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开发者 Dev.to

GlintCode: A Beginner-Friendly Language That Runs in the Browser

Introducing GlintCode ✨ I've been building GlintCode , a lightweight scripting language for the browser that runs on top of JavaScript. The goal is simple: make building browser apps easier with a clean, beginner-friendly API while still using the power of JavaScript under the hood. Features 🚀 Runs directly in the browser 📝 Uses <script type="glint"> 🌐 Built-in DOM helpers 🎨 Simple UI creation functions 🔁 Built-in loop helpers 📦 Optional module system ⚡ No build tools or compilation required Hello, World <script src= "https://fast4word.github.io/glintcode/glint.js" ></script> <script type= "glint" > page ( " Hello " ) heading ( " Welcome to GlintCode " , 1 ) paragraph ( " Your first Glint app! " ) button ( " Click Me " , () => { print ( " Hello from Glint! " ) }) </script> Why GlintCode? JavaScript is incredibly powerful, but for beginners or small browser projects it can sometimes feel more verbose than necessary. GlintCode provides a set of simple, readable functions that make creating interfaces and interacting with the page easier, while still letting you use JavaScript features whenever you need them. Because GlintCode runs on top of JavaScript, you can gradually learn the underlying language without giving up access to the browser's APIs. What's next? I'm continuing to expand GlintCode with new functions, modules, examples, and documentation. Future plans include additional built-in libraries, a richer module ecosystem, and more developer tools. I'd love to hear your feedback, suggestions, or ideas for features you'd like to see! GitHub: https://github.com/Fast4word/glintcode

Fast4word 2026-07-02 11:36 5 原文
开发者 Dev.to

ANSI Color Code Generator: Build Terminal Escape Sequences Visually

Stop memorizing ANSI escape sequences. I built a browser tool to generate them visually — pick colors, styles, and get the code ready to paste. Try it 🔗 ANSI Color Code Generator — DevNestio Features 3 color modes : 8-color, 256-color palette, RGB truecolor (24-bit) 8 text styles : Bold, Dim, Italic, Underline, Blink, Reverse, Hidden, Strikethrough Separate FG/BG : Set foreground and background colors independently 3 output formats : Shell ( echo -e ), Python ( print ), Raw escape sequence Live preview in a simulated terminal box How ANSI sequences work ESC [ <codes> m Multiple codes are separated by ; . Reset is ESC[0m . 8-color : codes 30-37 (FG), 40-47 (BG), 90-97 (bright FG) 256-color : ESC[38;5;<0-255>m for FG, ESC[48;5;<0-255>m for BG RGB truecolor : ESC[38;2;<R>;<G>;<B>m 256-color palette calculation function get256Color ( i ) { if ( i < 16 ) return standardColors [ i ]. hex ; if ( i < 232 ) { const n = i - 16 ; const r = Math . floor ( n / 36 ) * 51 ; // 255/5 = 51 const g = Math . floor (( n % 36 ) / 6 ) * 51 ; const b = ( n % 6 ) * 51 ; return `rgb( ${ r } , ${ g } , ${ b } )` ; } const v = ( i - 232 ) * 10 + 8 ; // 24 grayscale steps return `rgb( ${ v } , ${ v } , ${ v } )` ; } Output examples # Bold red text on black echo -e " \e [1;31mHello, Terminal! \e [0m" # RGB orange (Python) print ( " \0 33[38;2;255;128;0mOrange text \0 33[0m" ) Tested with 128 assertions covering code generation, color math, and format strings. Part of DevNestio — 115 free browser-only developer tools.

