vuejs/core: v3.6.0-rc.4
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Daily edition · JavaScript
The daily ledger
TILens turns technical updates into a focused daily brief: official releases, trusted reporting, and practitioner analysis, deduplicated and organized by topic.
After Supper: Rewinding a Family Dinner Through Memory
This is a submission for Frontend Challenge - Comfort Food Edition, Perfect Landing What I Built I built AFTER SUPPER, an interactive landing page about comfort food, memory, and the people around the table. Instead of…
500 Blog Posts To Learn About Javascript
Let's learn about Javascript via these 500 free blog posts. They are ordered by HackerNoon reader engagement data. Visit the Learn Repo or LearnRepo.com to find the most read blog posts about any technology. "Not a real…
List Comprehensions, Generators, and the Matrix: When to Use Each
The Quest Begins (The "Why") I was refactoring a data‑processing script that read a CSV of user events, filtered out bots, turned timestamps into ISO strings, and dumped the clean rows into a new file. The original…
Kog: tối ưu GPU thường để tăng tốc suy luận LLM, không cần chip riêng
Originally published on NextFuture Nếu bạn từng đợi hàng giờ để agent như Claude Code trả kết quả, đó chính là vấn đề mà startup Pháp Kog đang nhắm tới — không phải bằng chip chuyên dụng như Cerebras, mà bằng cách tối…
AI agent báo 'xong' nhưng không chạy: framework 6 tầng vá lỗi
Originally published on NextFuture Bạn hỏi AI agent làm một việc, nó báo "xong", nhưng code không chạy. Bạn đổi model khác, vẫn vậy. Một kỹ sư làm việc với Claude Code, Codex và Cursor hơn một năm vừa công bố…
The file existed, so I assumed the check passed
A user sent me two clips and a screenshot. My video merge tool had run to 100%, said "Applying transitions…", and then thrown: FS error: readFile 'merged.mp4' The error is honest and useless. merged.mp4 does not exist.…
Eleven pages that read your own files in the browser. The hard part was what they refuse to say.
Drop a JPEG onto this page and it will read the quantization and Huffman tables straight out of your file's bytes and show you the numbers your camera or your phone or Photoshop used to round the picture. It does this…
Semantic search for 796 pages, with no server, no vector database, and no model at query time
Our site has 796 indexed pages of dense, cross-referenced, deliberately weird material: machine-checked proofs, live geology, a page that reads the quantization tables out of a JPEG you drop on it. Sorting that by date…
E2E Tests Without Brittle Fixtures: Generate Data on the Fly
Flaky Playwright and Cypress runs trace back, more often than anyone expects, to e2e test fixtures that quietly stopped matching the schema after last Tuesday’s migration. You have probably watched a Cypress test that…
I Built a Free Speaker One-Sheet PDF Generator (Because Canva Charges $15/month)
I Built a Free Speaker One-Sheet PDF Generator (Because Canva Charges $15/month) Stop paying $15/month for Canva Pro when you just need a clean speaker one-sheet. I was tired of Canva's subscription model — $180/year…
The Color Math Was Never the Slow Part
The first version of my image-to-Minecraft-blocks converter locked up the browser tab for long enough that I assumed something had crashed. I dropped in a photo straight off my phone, hit convert, and the page stopped…
A planet in a browser tab
Our site now has a chapter where you scroll a camera through low orbit, visiting the four places we operate from. It looks like it should weigh fifty megabytes. It ships in roughly 1.5, and it is built almost entirely…
I Built a Free Vacation Rental House Manual Generator (Because Hostfully Charges $30+/mo)
I Built a Free Vacation Rental House Manual Generator (Because Hostfully Charges $30+/mo) Stop paying $30+/month for Hostfully when you just need a clean welcome book for your Airbnb or VRBO listing once. I was tired of…
I Built a Free Screenplay & Script Formatter (Because Final Draft Charges $50–200/Year)
I Built a Free Screenplay & Script Formatter (Because Final Draft Charges $50–200/Year) Stop paying $50–200/year for Final Draft when you just need clean screenplay formatting. I was tired of Final Draft's subscription…
From X/Twitter Bookmarks to a Searchable Static Site
I wanted my X bookmarks to feel like a personal archive. The saved posts lived inside one account, the useful parts were hard to search, and the workflow offered no public reading surface. This project turns that…
Scope in JavaScript
What Does Scope Mean? Scope means: where can we use a variable? Some variables work everywhere in the code. Some variables work only in one small part. Think of a House In a house, everyone can use the TV in the living…
Why I’m Building FormatForge.org as a Browser-First Data Tools Platform
As developers and data engineers, we regularly use online tools to convert, validate, compare, reconcile, and inspect data. JSON to Excel. CSV transformations. PDF utilities. Diff and comparison tools. Invoice…
Two npm worms shipped with valid provenance this year
I spent most of this year believing a green provenance check on npm meant something stronger than it does. Two incidents fixed that, and the second one changed what I build. If you haven't used it: when a package is…
Keep Streaming, Abort, and Announcements Intact When You Move a Free Model Behind Your Own Server
The useful test is not whether a free model endpoint can stream. It is whether the browser can still cancel it, retry it, and announce its state changes after you insert your own server in the middle. That question…
Build AI-Powered Workflows with Zyctra API
Build AI-Powered Workflows with Zyctra API The Problem: AI Assistants That Don't Integrate Professionals and developers face a daily challenge: juggling multiple tools, platforms, and contexts. You switch between your…
Environment Config the Clean Way
Stop Hardcoding: Start with a Config Layer Every app needs configuration. API keys, database URLs, feature flags, ports. The lazy way is to sprinkle process.env calls directly in your business logic. That works until…
Why Brotli Beats Gzip for Web Performance (And How to Test It in Your Browser)
If you're still relying solely on Gzip to compress your production JavaScript and CSS assets, you're leaving free performance on the table. Brotli (Content-Encoding: br) has become the gold standard for web compression,…
The 10 Sites Guide to Buying Old Pinterest Accounts .. ...
