Published: 2025-04-27 | Origin: /r/programming

The content discusses the advantages of hash tables as a data structure, particularly for rapid lookups, quick inserts, and fast deletions. However, it also emphasizes that there are trade-offs involved, and developers should choose hash tables carefully based on their specific needs. To illustrate the point, the example of Vin Diesel designing a seat management system for a coworking space is presented. Vin creates a Room class to manage seat occupancy and considers various data structures to store seat objects. Given the limited size of

Published: 2025-04-27 | Origin: Hacker News

GraalVM version 25 introduced support for compiling Java programs to WebAssembly (WASM), allowing the execution of Clojure programs in this environment. Although the WASM backend is still in early development and lacks support for threading and networking, it can run single-threaded computational programs. A simple "Hello, World!" Clojure program outputs to the browser console with a WASM binary size of 5.6MB, which can be reduced to approximately 2.5MB when compressed

Published: 2025-04-27 | Origin: /r/programming

The newsletter focuses on software engineering, offering weekly articles that cover topics from coding basics to advanced system design. It emphasizes delivering well-researched, valuable content without unnecessary fillers.

Published: 2025-04-27 | Origin: Hacker News

The content discusses the capabilities of CSS-based design, highlighting the importance of clearing outdated practices and embracing modern web standards achieved through the efforts of organizations like W3C and WaSP. It promotes the CSS Zen Garden as a platform for showcasing the power of CSS by allowing users to change stylesheets on a static HTML page, emphasizing that the underlying HTML remains the same while different CSS files create diverse visual presentations. The aim is to inspire and excite participants about CSS's potential for aesthetic web design. The piece

Published: 2025-04-27 | Origin: Hacker News

learn-c.org offers a free interactive tutorial for learning the C programming language, suitable for both beginners and experienced programmers. Users can easily start by clicking on chapters without the need for downloads. The site is still being developed, and contributions for tutorials are welcomed.

Published: 2025-04-27 | Origin: Hacker News

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Published: 2025-04-27 | Origin: Hacker News

The content appears to be a portion of a PDF file, specifically in a binary format. The file is encoded with various stream objects that include incomprehensible characters and graphical data, which are typical in PDF files. The PDF metadata indicates compatibility with version 1.4, and it is set for printer quality configuration. Overall, there is no coherent text or visible content that can be summarized meaningfully, as it consists primarily of binary data with some symbolic representations.

Published: 2025-04-27 | Origin: Hacker News

Of course! Please provide the content you'd like me to summarize, and I'll be happy to help.

Published: 2025-04-26 | Origin: /r/programming

Spotify allows Unicode usernames, which can lead to unique experiences but also significant issues. A notable incident occurred on Good Friday when a user claimed he and a friend could hijack accounts. The forum manager challenged him, resulting in his account being compromised. Promptly, the team investigated the issue, discovering that the problem stemmed from how canonical usernames (the standardized form of usernames) were derived from user-selected names. They had to temporarily disable account creation to address the vulnerability. The situation highlighted the importance of

Published: 2025-04-26 | Origin: Hacker News

The content discusses how to utilize Newlib to create a compact C standard library suitable for bare metal systems, specifically for a RISC-V platform. It highlights the differences in using functions like printf in standard operating systems versus bare metal environments. In standard systems, printf involves multiple abstractions and system calls through a kernel. In contrast, bare metal systems lack such support, necessitating a more direct approach to implement functionality. The article outlines steps including setting up a cross-compilation toolchain, implementing memory and

Published: 2025-04-26 | Origin: Hacker News

The content discusses an interesting historical anecdote about the Commodore PET computer and an easter egg inserted by Bill Gates, where typing “WAIT6502,1” reveals “MICROSOFT!” on the screen. This was allegedly a response to an argument with Commodore founder Jack Tramiel, intended to prevent Commodore from claiming the code wasn’t from Microsoft. The article also parallels this with a similar incident involving Apple embedding a hidden icon in Macintosh firmware to prove software ownership against clones. The

