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Garry Tan, president of Y Combinator, apologizes for initially defending PearAI's inappropriate use of open source code in its AI code editor and acknowledges Continue's positive contributions to the open source community.
Amazon and Salesforce have mandated full-time return to office work, but Google has reassured its employees that its current hybrid work policy, which allows staff to work remotely at least two days a week, will remain in place.
Terminal colors are tricky due to inconsistent color implementations, contrast issues, program-specific color conflicts, and the impact of different terminal types and color support levels.
React's documentation inadequately explains the "unspoken rules" of useEffect dependencies, especially regarding the stability of return values from built-in and third-party hooks.
WordPress founder Matt Mullenweg has published a response to the lawsuit brought on by WP Engine.
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A weird bug in an augmented reality system caused disorienting visual glitches and interestingly, only happened every Wednesday. After an extensive, months-long investigation involving robotic arms, lasers, and a high-FPS camera, the root cause turned out to be due to a time-translation hack using day-of-week words in German and English neglecting to account for the German word for Wednesday, "Mittwoch." This oversight led to timestamp discrepancies, resulting in the weekly glitches and an unpredictable error correction mechanism.
This is the story of a massive, poorly designed legacy codebase with a chaotic database structure, including a table with a single column and row used for generating IDs and a manually-updated calendar table. The codebase itself was a mishmash of technologies, with a mix of VB and C#, various JavaScript frameworks, and even a shipping manager built in a weekend by a lone developer. Despite its flaws, developers found the chaotic nature of the system freeing, as they were forced to create isolated, independent solutions within the larger mess.
JavaScript is a mutable programming language, while Elixir leans towards immutability. While both languages appear to have similar variable assignment behavior, Elixir achieves this through "rebinding," creating new variables with new values instead of mutating existing ones. This immutable approach, along with Elixir's process-based concurrency, eliminates the possibility of race conditions and unexpected state changes that are common in mutable languages.
Hyrum's Law states that any observable behavior in a system, even if undocumented, will be relied upon by some users. This has massive consequences, especially during large-scale migrations, as users might depend on seemingly insignificant details like hash iteration order. One example is the iteration order of hash tables in Java, which is technically unspecified but often remains stable for years. This can lead to users inadvertently writing code that depends on the order, causing problems during Java version upgrades.
Linus Torvalds (the creator of Git and Linux) says that data structures are more important than code in software development since good data structures lead to better code design and maintainability. This developer supports this view with personal experience, describing how restructuring data in a project allowed a team to move faster in the long run. The prioritization is also how Git grew to be the dominant version control system.
Traditional performance reviews can be ineffective for engineering roles. Instead, a better way to manage performance is by setting clear expectations while also being dynamic, since the nature of development is always changing.
TinyJS is a JavaScript library for dynamically creating HTML elements with deep property assignment. It makes DOM manipulation easier by allowing you to generate standard HTML tags programmatically, apply properties, append content, and select DOM elements.
Ultimate Express is a drop-in replacement for Express.js that offers faster performance using µWebSockets while maintaining full Express compatibility.
Cosmopolitan Libc's new mutex implementation is much faster than other popular libraries. One of the secrets behind the implementation is nsync, a C library written by a distinguished engineer at Google.
Using LLMs to generate mock data has proven to be much harder than expected. A team explored using LLMs to generate Rust code for dynamic INSERT queries for their database platform, but found the generated code bad. Eventually, the team developed a hybrid approach, using LLMs to predict faker (Python package) methods for data generation while using topological sorting for accurate insertion order.
Expensify's offline UX patterns prioritize "optimistic responses," assuming API requests will succeed when the user is back online and allowing them to proceed as if the action is complete. These responses can be incorporated with or without feedback, where the user is either aware or not aware that a request is pending and/or sent.
Web scraping can be effectively done directly within a web browser, despite the widespread reliance on Python and other external tools. While limitations like CORS restrictions exist, they can be overcome with the use of proxy servers. This article shows a simple web scraper built entirely within a web browser using just a few lines of JavaScript code.
AbortController is a JavaScript API that allows you to abort various operations like network requests, event listeners, and streams in a clean way.
WP Engine has sued Automattic and WordPress founder Matt Mullenweg for libel, slander, attempted extortion, unfair competition, and more.
TCP requires three handshakes to establish a connection because it makes sure both parties confirm their ability to send and receive data.
A comprehensive guide to Angular Routing that covers essential concepts like defining routes, links, and outlets and advanced features like data resolvers and route protection.
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Feature management tools aren't made for B2B: A/B experiments are useless, segmentation is painful, and the UIs are complex.
Focus on unit tests with the right scope, avoid unnecessary component tests, and leverage stable APIs to create scalable integration tests that require minimal maintenance. Having good tests helps maximize engineering velocity, and automated generated tests may help codebases be better tested in the future.
