Published: 2025-01-09 | Origin: /r/programming

The content discusses how SQL handles NULL values, emphasizing that they are treated distinctly from one another. This is particularly relevant for columns with UNIQUE constraints, as multiple NULL values can exist in such columns because each NULL is considered a unique "unknown value." The author shares personal experiences with databases like SQLite, Postgres, and MySQL to illustrate this behavior. Key points include: 1. When using the logical equals operator ("="), comparing two NULL values results in NULL, as SQL treats them as unknown

Published: 2025-01-09 | Origin: Hacker News

The research presented at Black Hat Europe 2024 reveals a new attack surface in Windows through the exploitation of an internal charset conversion feature called Best-Fit. This vulnerability allows for practical attacks, including Path Traversal, Argument Injection, and Remote Code Execution (RCE), affecting several popular applications. The study highlights challenges in addressing the root causes, which involve compiler behavior and common developer mistakes within the open-source ecosystem. The article also poses a challenge to penetration testers by asking whether they can exploit specific

Published: 2025-01-09 | Origin: /r/programming

The content discusses a conversation with Salvatore Sanfilippo, known as antirez, who is recognized for creating Redis and writing sci-fi novels. He shares insights on the importance of blogging for expressing passions and communicating about software projects. Antirez emphasizes that effective communication is crucial for a project's success, even though some developers may find success without it. He explains that his writing process is driven by his interests, where ideas coalesce into coherent thoughts, leading him to create blog posts. The piece aims

Published: 2025-01-09 | Origin: Hacker News

The provided content is a segment of a PDF file's structure written in PDF syntax. It specifies the document's catalog and form fields. The key components include: 1. **PDF Version**: The document is identified as PDF version 1.6. 2. **AcroForm**: The document contains an AcroForm with numerous fields referenced by their IDs (e.g., 50 0 R, 51 0 R, etc.). 3. **Page Structure**: There is

Published: 2025-01-09 | Origin: /r/ruby

The content explains how to implement autosaving for inline input fields using Hotwire, specifically with Turbo and Stimulus. Autosaving automatically saves user input without requiring a specific action, such as when the user changes focus or after a period of inactivity. To achieve this, a Stimulus controller is created to handle the autosave functionality, removing the need for a traditional 'Save' button. The controller targets a form, and instead of calling the usual submit method, it uses requestSubmit to ensure a Turbo

Published: 2025-01-09 | Origin: /r/programming

The author has been working on rendering the Sponza model using the WebGPU standard as a personal project to enhance their skills with the API and explore various rendering techniques. A demo of the project can be tried online, and the source code is available on GitHub. The article aims to provide a high-level overview of the rendering pipeline and various effects used in the demo without going into excessive detail about specific techniques like Screen Space Reflections. It also compares WebGPU to Apple's Metal rendering API. The

Published: 2025-01-09 | Origin: Hacker News

The content describes a Python library and interactive web demo designed to visualize Factorio blueprints. The creator is passionate about the game Factorio and aims to showcase the beauty of factories and blueprints. Users can import blueprints as text and visualize them with customizable settings, including viewing various building components and connections in scalable vector graphics (SVG). There is a note that blueprints from versions prior to 2.0 may require re-exporting after import to work correctly. Additionally, the creator has shared a

Published: 2025-01-09 | Origin: Hacker News

Phi 4 is a state-of-the-art open model with 14 billion parameters, updated 3 days ago. It is built using a combination of synthetic datasets, filtered public domain content, and acquired academic materials. The model has undergone thorough enhancement and alignment, utilizing both supervised fine-tuning and preference optimization to improve instruction adherence and safety. It offers a context length of 16,000 tokens and is intended to facilitate research and serve as a foundation for generative AI applications, primarily in English.

