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Programming

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ProgrammingDEV Community ·

Why agency quote forms should branch by intent before asking for a budget

The author argues that agency contact forms fail when they treat every visitor the same, since long forms deter people who only want to talk. A better approach is to ask first whether the visitor wants a quote or a conversation, then route each group down a different-length path. The write-up suggests allowing an 'I don't know yet' answer, writing helpful error messages, and saving drafts to localStorage with safe fallbacks. It also recommends a honeypot field positioned off-screen to deter cheap bots without a captcha. The author has packaged these ideas as a dependency-free React component called QuoteFlow.

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ProgrammingHacker News ·

Blog post explains parser combinators, a technique for building parsers from small composable pieces

A blog post published on t3.at introduces parser combinators, a programming technique for constructing parsers. The article is shared on Hacker News, where it received 12 points and one comment. The provided source material contains only the title, URL, and engagement figures, so the post's specific examples and arguments cannot be confirmed here. Readers interested in the technical details would need to consult the original article directly.

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ProgrammingDEV Community ·

Five PDF compressors tested on a signed file; two deleted the signature entirely

A developer signed a fictional one-page PDF and ran it through five common compressors, with every output failing signature validation. Four tools retained the original signature dictionary, but the byte ranges no longer matched the rewritten file, so validators judged them invalid. Two tools, Ghostscript and iLovePDF, removed the signature field altogether, producing files that show no error and may still display a visible signed-by stamp. The author notes the danger is greatest in the second case, since recipients have no reason to check. The tests found that local and cloud-based tools alike rewrote the file bytes, so the problem was not tied to where processing happened.

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ProgrammingDEV Community ·

OLED Monitor Shipments Set to Surge in 2026, Led by Dual-Mode Models

Market research firm Omdia projects that 6.1 million OLED monitor panels will ship in 2026, a 79% increase over 2025, with 7.5 million expected in 2027. TrendForce data shows OLED monitor shipments nearly doubled year over year in Q2 2026, largely driven by new 27-inch models. OLED still accounts for only a small share of a total monitor market of roughly 125-130 million units annually. Notable launches include LG's dual-mode UltraGear 32-inch, which switches between 4K 240Hz and 1080p 480Hz, and ASUS's third-generation ROG Swift PG32UCDM. Manufacturers are also addressing earlier criticisms such as text fringing and burn-in, while cheaper production methods point to lower prices through 2027.

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ProgrammingDEV Community ·

Edited signed PDFs can pass pdfsig validation, so ByteRange must be checked against file size

A developer found that pdfsig reported a signed PDF as valid after a one-line edit appended to the file, while pyHanko flagged the same change as an illegal modification. The discrepancy arises because pdfsig only verifies the hash of the originally signed bytes, which remained unchanged. To detect post-signing changes, the author wrote a check comparing each signature's ByteRange end offset with the file size, which distinguishes full coverage, appended updates, and rewritten files. Rewritten copies from several PDF tools, including a compressor, showed ranges extending past the end of the file. The author notes that a heuristic based on file size alone may fail for rewrites that grow the file, and suggests counting %%EOF markers as a possible fix.

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ProgrammingDEV Community ·

Quy ước đặt tên trong Java: CamelCase, PascalCase và các nguyên tắc chung

Bài viết giới thiệu các quy ước đặt tên trong Java nhằm giúp mã nguồn dễ đọc, dễ hiểu và dễ bảo trì hơn. Quy ước CamelCase, với chữ cái đầu của các từ sau được viết hoa, thường được dùng cho biến và phương thức. Quy ước PascalCase, trong đó mọi từ đều bắt đầu bằng chữ hoa, được áp dụng cho class và interface. Ngoài ra, người lập trình nên tránh ký tự đặc biệt và từ khóa, đồng thời chọn tên ngắn gọn, có ý nghĩa và nhất quán. Việc tuân thủ các quy ước này còn giúp giảm lỗi đánh máy và tạo thuận lợi cho sự cộng tác giữa các lập trình viên.

