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DEV Community • 2026-08-01 15:13

I Keep Forgetting to Delete My AWS Test Resources, So I'm Building a Tool to Yell at Me Instead

We've all done it. You spin up an RDS instance to test something on a Friday afternoon. You attach an EBS volume to a t3.micro that you kill three days later — but the volume just... stays. You allocate a static IP for a load test, and the load test ends, but the IP doesn't know that. None of this shows up as an error. Nothing crashes. There's no red banner in the console screaming at you. It ju...

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4m read
DEV Community • 2026-08-01 15:12

React Mastery Series – Day 8: Understanding React Rendering & Component Lifecycle

Welcome back to the React Mastery Series! In the previous article, we learned about State in React and how state changes make our applications interactive. Today, we will understand one of the most important concepts for every React developer: How does React render components? Many developers know how to write React code, but understanding when and why React renders is what separates...

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5m read
DEV Community • 2026-08-01 15:11

Same DeepSeek V4 Flash, Different Agent: Why the Runtime Changes the Result

Same DeepSeek V4 Flash. Different runtime. Very different long-task outcomes. My local sample is bounded: Codex + Flash completed a long, cross-file, repeatedly verified deck task; Claude Code + Flash launched multiple reviews, but their quality was not independently verified. This supports different pairings, not a universal ranking. The useful unit is not a model ID. It is a complete runtime: ...

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2m read
DEV Community • 2026-08-01 15:09

The AI/ML Engineer Roadmap Nobody Actually Finishes (But You Should Try)

Okay real talk — if you've googled "how to become an AI/ML engineer" you've drowned in roadmap images that are just... a wall of logos. TensorFlow logo, AWS logo, Docker logo, arrows everywhere, zero actual explanation of what to do with any of it. So here's an actual phase-by-phase breakdown, with checkpoints, so you know when to move on instead of doom-scrolling more "10 skills you need" listic...

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2m read
DEV Community • 2026-08-01 15:09

Function Calling With a Local LLM to Drive Foundry: Fuzz, Read, Repeat

The first time I let a local model drive Foundry unsupervised, it spent eleven turns trying to fix a fuzz test by renaming the test function. Not changing the logic. Renaming it. testFuzz_withdraw, then test_fuzz_withdraw, then testWithdrawFuzz, each time running the suite and reading the same compiler error with fresh optimism. That experiment still turned into one of the more useful tools in my...

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6m read
DEV Community • 2026-08-01 15:07

Herdr is tmux for coding agents

The useful version of the AI productivity story is still boring: throughput goes up when more independent work can happen at the same time without losing control of the system. That is why Herdr is interesting. Not because it is another coding agent. It is not. Herdr is an agent multiplexer. The simplest explanation is "tmux for coding agents", but that only gets halfway there. Like tmux, it kee...

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6m read
Hacker News • 2026-08-01 15:07

Show HN: DSCode – Coding Agent Powered by DeepSeek

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1m read
DEV Community • 2026-08-01 15:05

Solon Multi-Environment Config: Six Loading Tiers, an In-File Segment Trick, and No Profiles API

If you've spent time with Spring Boot, you know the spring.profiles.active routine — one property, multiple application-{profile}.properties files, and a creeping suspicion that somewhere a prod config is silently falling back to dev defaults. Solon's answer is solon.env. Same concept, different design choices — and one pattern (solon.env.on in-file segments) that Spring has no direct equivalent ...

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5m read
DEV Community • 2026-08-01 15:00

Gemini Spark Brings Voice Dictation and In-Place Rewriting to the Mac Desktop

Google is expanding its native Gemini for Mac app with Gemini Spark, a desktop AI experience that brings voice-driven drafting and in-place text rewriting into the user's active workflow. The most consequential change is practical rather than cosmetic: users can dictate, draft or rewrite copy directly at the cursor in any window, with Gemini using context from the screen to turn spoken input into ...

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5m read
DEV Community • 2026-08-01 15:00

Stop Re-Explaining Yourself to Claude: Structure a Project That Remembers Your Work

Every new chat makes Claude a stranger again You explain the codebase. You paste the style guide. You re-describe the client, the constraints, the one legacy decision you have to live with. Then the chat gets long, you start a fresh one, and you do it all again. That re-briefing tax is a big part of why AI assistants still feel like a demo instead of a coworker. Claude Projects exist t...

