Published: 2024-09-09 | Origin: /r/programming

The delete operator in JavaScript is an older feature that aims to remove property references from objects rather than deleting values like numbers directly. Using `delete 0` does not lead to actual deletion in the execution system. Typically, when a property is successfully deleted, the operator returns true; if it fails, it returns false. Notably, the delete operator affects only an object's own properties and will skip any properties found in the prototype chain. If a property is non-existent, the delete operation has no

Published: 2024-09-09 | Origin: Hacker News

Synthetic diamonds have become purer, more beautiful, and significantly cheaper than mined diamonds due to advancements in manufacturing technology developed over decades. A diamond, composed of a strong carbon atom lattice, is the hardest natural material and has unique properties such as high thermal conductivity and electrical resistivity. While natural diamonds take billions of years to form and often contain impurities, lab-grown diamonds can be produced more quickly and cost-effectively, allowing for new applications. Initially, synthetic diamonds were small and impure, suitable only

Published: 2024-09-09 | Origin: Hacker News

The author previously misunderstood the terms concurrency and parallelism, often used interchangeably. After reading Chapter 9 of "Clojure for the Brave and True," they realized that these concepts are distinct, prompting a desire to learn more, particularly in the context of JavaScript. The author explains three methods of task execution: sequential, concurrent, and parallel. Sequential execution involves completing tasks one after another without overlap, which can lead to inefficiencies if one task is blocked by waiting for another (e.g

Published: 2024-09-09 | Origin: Hacker News

In recent years, there has been a noticeable resurgence in the development of command line interface (CLI) tools, particularly after a period of limited activity between 1995 and 2015. This trend involves not just the creation of new tools but also the rethinking and redesign of traditional command line staples. The terminal and CLI have been important features of computing since the late 1950s, with many foundational Linux commands originating from the first Unix version in 1971. While these tools, such

Published: 2024-09-09 | Origin: /r/ruby

The content provides updates and resources related to Ruby and Ruby on Rails, highlighting recent launches, events, code insights, and community contributions. Key points include: - **Launches**: Ruby on Rails has introduced a new video series titled "Rails in Focus," and Alexandre Ruban has (pre)launched The New Authentication Generator. - **Events**: Friendly.Rb shared updates on speakers and activities for an upcoming event, and Ahmed Nadar announced a guide to Toronto by AppSignal. -

Published: 2024-09-09 | Origin: Hacker News

The author is observing the xenocog community and projects emerging from cyborgism concepts. They are particularly fascinated by how individuals like Janus, ampdot, and Theia Vogel interact with language models (LLMs) in innovative ways, treating these models with intellectual respect. Instead of focusing on how to build a Discord bot, the author is intrigued by the mechanics of interaction within group chats and how LLMs can participate naturally. They discuss the typical limitations of chat models and express interest in identifying

Published: 2024-09-09 | Origin: /r/programming

Elastic has identified two critical vulnerabilities in Kibana, CVE-2024-37288 and CVE-2024-37285, both stemming from YAML deserialization issues that could allow attackers to execute arbitrary code. CVE-2024-37288 specifically affects Kibana version 8.15.0, with a focus on the Amazon Bedrock Connector, posing a significant threat to users of that integration. To address this vulnerability, users are urged to upgrade to Kibana version 8

Published: 2024-09-09 | Origin: /r/programming

The feedback received from users is greatly valued. Users can find all available qualifiers in the documentation. A modified VLC plugin with Streamlink and hardware acceleration support for OBS Studio is available. Before installation, it's advised to back up the files vlc-video.dll and vlc-video.pdb, typically located in C:\Program Files\obs-studio\obs-plugins\64bit. Streamlink facilitates receiving video streams via channel links, such as Twitch, and can run a local server. Users can refine

Published: 2024-09-09 | Origin: Hacker News

The content describes the addition of an alert feature that will notify users whenever a selected record is cited. Users can manage their alert preferences by logging into their account. Additionally, it discusses network performance evaluation, measurement, and protocols, specifically highlighting the QUIC protocol, which enhances web application performance through multiplexing and encryption over UDP. It contrasts QUIC with TCP, emphasizing their use of Explicit Congestion Notification (ECN) to manage congestion, and notes the long journey of TCP's adoption of ECN

Published: 2024-09-09 | Origin: /r/programming

The content discusses a snake game that was developed entirely in the BIOS, based on a previous version. The game code is compact at 114 bytes, which includes the necessary hardware initialization. Players control the snake using the numpad arrows, and there's an option to compile the game to use a standard keypad instead. Additionally, a QR code is provided for easy access to the game. Feedback from users is taken seriously, and further documentation on qualifiers is available.