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ProgrammingDEV Community ·

DishReactions: free offline app ranks restaurant dishes by customer reaction

DishReactions is a free, offline web app that lets small restaurant staff log a star rating and emoji reaction for each order in about ten seconds. The app updates a ranked bar chart of average dish ratings, highlights a top-rated winner, and offers a CSV export for weekly owner reports. All data is stored locally in the browser, so customer feedback never leaves the device and the tool works without internet. The developer, who tested it with a restaurant in Karachi, reported that the chart showed a biryani outperforming a karahi that the owner had assumed was the best seller. The developer plans a paid tier of about Rs. 2,000 per month and is considering Urdu support and table QR codes for direct customer ratings.

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ProgrammingDEV Community ·

CoddyRun adds coding challenges, live chat, 54 badges and public profiles

The coding learning platform coddyrun.fr has rolled out a major update over recent weeks. New features include coding challenges and a live chat with member presence, anti-flood protection and a profanity filter. A community bot named Coddy shares member projects, and users can hide its announcements. The update also adds 54 collectible badges, public profiles, a community FAQ, avatar seals and a guest mode, and teachers or developers can request a special status.

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ProgrammingDEV Community ·

Listing Lab Runs a Private Browser-Based AI Copywriter for Small Online Sellers

Listing Lab is an open-source, MIT-licensed tool that generates product titles, descriptions, highlights, and search tags for independent Etsy, eBay, and Facebook Marketplace sellers. It is built with React, TypeScript, and Transformers.js and runs the open-weight SmolLM2-360M-Instruct model entirely in the browser. The model downloads once on first use, is cached afterward, and uses WebGPU when available with a CPU/WASM fallback, so seller data stays on the device. The developer positions it as a one-time-purchase alternative to subscriptions and metered API fees, though the first download is large and browser support varies. A public demo and repository are planned, and the developer intends to test with sellers before publishing.

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ProgrammingDEV Community ·

Compressing signed PDFs with common tools breaks or removes their signatures

A developer tested whether compressing a signed PDF before archiving preserves its digital signature. They signed a one-page test document with a self-made root certificate and then ran it through five compression or rewrite tools. Every tool rewrote the entire file, so the signed byte ranges no longer matched the signed hash. Some outputs left a signature that validators flagged as invalid, while Ghostscript and iLovePDF removed the signature field altogether. The author notes that changing a signed file without breaking it requires an incremental update appended after the original bytes.

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ProgrammingDEV Community ·

Claude Code Usage Limit Mid-Task: Continue in Codex on the Same Worktree

A developer whose Claude Code session hit a usage limit mid-refactor can hand the same git worktree to OpenAI's Codex and keep working. Because Codex starts in the same folder, it also inherits ignored files such as .env and node_modules, which is why reusing the worktree is preferred over creating a new one. The conversation history and Claude's auto-generated memory do not transfer, so the plan and dead ends must be written down. The article recommends moving project rules from CLAUDE.md into AGENTS.md, which Codex reads, and importing that file back into CLAUDE.md. It also provides a handoff.sh script that generates a Markdown summary of commits, changed files, TODOs and test status for the next agent.

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ProgrammingDEV Community ·

Why AI coding tools should share one memory instead of keeping separate copies

AI coding assistants increasingly keep persistent memory of project decisions, fixes and preferences, but each tool typically maintains its own store. Users who switch between tools or machines end up re-explaining the same context and watching their separate memories drift out of sync. The article argues that repeated briefings waste time and that stale or conflicting memories can lead assistants to suggest outdated choices. Manually maintained rules files such as CLAUDE.md or AGENTS.md help but only capture what users remember to write down. The author's proposed remedy is a single, user-controlled memory that is tagged by project, supports cross-project recall, is inspectable and editable, and stays local rather than on a vendor server.

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ProgrammingDEV Community ·

Twelve-Section Software SOW Template and Guide for Build Projects

A software statement of work defines what will be built, what gets delivered, how acceptance works, the timing, and how changes are handled. This guide offers a twelve-section template for build work that follows a discovery phase, with notes on what each section should contain. It frames the SOW as narrative guidance that answers six core questions about purpose, scope, deliverables, acceptance, milestones and change. The article notes that the SOW often sits under a master services agreement holding the legal terms. It also stresses that the guidance is practical rather than legal advice and that contracts should be reviewed by a lawyer.