This developer created a local-first web app for trip planning. It was designed to address shortcomings in existing trip planning tools by offering quick data entry, easy comparison features, and support for both structured and unstructured data. The app was built using a local-first architecture using CRDTs and the Yjs library for real-time collaboration and offline functionality.
Destructuring in JavaScript allows you to extract values from arrays and objects into separate variables. The ellipsis (...) in destructuring represents a "rest property," which captures remaining elements or properties into a new array or object. It also acts as the "spread operator," which expands iterables like arrays, objects, and strings into individual elements.
OpenAI DevDay 2024 included announcements about a real-time API enabling voice interaction with AI models, improved model customization with fine-tuning for vision models, and cost reductions through prompt caching and model distillation. The company highlighted the importance of structured outputs for building reliable applications by unveiling its new Structured Outputs API, which guarantees accurate JSON schema adherence.
The "tech imperative” is the idea that all problems can be solved with technology. While the underlying assumption is that technology itself is inherently good, the promotion of technology stems from a pro-attitude rather than a reasoned argument.
Web Components introduce unnecessary overhead and complexity due to their reliance on the DOM. They are a compromise that sacrifices flexibility and efficiency for the sake of standardization.
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Outages, degraded user experience, and lost revenue are just some of the bad outcomes of a mismanaged release process. Think this can never happen to you? Take LaunchDarkly's Software Release Risk Assessment [11] to find out what can go wrong in your upcoming feature releases - and what to do about it. Answer 8 questions to get your risk score
GitHub Issues has been revamped with several new features, including sub-issues, issue types, and advanced search. The interface has also been updated, and the project item limit has been increased to 50,000 items. These features are now available in public preview.
SlateDB is an embedded database that uses object storage for data persistence. Unlike traditional databases, it operates without physical disks and uses the object store's replication capabilities for high availability.
Sourcebot is a code search tool that indexes and searches multiple repositories hosted on GitHub or GitLab. It has features like one-command deployment, multi-repo search, full file visualization, and more.
The 2024 Ruby on Rails Community Survey gathered responses from over 2,700 developers across 106 countries, showing that Rails is still relevant in 2024. Stimulus.js has overtaken React as the most popular JavaScript library used with Rails, while PostgreSQL remains the preferred relational database.
ProductHunt has about 60% of user signups automated. This was discovered through a simple test, where an LLM prompt was injected into a product description, leading to a flood of automated comments.
Matt Mullenweg, CEO of Automattic, has escalated his conflict with WP Engine, demanding a more than 8% licensing deal for the use of WordPress and WooCommerce trademarks. This demand suggests a potential corporate takeover by Automattic, which is accusing WP Engine of perceived minimal contributions to the WordPress project. WP Engine has made counterclaims and attempts to mitigate the damage, but the conflict remains unresolved, with the possibility of a legal battle in the future.
Anthropic has hired Durk Kingma, a co-founder of OpenAI and the author of one of the most influential papers in the scientific community, “Adam”.
Apple has removed Juno, a Vision Pro app that modified the YouTube website to make it more "visionOS" like, from the App Store due to YouTube's requests.
Despite being declared dead in 1992, COBOL continues to live on even today, over 30 years later.
The CSS property `content-visibility` improves web rendering performance by skipping unnecessary work for off-screen elements.
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Ngrok built its data platform with an engineering team of just one person, using open-source tools and self-hosting on Kubernetes. They had challenges like complex schemas and large data volumes, which were addressed through code generation, schema normalization, and scaling Apache Flink with Protobuf messages.
React Query tackles the challenge of data synchronization by keeping the data displayed on the screen up-to-date with the server state. It uses a "Stale While Revalidate" strategy, where data is considered stale by default and refetched in the background when triggers like changes in query keys, new component mounts, window focus, or device going online occur. This allows for a smooth user experience with instant data delivery while still making sure the cache stays synchronized with the server.
A search engine added phrase matching by transitioning from approximate word position storage to storing precise positions using compressed lists. This change required implementing a new way to store information about word occurrences within different document fields. The ranking algorithm was upgraded to take advantage of the new phrase matching capabilities, incorporating factors like phrase presence, keyword distance, and early occurrence.
If your main goal is to make money, you may have to compromise on your passion, as most people pay you for what they want, not what you want. However, if you are passionate about something that is also in high demand, like a niche market, you can potentially earn a living from it. Building a startup can be a viable option here, but mostly if it arises from your own passions and interests.
This is a list of various pieces of advice on writing good software. For example, good devs fight against complexity, say "no" to unnecessary features, and embrace simple solutions. They are also patient and refactor thoughtfully.