Meta Description Learn about Buy Pinterest Accounts, including account age, security risks, privacy protection, recovery options, Pinterest business features, phishing awareness, and safe account management practices in…
I got mass bulk banned because I wasn't able to share privacy-first dev tool alternatives so I built my own 10 free browser tools
The Problem That Annoyed Me Into Building Something I spend most of my day debugging JSON payloads, generating hashes for API integrations, and converting timestamps. Like most developers, I'd Google "json formatter…
How I Built a Client-Side Shield for AI Chatbots (Open Source)
I was burning through API tokens on off-topic chatbot queries. Every "Who are you?" = brand leak + wasted money. So I built Shield by Vouch — a zero-cost, client-side filter that blocks prompt injections and off-topic…
I Built a Free YouTube End Screen Generator (Because Canva Charges $12.99/month)
I Built a Free YouTube End Screen Generator (Because Canva Charges $12.99/month) Stop paying $12.99 per month for Canva Pro when you just need a clean YouTube end screen. I was tired of Canva's subscription model —…
I Built a Free Brand Guidelines Generator (Because Canva Pro Costs $180/Year)
I Built a Free Brand Guidelines Generator (Because Canva Pro Costs $180/Year) Last year I was helping a friend put together a brand guidelines document for their freelance business. They needed something professional —…
I Built a Free Wedding Photo Proof Sheet Generator (Because Pic-Time Charges $19/mo)
I Built a Free Wedding Photo Proof Sheet Generator (Because Pic-Time Charges $19/mo) Last year I was helping a friend who just started wedding photography. She showed me her Pic-Time subscription — $19 a month, and even…
Abort-Forwarding Proxy for a Free Model Endpoint: Stop Losing Tokens After the User Leaves
A streaming model UI usually pauses when the user hits Cancel, but the cancel button only stops the local reader. The upstream generation can keep running unless the browser's AbortSignal travels through your server to…
How to Convert HEIC to PDF in the Browser with Vue 3 and Canvas
Converting HEIC (High Efficiency Image Container) files to PDF seems straightforward — decode the image, embed it in a PDF. But HEIC adds complexity: browser support varies, EXIF orientation handling is tricky, and…
React Email Checks Need One Source of Truth
If your signup form still stores email validation as a loose pile of booleans, that field is probably lying to your UI from time to time. I keep seeing the same combo in production React apps: isChecking, isAvailable,…
Why Hire a Next.js Development Company? A Technical Guide for Engineering Teams
Choosing a Next.js development company is not simply about finding a team that can build React components. A production Next.js application can involve server rendering, caching, routing, API design, authentication,…
I Built a Free Book Cover Designer (Because Canva Pro Charges $156/Year)
I Built a Free Book Cover Designer (Because Canva Pro Charges $156/Year) Last year I was helping a friend design a book cover for their KDP launch. They needed something professional — a 6×9" print-ready PDF with their…
Building a Free Recipe Card Generator That Beats Canva's $12/mo Paywall
Building a Free Recipe Card Generator That Beats Canva's $12/mo Paywall Published on Dev.to · Client-side only · No backend required Tired of Canva charging $12/month just to download a PDF? I built a free, private,…
Free Online Developer Tools - JSON Formatter, QR Code, Password Generator
I built a free online tools website for developers. No signup required. Features: JSON Formatter & Validator QR Code Generator Password Generator Base64 Encoder/Decoder Try it: https://stellular-tanuki-3b890f.netlify.app…
5 React interview questions I'd actually ask (and how I'd answer them)
Most "React interview questions" lists online are either trivia (define useEffect) or so advanced they're not useful below 3-4 years of experience. Here are 5 I think are actually worth knowing, with the answer I'd give…
A Working Application Isn't Necessarily a Well-Engineered Application
When I started building applications, I used to have a fairly simple definition of success: 𝐈𝐟 𝐢𝐭 𝐰𝐨𝐫𝐤𝐬, 𝐢𝐭'𝐬 𝐰𝐨𝐫𝐤𝐢𝐧𝐠. And honestly, that mindset makes sense when you're learning. You build a feature. You run it. It…