Dev Nestio 2026-07-02 11:36 10 原文
开发者 Dev.to

Bitwise Calculator: Visual 32-bit AND/OR/XOR/NOT/Shifts in Your Browser

I built a browser-based bitwise calculator that performs AND, OR, XOR, NOT, NAND, NOR, XNOR, arithmetic/logical shifts, and rotate operations on 32-bit integers — with a live clickable bit grid. Try it 🔗 Bitwise Calculator — DevNestio Features 13 operations : AND, OR, XOR, NOT A/B, NAND, NOR, XNOR, SHL, SHR, SHRA, ROTL, ROTR Visual 32-bit grid : Click any bit to toggle Operand A on the fly Multi-base input : Auto-detect 0xFF , 0b1010 , 0o17 , or decimal 4 output formats : Hex, decimal, binary (grouped), octal — all with copy buttons No server, no upload — everything runs in-browser The JavaScript integer trap Bitwise ops in JS coerce values to signed 32-bit integers. To get unsigned results you need >>> 0 : case NOT_A : return ( ~ a ) >>> 0 ; // without >>> 0, ~0 shows as -1 case XNOR : return ( ~ ( a ^ b )) >>> 0 ; case ROTL : return (( a << s ) | ( a >>> ( 32 - s ))) >>> 0 ; Rotate without a dedicated instruction JavaScript has no ROL/ROR, so combine two shifts: // Rotate left by s bits (( a << s ) | ( a >>> ( 32 - s ))) >>> 0 Tested with 99 assertions All core logic — parsing, computing, edge cases like XNOR with ~0xFF = 0xFFFFFF00 — covered in a Node.js test file using assert . Part of DevNestio — a growing collection of 115 free browser-only developer tools.

Dev Nestio 2026-07-02 11:35 11 原文
AI 资讯 Dev.to

How I Travel for Work

Almost every time I'm working out of a coffee shop, and sometimes at the airport, someone spots the stand my laptop is sitting on and asks, "What is that? Where'd you get it?" It happens enough that I figured I'd just write down what I actually travel with, for conferences or any time I'm not working out of my home office. Some links in this post are affiliate or referral links, which means I may earn a small commission or credit at no additional cost to you. My work travel gear list Roost Laptop Stand . This is the one that starts the conversation. It folds down into something small enough to slide into a bag pocket, and it raises my laptop screen to a much more comfortable height, so I'm not hunched over it all day. Apple Magic Trackpad (White) . I used to use this at my desk too, but work gave me an MX Master 3, and I've since moved on to the MX Master 4. The Magic Trackpad is strictly a travel tool these days. A tiny, folding Bluetooth keyboard. I bought a Jelly Comb Ultra Slim Folding Bluetooth Keyboard years ago and I don't think that exact model is even sold anymore, but the category is the takeaway here: a folding keyboard that fits in a jacket pocket is genuinely great to have on hand. An Anker 25,000mAh laptop power bank with three USB-C ports capable of delivering up to 100W. This one's big enough to actually charge my MacBook when I'm away from an outlet, rather than just topping up my phone. An Anker 727 Charging Station . This is basically my travel power hub: two USB-C ports, two USB-A ports, two AC outlets, and a detachable five-foot extension cord, all in something about the size of a phone. It can charge up to six devices at once and delivers up to 100W, so when I have access to an outlet, I use it for my MacBook, phone, watch, AirPods, and anything else that needs power. I leave the regular Mac power brick at home and bring this, the power bank, and my MagSafe cable instead. It looks like this exact model is currently unavailable, but it's worth s

Nick Taylor 2026-07-02 11:27 11 原文
AI 资讯 Dev.to

AI Is Entering a Phase of Extreme Uncertainty

Visibility Collapse in the Post-LLM Engineering Stack Artificial intelligence is still improving. But something important has changed in how that improvement is perceived. For developers and engineers working closely with frontier models, the experience is no longer one of explosive capability jumps. Instead, it feels like: incremental improvement under increasing structural constraints This shift is not about stagnation. It is about uncertainty in how AI capability is exposed, deployed, and interpreted. Capability vs Visibility: the new separation Recent frontier model systems (such as Fable 5, as described in industry discussions) highlight an important architectural pattern: Certain capabilities are no longer fully exposed in production environments: advanced coding assistance deep debugging autonomy bioinformatics reasoning cybersecurity-related reasoning This does not necessarily imply reduced model capability. Instead, it reflects a system-level separation: model capability ≠ deployed capability System interpretation: Modern AI stacks are becoming layered systems: Raw Model → Safety Layer → Policy Filter → Deployment Interface → User Access This means developers are no longer interacting with models directly. They are interacting with constrained capability surfaces. Perceived slowdown in LLM progress Despite continued benchmark improvements: reasoning scores increase gradually multimodal capabilities expand tool-use frameworks improve The perceived acceleration of AI has weakened. Compared to 2022–2023, there are fewer qualitative jumps. From an engineering perspective, this suggests a transition: from capability discontinuity → capability smoothing In other words: AI is still improving, but improvements are less visible at the system interaction level. Economic mismatch: scaling vs returns The AI ecosystem is currently defined by a structural tension: Inputs: massive GPU infrastructure investment multi-billion-dollar training runs hyperscaler-scale capital a

