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Show HN: Display any CSV file as a searchable, filterable, pretty HTML table Published: 2025-05-22 | Origin: Hacker News The content discusses a tool that converts CSV (comma-separated values) files into searchable, filterable HTML tables using JavaScript. Users can view a demo online and customize formatting for specific columns by using an array of custom functions. The text emphasizes the importance of HTML escaping to prevent security issues. Users can run the project locally or host it on GitHub Pages for free. It also describes how to embed the table using an iframe and suggests reporting any bugs encountered. The tool is released under the MIT License |
Fast Allocations in Ruby 3.5 Published: 2025-05-21 | Origin: /r/ruby In Ruby 3.5, object allocation is set to be significantly faster—up to six times quicker—compared to previous versions. The article by Aaron Patterson highlights this improvement through various benchmarks that compare the performance of positional and keyword parameters with and without the YJIT (Yet another Just-in-Time) compiler enabled. The benchmarks measure the script's execution time as the number and type of parameters passed to the `initialize` method vary, aiming to emphasize the impact of object allocation. A graph |
Why Property Testing Finds Bugs Unit Testing Does Not Published: 2025-05-21 | Origin: /r/programming The author expresses their thoughts on the ongoing discussion about Property-Based Testing (PBT) versus traditional unit testing. They emphasize that PBT involves defining general properties of a function rather than specifying exact input-output pairs, which allows for testing a broader range of scenarios through random input generation. The author mentions that while PBT can handle complex cases and edge conditions better than manual testing, it requires skills in formulating properties and creating input generators. Brian's argument, as interpreted by the author, stresses that P |
There Ain't No Such Thing as a Free Custom Memory Allocator Published: 2025-05-21 | Origin: /r/programming The content appears to be a raw snippet from a PDF file, containing binary data and encoded information but lacks a coherent narrative or clear information that can be summarized. It primarily consists of encoding metadata, stream data, and other binary representations that do not convey any specific, understandable message. Therefore, no meaningful summary can be produced from this information. |
Erlang/OTP 28.0 Release Published: 2025-05-21 | Origin: /r/programming Erlang/OTP 28 has been released, introducing several new features, improvements, and some incompatibilities. Key highlights include: - A source Software Bill of Materials (SBOM) added to the GitHub Releases page for feedback. - Support for priority message reception in processes, based on EEP 76. - Enhanced comprehensions with "zip generators" that allow parallel execution of multiple generators. Strict generators will now raise exceptions for non-matching patterns. - The ability to use any base |
Reading code is still the most effective method to debug multi-thread bug Published: 2025-05-21 | Origin: /r/programming Nan Xiao's blog discusses recent experiences as a system software and performance engineer, focusing on debugging two multi-threading bugs. The first bug involved deadlocks occurring sporadically on certain production machines but not in the test environment. The root cause was identified after thorough investigation, revealing a copy-paste error. The second bug caused program crashes after several hours due to an unexpected assert being triggered. This was resolved by meticulously reviewing related code for potential contention issues, with a solution also emerging after consistent code examination |
The Lobster Programming Language Published: 2025-05-21 | Origin: /r/programming Lobster is a programming language designed to blend the benefits of static typing and compile-time memory management with a lightweight and user-friendly syntax. Primarily aimed at game development and graphical applications, Lobster includes many built-in functions to facilitate rapid coding and iteration. It is open source under the Apache v2 license and hosted on GitHub, where users can find comprehensive documentation, including a reference for built-in functions. The language emphasizes quick and efficient code writing, making it particularly well-suited for game |
Link Time Optimizations: New Way to Do Compiler Optimizations Published: 2025-05-21 | Origin: /r/programming Johnny's Software Lab emphasizes the importance of compiler optimization for C/C++ developers. The author reflects on their early realization of compiler optimization options, specifically the GCC compiler's -O0 for debugging and -O3 for fast release code. They describe the typical process of compiling source files into object files and linking them into executables. However, the author highlights that relying solely on this process misses significant optimization opportunities in the linking phase. They explain how the compiler performs optimizations such as inlining, which |
Assured confidential execution (ACE) implements VM-based trusted execution environment (TEE) for embedded RISC-V systems with focus on a formally verified and auditable firmware Published: 2025-05-21 | Origin: /r/programming The content discusses the Assured Confidential Execution (ACE) project, which implements a VM-based trusted execution environment (TEE) for embedded RISC-V systems, focusing on formally verified firmware. ACE-RISCV is an open-source initiative aimed at providing a confidential computing framework with a formally proven security monitor, targeting RISC-V architecture while being adaptable to others. The project emphasizes formal verification of the security monitor and invites collaboration to advance provable confidential computing. It adheres to the RISC-V CoVE |