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ProgrammingDEV Community ·

Browser-Based Video Tools Offer Edits Without Uploading Files to Servers

A developer on DEV Community argues that many online video editors upload user footage to remote servers, creating privacy concerns for sensitive material. Client-side processing, enabled by WebCodecs and WebAssembly builds of FFmpeg, lets browsers handle tasks like compression, trimming, and format conversion locally. The article highlights Private Video Tools, a free suite of single-purpose utilities that run entirely in the browser without accounts or watermarks. The author notes the limitations: these tools suit small everyday edits rather than full timeline editing, and performance depends on the user's hardware. The piece frames local processing as a broader shift away from cloud-only workflows.

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ProgrammingDEV Community ·

Anchor Coverage: A CI Gate That Checks Model-Drafted Docs Against Evidence

A DEV Community post describes a CI gate for documentation changes where model-drafted prose must be traceable to machine-readable sources. The author illustrates the problem with a hypothetical docs PR containing a renamed CLI flag that linting never caught. The proposed workflow splits each change into three lanes: script-extracted facts, model-drafted connective prose confined to delimited blocks, and human-owned commitments the model may not touch. A Python script, anchor_gate.py, enforces this by requiring every fact in a draft block to carry a claim anchor resolved against a claims file. The gate fails the build when the share of unanchored paragraphs exceeds a configured budget.

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ProgrammingDEV Community ·

Argo CD rollback: choosing between git revert and argocd app rollback

A bad image tag merged at 16:50 and auto-sync deployed it, causing 500 errors in the checkout service. Teams facing this must pick between reverting the commit in Git or running an Argo CD rollback directly against the cluster. Both approaches work but differ in how they interact with auto-sync, audit trails, and later fixes. The right choice depends on sync policy, branch protection rules, the scope of affected applications, and whether stateful changes such as migrations are involved. Because sync and history behavior has changed across Argo CD releases, the article advises checking the official documentation for the installed version.

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ProgrammingDEV Community ·

Claude Code's allow_large setting: how to read large files without truncation

A guide explains how Claude Code handles oversized file reads and why a read can appear successful while only covering the beginning of a file. Per a Claude Code docs issue, this partial-view behavior arrived around version 2.1.145. Previously, reading an oversized file in full failed with a 'file content exceeds maximum allowed tokens' error, which older tutorials still reference. The guide recommends searching when the target is known, using offset and limit to read specific sections, and using allow_large when the whole file is needed and fits. For heavy reading where only conclusions matter, it suggests delegating to a subagent with its own context window.

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ProgrammingDEV Community ·

Token-heavy spans and slow spans differ in agent runs, so trace ledgers need both rankings

A developer on DEV Community argues that the span that uses the most tokens in an agent run is often not the one that takes the longest. Standard trace viewers sort spans by start time, which hides the cost picture an operator needs. The proposed fix is a per-run span ledger built from six core fields, including token counts logged per span and a retry marker. The author supplies a sample six-span fixture containing a retried tool call and a slow test step, along with a Python script that reads and orders the spans. The approach also adds a deterministic budget breaker that can be tested, so runs halt before exhausting their allowance.

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ProgrammingDEV Community ·

IBM Patches 25 Langflow Flaws, Including Critical Dependency Confusion Bug

IBM has issued a security bulletin covering 25 vulnerabilities in Langflow OSS versions 1.0.0 through 1.12.2. Two are rated critical and include a dependency confusion flaw (CVE-2026-93675) and injection issues that require no login or user action. Most remaining flaws affect authenticated users and can enable sandbox escapes or deserialization abuse. IBM reports no known exploitation in the wild and recommends upgrading to Langflow 1.12.3. Until patched, operators should restrict internet exposure, limit flow editing permissions, and rotate stored credentials.

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ProgrammingDEV Community ·

Fetching YouTube transcripts from the cloud: matching the spoken language

The developer of Linkee, a link-summarizing app, found that YouTube caption scraping worked locally but failed on cloud servers because YouTube blocks datacenter IP addresses. They switched to the Supadata transcript API, using mode=native to avoid per-minute billing for generated transcripts. A second problem appeared when a transcript came back in a translated caption language instead of the spoken one. The fix uses YouTube's Data API to determine the video's spoken language, either from the declared audio language or from the auto-generated caption track. This keeps transcripts in the language the speaker actually uses, at negligible cost within the free quota.

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