luka 2026-07-02 11:24 5 原文
AI 资讯 Dev.to

glasp v0.3.0 & v0.4.0 — PKCE Support, Timeouts, and Retries

Last time I wrote about using glasp, a Go-based, npm-free CLI for Google Apps Script (GAS), in GitHub Actions. Previous post: Lean, Fast, Simple — npm-free GAS Deployment on GitHub Actions with glasp This time, a quick rundown of what landed in v0.3.0 and v0.4.0 . v0.3.0: PKCE support glasp login now supports PKCE (RFC 7636) as an opt-in. glasp login --pkce # or GLASP_USE_PKCE = 1 glasp login Each login generates a code_verifier and sends an S256 code_challenge to Google. It's a defense against authorization code interception, and it coexists fine with the existing client_secret flow. It only applies to the interactive login — --auth / GLASP_AUTH for CI is untouched. Off by default. Worth turning on if you're in a stricter security environment. v0.4.0: Timeouts and retries The focus here is basically "can this run unattended in CI/CD without falling over." Timeouts Script API requests previously had no timeout — a stuck request could hang the job indefinitely. v0.4.0 adds a 180s default. glasp push --timeout 60 # set to 60s glasp push --no-timeout # disable Also configurable via GLASP_TIMEOUT / GLASP_NO_TIMEOUT env vars or timeoutSeconds in .glasp/config.json . Priority: --no-timeout > flag/env > config > default. If the config file is broken, it warns instead of silently falling back. Retries Transient failures (5xx, 429) now get retried automatically. glasp push --max-retries 5 glasp push --no-retries 3 retries by default (up to 4 attempts total) Only applies to idempotent commands: push , pull , clone , list-deployments Commands with side effects ( create-script , run-function , etc.) are never retried Exponential backoff with jitter, respecting Retry-After It's implemented as a single http.RoundTripper wrapper, so the Google SDK itself isn't touched — same pattern as the timeout implementation. retryTransport → oauth2.Transport → http.DefaultTransport Some refactoring, too Internal packages got reorganized ( #107 ), and the hand-rolled retry transport was swappe

akihito 2026-07-02 11:22 11 原文
AI 资讯 Dev.to

I Spent 40 Minutes at 11pm Debugging a Deploy That Wasn't Broken

I once spent forty minutes at eleven at night debugging a deploy that wasn't broken. The release script ran the database migration, the migration threw connection refused , the script exited non-zero, the deploy rolled itself back, and I got paged. So I did the things you do. I read the migration. I read the logs. I checked the database — it was up, it was healthy, it accepted my connection instantly. I re-ran the deploy and it worked. I chalked it up to gremlins and went to bed, which is the part I'm not proud of, because it happened again two days later. That time I watched the timing: the script brought up a fresh database container and started the migration about six seconds before Postgres finished initializing and began accepting connections. The migration was racing the database's boot. Most of the time it won. The times it lost, I lost forty minutes. The script wasn't wrong about anything except one assumption: that a dependency is ready the instant you ask for it. In production, dependencies are eventually ready That's the mental model shift. Networks blip. A service you call returns a 503 for the two seconds it takes to finish a rolling restart. An API rate-limits you with a 429 it fully expects you to retry. A fresh container's database isn't accepting connections for its first few seconds. Treating the first failure as fatal turns every one of these normal, transient conditions into a paged engineer — and the script that handles them isn't smarter — it declines to give up on the first try. But retrying naively is its own trap. Retry instantly and you hammer a recovering service into staying down. Retry forever and a genuinely dead dependency hangs your script indefinitely. Retry a 404 and you wait a minute to confirm what you already knew. Good retries are bounded, backed off, and selective. A retry function you can reuse anywhere #!/bin/bash # Purpose: survive transient failures instead of dying on the first error set -euo pipefail CHECK = "✓" CROSS = "

Anguishe 2026-07-02 11:21 12 原文
开发者 Dev.to

How I Built a Zero-Friction Browser Gaming Platform (Zero Sign-Ups, Zero Downloads)

I built GameDeck — a gaming platform where you pick a badge, type a name, and play. That's it. No accounts, no launcher downloads, no tracking. Here's how I built it and what I learned. The stack Frontend : Pure browser-based, vanilla JS Deployment : Google Cloud Run i18n : 3 languages (EN, 简体中文, 繁體中文) with instant switching Identity : Emoji badge system — no usernames, no passwords The architecture The entire app is a single-page browser app. No backend for user auth (because there is no auth). Sessions are ephemeral — nothing is stored. Multi-language i18n Adding 3 languages was the #1 feature request within 24 hours of launch. Simple key-value translation maps, no framework needed. The badge identity system Instead of usernames, users pick an emoji badge (🎮 ⚡ 🦊 🐉 🐼 🚀 🐱 🐯 🌟 🍿). This turned out to be the most talked-about feature. It's fun, zero-friction, and surprisingly expressive. Privacy by default No data collected. No cookies. No analytics. Just the game. Privacy isn't a feature — it's the absence of features that invade privacy. What I'd do differently Multi-language from day 1 More game variety before launch Better mobile responsiveness Try it : https://gamedeck-804028808308.us-west2.run.app Source : Built solo, open to questions! Would love feedback from the dev community — especially on the browser game architecture and i18n approach.