Published: 2025-01-09 | Origin: Hacker News

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Published: 2025-01-09 | Origin: /r/programming

Agile methodologies prioritize speed and flexibility in software development but often neglect security, increasing risks to software integrity. To counter this, it is vital to integrate secure coding practices throughout the software development lifecycle (SDLC), ensuring security is a core element rather than an afterthought. Research from Secure Code Warrior shows that 67% of developers acknowledge shipping code with vulnerabilities. By embedding security into each development sprint, organizations can proactively tackle risks and potentially reduce vulnerabilities by up to 53%. This proactive approach aligns with

Published: 2025-01-09 | Origin: /r/programming

The content discusses the analysis of Git repositories using a tool called "git-of-theseus." Users are encouraged to provide feedback, indicating that their input is valued. The tool can be installed using `pip install git-of-theseus`, and is used to analyze how a repository evolves over time by generating various visualizations. To analyze a repository, users must run the command `git-of-theseus-analyze <path to repo>`, which may take a while, and can customize parameters with

Published: 2025-01-09 | Origin: /r/ruby

The content emphasizes the importance of user feedback and mentions that all input is taken seriously. It also provides a reference to documentation for available qualifiers. Additionally, it describes a tool designed for analyzing the history of a Rails application repository using Git, with a command example for usage.

Published: 2025-01-09 | Origin: Hacker News

In 1980, biologist Paul Ehrlich and economist Julian Simon entered a bet regarding the future prices of five materials—chromium, copper, nickel, tin, and tungsten—over the next decade. Ehrlich anticipated that population growth would deplete resources, causing prices to rise. In contrast, Simon believed that human innovation would counteract shortages, leading to declining prices. They agreed on a wager of $1,000, with Ehrlich betting that prices would increase and Simon betting they would

Published: 2025-01-08 | Origin: Hacker News

The author shares an update on their experience living on a 28-hour day schedule for over a year. They describe this shift as the second best decision for their health, following regular exercise. Initially, it took about two months to adjust, during which they faced challenges such as excessive sleepiness and difficulty communicating with their partner. However, implementing short strategic naps helped them manage sleepiness while maintaining the schedule. They note the importance of remaining consistent with their schedule throughout the week, particularly until weekends when they

Published: 2025-01-08 | Origin: Hacker News

The author, a computer science student at the University of Washington (UW), is facing potential expulsion over a project called HuskySwap, initially created to help students trade spots in critical classes. They developed this app as part of a course and were excited about its potential after receiving positive feedback during demos. As the author sought to improve the app and prepare for its launch, they discovered documentation suggesting integration with UW’s registration system. They requested read-only access to automate handling course data but were met with

Published: 2025-01-08 | Origin: Hacker News

Vector graphics are crucial in design due to their resolution independence and flexibility. Recent advancements in vision-language and diffusion models have led to increased interest in generating vector graphics from text. However, many current methods produce over-parameterized outputs and neglect the layered structure that is essential to vector graphics, limiting their usability. To address these issues, the authors propose NeuralSVG, a neural approach that generates vector graphics in layered SVG format from text prompts. Inspired by Neural Radiance Fields, NeuralSVG encodes scenes into

Published: 2025-01-08 | Origin: Hacker News

Stagehand is an AI web browsing framework designed for simplicity and extensibility, making it easy to build browser automations. Compatible with Playwright, it offers three AI APIs (act, extract, observe) to enhance web automation using natural language. Stagehand improves accessibility for non-technical users and provides robust tools for writing reliable automation code, along with debugging features like session replay. Currently in early release, Stagehand encourages community feedback and offers full documentation on its website. To get started, users can

Published: 2025-01-08 | Origin: /r/ruby

Matthew Valentine-House discusses the advancements in Ruby's garbage collection (GC) at RubyKaigi 2023, focusing on improvements made by Shopify for Ruby 3.4. He highlights the historical context of Ruby's GC and the community's ongoing interest in optimizing it since 2008. Significant progress includes enabling the runtime replacement of the default Mark & Sweep collector with a new implementation based on the Memory Management Toolkit (MMTk), without needing to re-compile Ruby. The changes involve creating a

Published: 2025-01-08 | Origin: Hacker News

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Published: 2025-01-08 | Origin: Hacker News

Fidget is a library designed for handling large-scale mathematical expressions, primarily intended as a backend for implicit surfaces. It can represent, compile, and evaluate complex arithmetic clauses for various applications. Implicit surfaces are mathematical functions that provide a distance value for points in 3D space, allowing the determination of whether these points lie inside or outside a model (e.g., a sphere). The library specializes in closed-form implicit surfaces that use basic arithmetic operations, contrasting with flexible representations like GLSL, which can