Published: 2024-09-09 | Origin: Hacker News

The article discusses AT Protocol, the technology developed by Bluesky for open social networking, through the lens of distributed backend engineering. It begins by contrasting traditional web architecture, which relies on a single SQL database and can become a performance bottleneck, particularly for large-scale social networks. As performance issues arise, solutions such as caching and sharding are introduced, but these still struggle with strong consistency requirements. To improve scalability, the article advocates for moving to a NoSQL system that employs eventual consistency. However,

Published: 2024-09-08 | Origin: Hacker News

The author explores the transition process of a Linux system from an active state to hibernation, focusing on how it restores its previous state upon waking. This investigation, facilitated by source code analysis from Linux version 6.9.9, is structured in multiple parts, with the first part detailing the steps from hibernation initiation to disk synchronization. The article references debugging system files that help control and understand the hibernation process, specifically the state and disk files, which allow direct manipulation of sleep

Published: 2024-09-08 | Origin: Hacker News

After 7 months of development, mynewsdesk.com has created a Kubernetes-based platform to replace Heroku for their SaaS product, achieving a 90% cost reduction and a 30% performance improvement. The new platform also enhanced developer experience with quicker deploy times and better tooling. They have now open-sourced the entire stack, enabling others to implement similar improvements in just a few days, promoting the initiative as "Reclaim the Stack."

Published: 2024-09-08 | Origin: Hacker News

The blog discusses a serious security vulnerability chain that begins with a publicly accessible .git directory, which contains the entire version history of a project, including sensitive configuration files. The author discovered that many websites still expose their .git directories, posing a risk for unauthorized access. Through accessing the .git/config file, the author obtained credentials that allowed them to clone the entire repository. Further exploration revealed the use of Bitbucket Pipelines for automated deployment. Within the pipeline configuration, they noticed that an SSH login

Published: 2024-09-08 | Origin: Hacker News

The provided content is a segment of a PDF file (version 1.7), which includes various objects encoded in a binary format typically used for document representation. The excerpt contains object definitions, including matrices, filters, lengths, and resource declarations such as font and state specifications. The data appears to include compressed streams, possibly representing images or graphical elements, which are not human-readable in the original format. The content is structured with several objects (4, 5, 6, and 12),

Published: 2024-09-08 | Origin: /r/programming

The article by Nadar Alpenidze discusses the intricate journey of a network request from a client application to a server, emphasizing the importance of understanding the underlying network stack processes often overlooked by engineers. Drawing from experience at AWS, the author highlights key concepts such as network sockets, the TCP three-way handshake, and the system calls that transfer requests from the kernel to application memory. The article aims to provide a comprehensive exploration of how web server frameworks like Spring Boot and Express handle incoming requests, ultimately enriching the

Published: 2024-09-08 | Origin: Hacker News

Fennel is a programming language that combines the ease, speed, and compatibility of Lua with the flexibility of Lisp syntax and macros. It can run anywhere Lua code runs, and users can try it without installation. Fennel allows users to see how code compiles from Fennel to Lua and vice-versa. The community engages through a mailing list, chats on Libera.Chat and Matrix, and meets at community events, adhering to a code of conduct. Bug reports can be made on

Published: 2024-09-08 | Origin: Hacker News

The post titled "Open::Journey" is the third installment of a personal open-source journey, focusing on building web projects with reduced cognitive load. The author advocates for a return to simpler web design, utilizing HTML for layout and CSS for styling. They find HTMX—an approach that eliminates the need for JavaScript in creating dynamic content—ideal for web development, particularly when paired with Raku and Cro for backend tasks like routing and serving RESTful APIs. While HTMX effectively handles dynamic content for

Published: 2024-09-08 | Origin: /r/programming

Core is an experimental tool designed to simplify video game development, particularly for creating Action RPGs. It features a component-based system using Clojure, where components are defined as vectors and entities as maps. The game state is managed within a single atom, while side effects are treated as components, akin to a transactional model. All content is organized in a single properties file and validated using malli-schemas, which can be edited through a graphical user interface. Although the application is set up for easy

Published: 2024-09-08 | Origin: /r/programming

The author passionately argues in favor of hiring junior engineers during a conversation with local tech leaders, countering the prevailing trend in Big Tech, which prefers to recruit experienced developers capable of immediately contributing to high-stakes projects, particularly in AI. The common belief that AI will replace junior developers overlooks the essential role juniors play in fostering a culture of teaching and learning, which is crucial for innovation. The article references Nonaka and Takeuchi's concept from **The Knowledge-Creating Company**, highlighting that successful