Designing Regulatory-Compliant Synthetic Voice Interfaces for Conversational AI
Designing Regulatory-Compliant Synthetic Voice Interfaces for Conversational AI Voice agents powered by ultra-low-latency models (such as OpenAI Realtime API, Cartesia Sonic, and ElevenLabs Turbo v2.5) are…
ShowDev: I Built a Client-Side Probability Engine for Global Lotteries 🎲📈
Hey DEV community! 👋 Have you ever looked at lottery numbers and thought, "There has to be a better mathematical approach than just pure Math.random()?" I did. Instead of leaving everything to blind chaos, I wanted to…
DigitalNeurals | Digital Marketing for Manufacturing Industry
Digital marketing tailored for manufacturing focuses on connecting B2B manufacturers, OEMs, and industrial suppliers with procurement decision-makers, engineers, and plant managers. Unlike consumer-focused marketing,…
You copy and reverse the array to find the last match. `findLast()` searches from the end directly.
Here is a pattern that shows up in almost every codebase: const lastActive = [...users].reverse().find(u => u.status === 'active'); It works. But it creates a full copy of the array, reverses that copy in place, and…
Friday Links #43: A Busy Week for JavaScript
There’s no shortage of new JavaScript projects, but only a fraction deserve a permanent spot in your bookmarks. This week’s selection includes fresh framework releases, interesting React experiments, useful UI…
jalali-js: Persian calendar for JavaScript
You've probably been here: you want Jalali dates in the UI, but not a pile of packages, Moment plugins, and Jalali strings leaking into your API. jalali-js (currently 0.4.2) is the small toolkit I reach for in that…
What I learned about repeat-and-vote sampling for non-deterministic search results
Repeating a YouTube search query three times and keeping only results that appear in two or more of those fetches is more reliable than treating any single fetch as ground truth. The Jaccard similarity between two…
Why simplified Chinese's 干 becomes three different traditional characters (and how a converter has to guess right)
When I added a Traditional/Simplified Chinese converter to my little text-tools site, I assumed it'd be the easy one — swap a few thousand characters for their counterparts and call it done, same idea as the Unicode…
JavaScript Design Patterns: Singleton and Factory Explained with Real Examples
JavaScript Design Patterns: Singleton and Factory Explained with Real Examples When developing software, we often face the same types of problems repeatedly. For example: How should we create objects? Should every part…
Build First. Understand What You Build. Then Use AI to Build Faster.
A few months ago I noticed something that bugged me enough to eventually write a book about it. AI coding tools are genuinely good now. Copilot, Claude, Cursor — you can describe a feature and watch working code appear…
Biome vs ESLint + Prettier: The Rust Toolchain That's 56x Faster in 2026
In a typical TypeScript monorepo, linting alone can eat 45 seconds off every CI run, and that's before Prettier gets a turn. According to a 2026 linting comparison on dev.to, running ESLint across 10,000 files takes…
Parsing multi-gigabyte Outlook PST files in the browser
Disclosure up front: I build Mailward, a browser-based PST/OST/OLM/MBOX/EML viewer. These are the implementation notes. A PST file is not a folder of emails. It is a single-file B-tree database — Microsoft documents the…
[Python/JS/C#] Block Engine v2.2.0: Run Python, Node.js, Lua & PHP in a single document with zero-config state pipeline
Hi everyone, I want to share Block Engine v2.2.0, an open-source polyglot multi-runtime execution engine designed to eliminate the friction of combining multiple programming languages in software development. 💡 Why…
Technical Overview: Multimodal AI Generation in YouArt AI
Generative AI platforms are moving beyond static text-to-image outputs toward unified multimodal pipelines that handle image, video, and audio synthesis in a single web interface. A notable implementation in this space…
This new startup can query anywhere you've been...
CodeRabbit Security protects your code from AI-driven exploits. Get 10 free code scans here: https://coderabbit.link/ad-fireship-006 How Flock Safety turned cheap edge ML cameras into a warrantless tracking network and…