Published: 2025-04-26 | Origin: /r/ruby

In a recent post about ractors, the author discusses their initial skepticism about using ractors for entire applications due to implementation bugs and performance issues related to Ruby's global lock. However, progress is being made to address these concerns. A team is actively working to fix known bugs and reduce contention points in the Ruby VM. A significant improvement involved replacing the fstring_table, a hashed string deduplication system prone to crashes when accessed by multiple ractors, with a lock-free Hash-Set. This

Published: 2025-04-26 | Origin: /r/programming

The provided content appears to be a snippet of binary data from a PDF file, identifiable by the "%PDF-1.5" header indicating it's a version 1.5 PDF. The information within is compressed and not human-readable in its current form. To summarize, this content represents coded information from a PDF document, likely including text, images, or formatting instructions, but cannot be interpreted or summarized further without proper decoding.

Published: 2025-04-26 | Origin: /r/programming

The article discusses the differences between planning software that will be stable and not change significantly (like file formats or public APIs) and software that is likely to evolve after its release—most software falls into the latter category. The author, reflecting on their experiences as a student, expresses frustration with conventional advice that advocates for extensive planning of software features and functions before starting development. Using the example of developing a text editor, the author highlights key considerations, such as supporting large file sizes and high-resolution displays.

Published: 2025-04-26 | Origin: /r/programming

Idempotency is a crucial property in distributed systems, where performing an operation multiple times yields the same result as executing it once. This is particularly important in scenarios with unreliable network communications, where retries may occur due to timeouts or other interruptions. Without idempotency, retrying a request, such as placing an order, can lead to issues like duplicate transactions. For instance, in an e-commerce context, if a customer experiences a network glitch and resubmits an order, a non-idempot

Published: 2025-04-26 | Origin: Hacker News

On April 26, 2025, a user tests OpenAI’s new o3 model by asking it to guess the location of a photo taken in El Granada, California. The user notes the excitement of using this feature, likening it to a mix of sci-fi elements. To initiate the process, they disable the memory features to prevent the AI from using previous chat context. When provided with the photo, the AI initially claims it cannot see the image and relies on metadata, but soon begins

Published: 2025-04-26 | Origin: Hacker News

The content describes a 32-bit hobby operating system designed for the i386 architecture, which features graphics, multitasking, and networking capabilities. It highlights the project’s focus on networking and includes a basic C compiler. The operating system has three default users—system, admin (password: 'admin'), and guest (no password)—with no functional difference between admin and guest accounts. The operating system is built using C and Assembly language for the kernel and utilities, C++ for userspace applications, and

Published: 2025-04-26 | Origin: /r/programming

Python 3.14 is set for release on October 7, 2025, featuring significant performance enhancements including an experimental new interpreter, optimizations of built-in modules, and improved file I/O operations. This upgrade will allow Python programs to run faster without needing code modifications. While most developers may not need to understand all the low-level details, there are three syntax changes in Python 3.14 that will impact programming practices. The article aims to explain these changes for developers to stay current in

Published: 2025-04-26 | Origin: Hacker News

The prostate gland is associated with numerous health issues, particularly prostate cancer, which claims the life of about one in forty men in the U.S., and benign prostatic hyperplasia (BPH), which affects most men over 60. BPH can obstruct the urinary tract, leading to difficulties in urination, often resulting in surgical intervention. While breast cancer in women has a similar mortality rate, it can be attributed to the larger size and more active metabolism of breast tissue compared to the prostate. There's

Published: 2025-04-26 | Origin: /r/programming

The content discusses the concept of blindly following traditional practices in software engineering, likening this behavior to a joke about cutting the tail off a turkey due to a previously small pan. It highlights common examples of these outdated routines, such as tedious processes, outdated architectures, and adherence to specific daily stand-up questions without rationale. The text cautions that such legacy habits can hinder team efficiency and confuse new members. It encourages teams to question existing practices, seek clarification, and assess whether processes are still effective. For