M Walter 2026-07-02 11:21 7 原文
AI 资讯 Dev.to

العودة إلى Fable 5: كيفية إعادة توجيه أحمال عمل API بأمان

عندما توقف Claude Fable 5 عن العمل في 12 يونيو 2026 بموجب ضوابط التصدير الأمريكية، فعل فريقك ما فعلته أغلب الفرق: أعاد توجيه الإنتاج إلى Claude Opus 4.8 أو Sonnet 4.6، أصلح الأوامر المعطلة، وتجاوز الانقطاع. رُفعت الضوابط في 30 يونيو، وعاد Fable 5 للعمل اعتبارًا من 1 يوليو عبر Claude.ai ، وواجهة برمجة التطبيقات API، وClaude Code، وCowork. أكدت Anthropic إعادة النشر الكامل في إعلانها الرسمي . جرّب Apidog اليوم الخطوة السهلة هي التراجع عن آخر تغيير في التكوين واعتبار المشكلة منتهية. لا تفعل ذلك. الخدمة التي تعود إليها ليست بالضرورة مطابقة سلوكيًا لما استخدمته قبل الانقطاع: أُعيد تدريب طبقة الأمان، وقد تختلف جاهزية المنصات السحابية حسب المنطقة، وأصبح Opus 4.8 الذي استخدمته لثلاثة أسابيع خط الأساس العملي للمقارنة. تعامل مع العودة إلى Fable 5 كترحيل إنتاجي: تحقق، اختبر، قارن، ثم اطرح تدريجيًا. جرد ما تغير أثناء غيابك بين 12 يونيو و1 يوليو، تغيرت ثلاثة أشياء. وشيء واحد بقي كما هو. 1. أُعيد تدريب مصنف الأمان يأتي Fable 5 المعاد نشره مع مصنف أمان أُعيد تدريبه لاستهداف تقنية كسر حماية أُبلغ عنها أثناء الانقطاع. تقول Anthropic إنه يحظر أكثر من 99% من محاولات استخدام هذه التقنية. النقطة المهمة للتطبيقات الإنتاجية: الطلبات المصنفة لا تفشل بالضرورة. تُعاد توجيهها تلقائيًا إلى Claude Opus 4.8. الرد يحمل إشعارًا بذلك. أكثر من 95% من الجلسات لا ترى أي تراجع. هذا يعني أن أوامرك تعمل الآن أمام طبقة أمان مختلفة قليلًا. لا تفترض أن نتائج أوائل يونيو ما زالت صالحة؛ أعد الاختبار. 2. تحقق من حالة المنصة السحابية أعاد Amazon Bedrock دعم Fable 5 في 1 يوليو، في نفس يوم واجهة برمجة التطبيقات الأساسية، لكن ملفات تعريف الاستنتاج الإقليمية قد تُطرح بشكل غير متساوٍ. قد يكون Google Vertex AI وMicrosoft Foundry ما زالا في مرحلة اللحاق. توجيه Anthropic للمنصات المعلقة هو "بأسرع وقت ممكن"، بدون تاريخ محدد. إذا كنت تستخدم موفرًا سحابيًا، لا تغيّر الإنتاج قبل التحقق من: توفر Fable 5 على المنصة. توفره في المنطقة التي تستخدمها. توافق اسم النموذج أو ملف تعريف الاستنتاج مع تكوينك الحالي. 3. خطط الاشتراك لها تاريخ يجب مراقبته إذا كان أعضاء الفريق يستخدمون Claude عبر خطط الاشتراك بدلًا من مفاتيح API، فهناك تغ

Yusuf Khalidd 2026-07-02 11:17 6 原文
AI 资讯 Dev.to

How I Optimized My Portfolio Website: Fast Loading, SEO-Friendly, and Easy to Maintain published: true tags: webdev, portfolio, seo, performance

