: DEV JavaScript feed Ansh Sheladiya
JavaScript

A passport photo guide that runs in your browser

I needed a passport photo and the photo counter wanted $17 for one picture. Printing it yourself on a 4 x 6 sheet is a familiar workaround, but you only find out the head is the wrong size when someone refuses the…

Source: DEV JavaScript feed Arthur031221
JavaScript

Rust vs C++: Duel Kinerja dan Keamanan untuk Pengembangan Sistem

Pendahuluan: Duel Bahasa Pemrograman Sistem Perdebatan bahasa pemrograman terbaik untuk pengembangan sistem berlanjut. Rust dan C++ adalah kandidat utama, keduanya menawarkan kemampuan tingkat rendah esensial dengan…

Source: DEV JavaScript feed IbraMedia
JavaScript AI

Move Slow LLM Calls Off the Request Path with BullMQ in Node.js

If an LLM call can take 20 seconds or more, keep it out of your HTTP handler. Put the work on a BullMQ queue backed by Redis, return a job ID right away with a 202 Accepted, and let a separate worker make the slow call…

Source: DEV JavaScript feed Geminate Solutions

26 items available