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4m read
DEV Community • 2026-08-01 14:58

What a Portal's Resize Pipeline Actually Does to a Real Estate Listing Photo

A listing photo leaves the camera looking right. By the time a portal has resized it for a thumbnail grid and recompressed it for delivery, it can look flatter, softer, or faintly wrong in a way nobody can quite name. None of that requires a bug on anyone's part — every step is documented, default behaviour in the image libraries doing the work. We build CasaNova Labs, an AI studio for real estat...

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4m read
DEV Community • 2026-08-01 14:58

Building My First Chrome Extension as a Beginner: Content Analyzer Pro

Building My First Chrome Extension as a Beginner: Content Analyzer Pro Learning web development and SEO inspired me to build my first Chrome extension. I wanted a simple tool that could analyze content without relying on large online platforms, so I created Content Analyzer Pro. The extension helps users quickly review their content by providing useful writing statistics such as word c...

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𝚓𝚊𝚟𝚊𝚜𝚌𝚛𝚒𝚙𝚝 • 2026-08-01 14:54

[AskJS] Ottimizzazione dynamic img rendering in JS: Eager/Lazy + contentVisibility. Voi come gestite il primo fold?

Ciao a tutti! Sto ottimizzando il caricamento dinamico delle immagini per le schede dei giochi. Sto usando questa logica per bilanciare il caricamento immediato sopra la piega (above the fold) e il caricamento "lazy" per il resto: const img = document.createElement('img'); img.alt = (gioco.titolo || 'Gioco'); img.decoding = 'async'; img.style.contentVisibility = 'auto'; img.style.width =...

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DEV Community • 2026-08-01 14:54

How to Build a Customized Chat UI for n8n Chat Webhooks?

n8n's Chat Trigger node gives you a webhook that accepts a message and returns a reply. It does not give you a UI. If you're embedding that workflow on a real product, "reply in JSON" isn't good enough. You need a chat window that matches your brand, handles sessions, and doesn't leak your webhook URL to every visitor who opens dev tools. Here's how to actually build that, and where most tutorial...

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7m read
DEV Community • 2026-08-01 14:54

React Mastery Series – Day 7: State in React – Making Components Dynamic

Welcome back to the React Mastery Series! In the previous article, we explored Props, which allow parent components to pass data to child components. But what happens when the data needs to change over time? Think about applications you use every day: A shopping cart where items are added or removed. A banking app where the account balance updates after a transaction. A social media app where...

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5m read
DEV Community • 2026-08-01 14:53

Writing Agent Memories: What to Store and What to Skip

Not everything an agent sees is worth remembering. Store too little and it forgets what mattered; store everything and the memory fills with noise that drowns the signal at retrieval time. The extraction step — deciding what to keep and distilling it into clean, self-contained facts — is the most consequential and most overlooked part of a memory system. Memory begins with a decision ...

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3m read
DEV Community • 2026-08-01 14:48

I built an open, reproducible typing-speed test — and it won't show a number until it earns one

Search "average typing speed" and you'll get confident numbers — 40 WPM, 65 WPM, "professionals hit 75" — almost always with no passage, no method, and no dataset behind them. I wanted one I could actually defend, so I built a live typing test that collects an open, anonymized dataset and, crucially, refuses to publish an average until it has enough data to mean anything. It runs on Cloudflare Wo...

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DEV Community • 2026-08-01 14:46

React Mastery Series – Day 6: Props in React – Passing Data Between Components

Welcome back to the React Mastery Series! So far, we've learned: What React is Why React was created Setting up a React project Understanding JSX Building reusable components In the previous article, we learned that components are the building blocks of every React application. However, a component that always displays the same content isn't very useful. Imagine an e-commerce website displa...

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4m read
Newest questions tagged javascript - Stack Overflow • 2026-08-01 14:45

Javascript innerText not replacing existing text

I am creating a hangman type word game. I have a list of over 5000 words which I have included in a hidden div in the page. <div id="words" style="display: none;"> word1,word2,word3....word5925,word5926,word5927,word5928,word5929 </div> <script type="text/javascript" src="getwords.js"></script> I don't want my users to be able...

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𝚓𝚊𝚟𝚊𝚜𝚌𝚛𝚒𝚙𝚝 • 2026-08-01 14:41

[AskJS] Best practices for Javascript Local Dev Environment

I'm currently developing an internal tool to do work reporting. I know a lot of tool exists, but we do have specific requirements and there's already an MS Access database, which I can migrate into the new tool as well as use most of the tables as a data source. About me: I have experience with Javascript, HTML, CSS/SCSS/SASS, PHP, SQL. I want to optimize it, but since I mostly code in my freetime...

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2m read
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