今日已更新 294 条资讯 | 累计 31122 条内容
关于我们

今日精选

HOT

最新资讯

共 31122 篇
第 1038/1557 页
AI 资讯 HackerNews

Ask HN: What tools are you using for AI-assisted code review?

My team (around 40 people who write code) is evaluating tools for AI-assisted code review. The market appears to be rife with options, so before starting a series of free trials, I’d like to ask a knowledgeable crowd. What tools or services are you using? Do you use them just for code review, or for other purposes as well, such as incident response or branch management? Why did you choose them, and what do you like or dislike about them?

agos 2026-06-19 00:25 5 原文
AI 资讯 Reddit r/programming

How Modern Indexing works in PostgreSQL- In depth explanation of how Indexing in PostgreSQL works and what enahncements Postgres has adapted that makes Indexing more faster.

Thinking about indexing, we know a only a big picture that uses B-Tree structures in memory, but in modern DBMs systems there are some enhancements introduced in indexing where systems like PostgreSQL are utilizing some new OS system calls like io_uring to make syncrhonous IO reading, also direct retrieval of record from disk using functions like fseek() and in memory optimization of traversing like applying binary search on leaf page. PostgreSQL always keeps a file for indexing, unlike MySQL where it only keeps an indexing file for non-clustered indexing, and clustered indexing is calculated directly from the table, it is interesting to study the indexing file structure as well Index file structure has line pointers, TID called as tuple ID Tuple is the column value, the same column you registered for indexing, by using which Postgres calculates the actual physical address of the records from the disk to fetch it directly. Postgres has another interesting feature, while creating an index, it always sorts data and maintains ranges of pages in page 0 of the indexing, where Postgres can identify which page to look for and then load that page into memory, and then it becomes a leaf page, then binary search is performed to get the actual TID so that the record can be fetched directly For an in-depth explanation about the index file structure, loading the index file into memory, and then searching for the actual record's address, check out the given link submitted by /u/Ok_Stomach6651 [link] [留言]

/u/Ok_Stomach6651 2026-06-19 00:05 5 原文
开发者 Reddit r/programming

Story of Semicolon

I had always wondered, why ";"? And the number of times, I have been frustrated because of this little guy, missing it somewhere, adding an extra somewhere, I really wanted to learn about it. So today I did, and I thought I might share it with you guys! Story of Semicolon. submitted by /u/Mastbubbles [link] [留言]

/u/Mastbubbles 2026-06-19 00:03 5 原文
AI 资讯 The Verge AI

Amazon employees say they’re facing termination for backing data center limits

When three Amazon software engineers testified earlier this month at Seattle City Council hearings about data centers, they started their testimony by citing a city law barring employment discrimination over political speech. Now, they're accusing their employer of breaking that law by retaliating against them. On June 10th - one week after the hearing, and […]

Hayden Field 2026-06-19 00:00 8 原文
AI 资讯 Dev.to

7 Alternatives to Building SaaS Backlogs That Never Get Finished

Most SaaS ideas don’t fail because of bad ideas. They fail because the execution gets stuck in an endless setup loop. You start with energy, then slowly get buried in: auth systems, billing, dashboards, SEO, analytics, and infrastructure decisions. By the time the “real product” should begin, momentum is already gone. Here are 7 practical alternatives to building SaaS in a way that never gets finished. 1. Nexora (start with a working SaaS foundation) Instead of rebuilding everything, Nexora gives you a production-ready base so you can focus on actual features. Includes: Authentication system Stripe billing User dashboards SEO pages Blog + docs structure Clean Next.js architecture 🔗 https://nexora.collabtower.com/ 👉 Best for founders who want to ship instead of setup. 2. Build-from-scratch Next.js projects The most common approach. You get: Full control Flexible architecture But you also get: Weeks of setup Repeated boilerplate work High chance of burnout before launch 3. SaaS boilerplates (minimal versions) Lightweight starter kits with: Auth Basic UI Simple Stripe setup But usually missing: Real dashboards SEO systems Production-level structure 4. Supabase-first builds Backend-focused setups. You get: Database Auth APIs But still need to build: Billing UI system Marketing pages SaaS structure 5. Low-code SaaS tools Fast visual builders. Pros: Quick UI creation No heavy coding Cons: Limited flexibility Hard to scale complex SaaS logic Platform dependency 6. AI-generated starter apps AI tools can scaffold SaaS apps instantly. Pros: Fast starting point Cons: Inconsistent structure Requires cleanup Not production-ready out of the box 7. Tutorial-based SaaS builds Many developers still learn SaaS by following tutorials step-by-step. Pros: Educational Cons: Slow Fragmented Hard to turn into real production apps Final takeaway Most SaaS workflows fail before launch because they repeat the same mistake: They start from zero every single time. That creates unnecessary setup