Your portfolio is often the first impression a recruiter, client, or fellow developer gets of you. If it loads slowly, ranks nowhere on Google, or is a pain to update, it's working against you instead of for you. Here's how I approached optimizing mine — covering performance, SEO, and everyday usability. 1. Start With a Lightweight Foundation The biggest performance wins come before you write a single line of custom code. Pick a lean stack. Static site generators (Astro, Next.js with static export, Hugo, or even plain HTML/CSS/JS) ship far less JavaScript than a full SPA framework for a mostly-static portfolio. Avoid unnecessary UI libraries. A heavy component library for a five-page site adds kilobytes you don't need. Hand-roll simple components instead. Use system fonts or self-host web fonts. Pulling fonts from a third-party CDN adds an extra DNS lookup and render-blocking request. Self-hosting with font-display: swap avoids layout shift and speeds up first paint. 2. Optimize Images (This Is Usually the Biggest Win) Images are almost always the heaviest assets on a portfolio site. Convert images to WebP or AVIF — typically 30–50% smaller than JPEG/PNG at the same visual quality. Resize before upload. Don't serve a 4000px-wide photo in a 600px container. Use loading="lazy" on below-the-fold images so the browser doesn't fetch them until needed. Add explicit width and height attributes to prevent layout shift (this also helps your Cumulative Layout Shift score). <img src= "/project-thumb.webp" alt= "Project screenshot" width= "600" height= "400" loading= "lazy" /> 3. Minimize and Defer JavaScript Ship only the JS a page actually needs — code-split per route if your framework supports it. Defer non-critical scripts (analytics, chat widgets) with defer or load them after the page is interactive. Audit your bundle with a tool like source-map-explorer or your framework's built-in bundle analyzer to catch unexpectedly large dependencies. 4. Nail the SEO Basics Good perf

MD Nayeem Miah 2026-07-02 11:12 9 原文
AI 资讯 HackerNews

Show HN: Meow – The 4th and final JavaScript runtime and toolchain

Yes, I said final. Fight me in the comments. But seriously: there are basically exactly 3 serious JS runtimes in the world. (Now 4... or 1, idk). Why? Because the modern JS ecosystem is a fragmented, bloated nightmare. Node, pnpm, tsc, eslint, prettier, vite. Each spins up its own V8 instance, parses your codebase from scratch, and leaves a graveyard of .json configs in your root directory. meow squishes it all into one cute 82MB binary. It’s a drop-in Node replacement, ultra-fast package manage

ccheshirecat 2026-07-02 11:11 5 原文
AI 资讯 Dev.to

The Silent Sitemap Bug That Blocked Google From Indexing My Sites

When I checked Google Search Console after a month, only 2 of my 8 sites were indexed. The other 6 had zero pages in Google's eyes. No penalty, no error banner. Just silence. The bug My build script generated the sitemap by mapping over page objects. Somewhere a URL field was an object, not a string. So the sitemap shipped lines like: <url><loc> https://example.com/[object Object] </loc></url> Google fetched the sitemap, saw garbage URLs, and quietly skipped the whole file. No crawl, no index. How I caught it GSC > Sitemaps > it said "Success" but "Discovered pages: 0". That mismatch is the tell. I opened the raw sitemap.xml in the browser and searched for [object . There it was. Root cause: url: page.url where page.url was itself { path, params } , not a string. The fix // before loc : page . url // -> [object Object] // after loc : `https://livephotokit.com ${ page . path } ` Redeployed, resubmitted the sitemap, and requested indexing on the core pages. Pages started landing in the index within a couple of days. Takeaway A "Success" status on your sitemap does not mean Google read your URLs. Always open the raw XML and eyeball it. One bad [object Object] can silently sink an entire site. I'm building LivePhotoKit and a handful of other small tools solo with AI. Sharing the real bugs as I hit them.

gan liu 2026-07-02 11:10 8 原文
AI 资讯 Reddit r/MachineLearning

[D] Self-Promotion Thread

Please post your personal projects, startups, product placements, collaboration needs, blogs etc. Please mention the payment and pricing requirements for products and services. Please do not post link shorteners, link aggregator websites , or auto-subscribe links. -- Any abuse of trust will lead to bans. Encourage others who create new posts for questions to post here instead! Thread will stay alive until next one so keep posting after the date in the title. -- Meta: This is an experiment. If the community doesnt like this, we will cancel it. This is to encourage those in the community to promote their work by not spamming the main threads. submitted by /u/AutoModerator [link] [留言]

/u/AutoModerator 2026-07-02 10:15 5 原文