ITXPlus: A ITX Sized Macintosh Plus Logicboard Reproduction Published: 2025-05-21 | Origin: Hacker News Of course! Please provide the content you'd like me to summarize, and I'll be happy to help. |
Nvidia Pushes Further into Cloud with GPU Marketplace Published: 2025-05-21 | Origin: Hacker News Failed to fetch content - HTTP Status - 401 |
For algorithms, a little memory outweighs a lot of time Published: 2025-05-21 | Origin: Hacker News In May 2025, Quanta Magazine reported on theoretical computer scientist Ryan Williams’ groundbreaking discovery regarding the relationship between time and memory in computing. Williams initially set out to prove his mathematical proof wrong, which suggested that a small amount of memory could be as effective as a significant amount of time in computational tasks. After thorough investigation and scrutiny of his own work, he found no errors in his proof, leading him to consider the possibility that his findings were indeed valid. In February, he shared his proof |
Devstral Published: 2025-05-21 | Origin: Hacker News Introducing Devstral, an advanced open-source large language model (LLM) designed specifically for software engineering tasks. Developed through collaboration between Mistral AI and All Hands AI, Devstral significantly outperforms existing open-source models on the SWE-Bench Verified benchmark, achieving a score of 46.8%. This model is tailored for solving real-world coding challenges, such as contextualizing code within large codebases and identifying bugs, unlike typical LLMs which excel at simpler coding tasks. |
Learning by doing instead of "grinding LeetCode": A distributed system from scratch in Scala 3 (Part 3: Worker scaling and leader election with Raft) Published: 2025-05-21 | Origin: /r/programming The content discusses the author's ongoing project, Bridge Four, which is a distributed system built from scratch using Scala 3. The project serves as a hands-on learning experience, contrasting with the author's view that practicing coding challenges like LeetCode is less beneficial. The author emphasizes the importance of building the system without using external libraries or pre-built algorithms to enhance the learning process. The article mentions updates to Scala 3, noting significant advancements from version 3.3 to 3.6.4 over |
Mermaid: Generation of diagrams like flowcharts or sequence diagrams from text Published: 2025-05-21 | Origin: Hacker News Mermaid is a JavaScript-based tool that allows users to create and modify diagrams, such as flowcharts and sequence diagrams, using Markdown-inspired text. It aims to address documentation challenges by making it easier for developers to keep documentation up-to-date, thus enhancing productivity and organizational learning. The tool is accessible to non-programmers through the Mermaid Live Editor and integrates with various applications, including GitHub. Mermaid has received recognition, winning the JS Open Source Awards in 2019 for its innovative use of technology |
System Design: Building TikTok-Style Video Feed for 100 Million Users Published: 2025-05-21 | Origin: /r/programming The article discusses the widespread consumption of video content, with the average person spending over two hours daily on platforms like Instagram, YouTube, and TikTok. It explores the technology and strategies that enable these platforms to effectively capture and maintain user attention, including personalized video recommendations and seamless transitions between videos. The author aims to provide insights into the engineering behind video feed platforms by proposing a system design approach to create a video feed product that allows user interactions such as likes, shares, and comments. The piece serves |
The WinRAR Approach Published: 2025-05-21 | Origin: Hacker News The content discusses a new approach to distributing wallpapers on a website that has been free and ad-free for five years, despite increasing operational costs due to significant growth in visitor numbers. To maintain sustainability, the site now offers a purchase option for wallpaper collections, allowing users to instantly download an entire set with one click. However, all wallpapers remain available for free download without ads or exclusives. The approach is likened to WinRAR, which offers a trial experience while encouraging users to support the site if they |
Show HN: Lipu sona – Toki Pona Learn the language of simplicity Published: 2025-05-21 | Origin: Hacker News Of course! Please provide the content you'd like me to summarize. |
Convolutions, Polynomials and Flipped Kernels Published: 2025-05-21 | Origin: Hacker News The post discusses the process of multiplying polynomials and the relationship to convolution sums. It begins with the traditional method of cross-multiplying polynomials and collecting terms, then introduces a more systematic approach using a table to visualize how coefficients correspond to specific terms in the output. The table highlights the necessary diagonals that combine to form each term's coefficient. The text then shifts to an abstract representation of polynomials as sums of coefficients multiplied by powers of x. When two polynomials, P and R |
“ZLinq”, a Zero-Allocation LINQ Library for .NET Published: 2025-05-20 | Origin: Hacker News ZLinq v1 was released last month, achieving zero allocations through the use of structs and generics. It includes features such as LINQ to Span, LINQ to SIMD, and support for various platforms like .NET Standard 2.0, Unity, and Godot. With over 2000 GitHub stars, ZLinq aims to provide practical LINQ functionality, overcoming limitations seen in previous struct-based implementations, such as assembly size bloat and performance issues. The library offers comprehensive |