Esimit Karlgusta 2026-06-18 23:53 5 原文
AI 资讯 Dev.to

Securing AI-Generated Bash Scripts Before You Run Them

Bash is the easiest language for AI to write and the easiest language to get devastating output from. A 20-line script that "just cleans up old files" can recursively delete a home directory because the model assumed a variable would always be set. A "simple log shipper" can write your secrets to a remote server because the model used set -x for debugging and forgot to remove it. I have run AI-generated bash that I should not have. Most engineers I know have too. After enough close calls, there's a short checklist that catches the worst of it. This is that checklist. The five things to check before running any AI-generated bash 1. Does it start with a strict pragma? The first lines of any non-trivial bash script should be: #!/usr/bin/env bash set -euo pipefail IFS = $' \n\t ' What each does: set -e — exit on any command failure. Without this, a failure in line 5 doesn't stop the script from happily running lines 6-50. set -u — error on undefined variables. This is the one that saves you from rm -rf $UNDEFINED/ . set -o pipefail — propagate failures through pipes. Without it, failing-command | grep something succeeds because grep succeeds. IFS=$'\n\t' — sane field splitting. Defends against word-splitting bugs in filenames. If the AI-generated script doesn't have these, add them and re-read the script. You'll often discover bugs the pragma now flags. 2. Is every variable expansion quoted? # Wrong rm -rf $TARGET_DIR # Right rm -rf " $TARGET_DIR " The wrong version is what causes the "I deleted the root directory" stories. If $TARGET_DIR is empty or contains a space, the command becomes rm -rf (delete current directory) or rm -rf foo bar (delete two unintended things). Models default to the wrong version about half the time because the right version is harder to write in chat ("escape the quotes!") and the wrong version is what most blogs show. Fix: When reading AI bash, mentally check every $VAR for quotes. Add them if missing. This is the single biggest source of bas

James Joyner 2026-06-18 23:51 11 原文
AI 资讯 Dev.to

I built a CLI that generates .env files so I never read docs again

# EnvForge BETA v1.1 ⚡ Structured .env scaffolding for modern applications. Generate, validate, and protect environment variables for 14+ services – without ever opening a docs page. Github repo [ https://github.com/Jos3456/envforge ] NPM version (https://img.shields.io/npm/v/envforge-dev) MIT License (https://img.shields.io/badge/License-MIT-yellow.svg) ## Installation bash npm install envforge-dev **Requirements:** Node.js 18 or later. --- **## Quick Start** bash # 1. Generate an .env file and choose your providers envforge init # 2. Fill in your actual credentials envforge fill # 3. Check everything is set correctly envforge validate ## All Commands ### Scaffolding Command What it does envforge init Create a new .env by selecting providers interactively envforge add <provider> Add variables from a specific provider to your existing .env envforge preset Generate a .env from a popular stack preset envforge example Create a safe‑to‑commit .env.example file envforge fill Interactively enter values (secret keys are masked) envforge list Show all built‑in and custom providers ### Guardrails Command What it does envforge validate Check that all required variables are filled in envforge scan Detect secret keys accidentally exposed in frontend code envforge hook install Install a pre‑commit hook that runs validate + scan ### Customisation Command What it does envforge provider add Create a custom provider template envforge registry update Download the latest providers from the community registry ## Built‑in Providers Category Providers Database Supabase, Neon, MongoDB Atlas Auth Clerk, Auth0, Firebase AI OpenAI, Anthropic (Claude) Payments Stripe Email Resend, SendGrid Storage Cloudinary, AWS S3 / Cloudflare R2 Other Vercel Missing a provider? Add your own with envforge provider add or contribute one to the community. ## Framework‑Aware Scanning Use --framework for smarter detection: # Next.js specific rules (app/ vs pages/, "use client") envforge scan --framework next Th

Joseph Kariuki 2026-06-18 23:49 9 原文