С помощью Apache Kafka мы в Авито гарантируем соблюдение контрактов публикуемых событий. Рассказываем, как мы переработали архитектуру и сделали работу с Kafka удобнее и надёжнее.Мы можем пережить даже полный отказ дата-центра. Почему — тоже расскажем в этой статье. Read more Read more ›
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With each release, PHP is getting faster, and when JIT (Just-In-Time) compilation is enabled, it reaches almost the same C marks.Many people at one time probably had a desire to easily write console and window applications. The guys of Runet sometimes wrote irreplaceable applications for solving small tasks and shared them on forums, although some of them contained small bugs. However, times are changing, and people have begun to realize... Read more ›
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The life of Langton's Ant seems sad and lonely, but, as we'll discover, he is not ready to put up with such an outrageous situation and is trying his best to escape. American scientist Christopher Langton invented his ant back in 1984. Since then, no one has been able to explain the strange behavior of this mysterious model... Read more Read more ›
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In Swift, when working with objects, it’s important to manage memory correctly. One way to do this is by using weak references to avoid retaining objects too long and causing memory leaks. In this article, we will discuss how to create an array of weak references in Swift using a generic wrapper. Read more Read more ›
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In this post I'll share my experience in adjustment of WiFi physical channel. The channel was implemented on a software defined radio (SDR) platform. WiFi looks like a very complicated thing standardized over hundreds of pages. Could a non-expert with a PC and a couple of 100$ devices (HackRFs) somehow improve it? Here I try to develop a WiFi optimization approach basically agnostic of protocol implementation details. There's some math... Read more ›
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Cruel time. Nothing I can do.I needed positive emotions. Distract myself, do some useless work.Coding a game might help. Read more Read more ›
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Reasons to write article: at the moment investigation is in a progress. Some of collected&tested info will be usefull for other. May be someone will add some tips. thank you.There is a task to develop a solution that allows: - keep users/groups in the some one directory - based on this information: 1. Access control to web applications via #oidc /#saml 2. Access control to vanilla #kubernetes. 3. SSH-access control... Read more ›
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On the Internet and in non-fiction literature you can often find various mathematical tricks. The Collatz conjecture leaves all such tricks behind. At first glance, it may seem like some kind of a trick with a catch. However, there is no catch. You think of a number and repeat one of two arithmetic operations for it several times. Surprisingly, the result of these actions will always be the same. Or,... Read more ›
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Настал третий за 12 лет случай, когда в профессии программист-микроконтроллеров понадобилось вспомнить школьную математику. В этом тексте я представил перевод AppNote(а) "The mathematics of two-way ranging". Также добавил свои комментарии в те места, которые неочевидны при первом прочтении.Тема нужна для определения расстояния между двумя радио трансиверами, которые могут определять моменты времени прихода и отправки радиоволны. Такое умеют делать UWB трансиверы, например чип DW1000. Read more Read more ›
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Last week, I introduced you to the world of onchain analysis and explored some of the ways it can be used to gain insights into the cryptocurrency market.Today, we're taking things up a notch with a tutorial that will guide you through running your own onchain analysis. By the end of this tutorial, you'll have the skills and knowledge you need to start analyzing blockchain data and making informed decisions... Read more ›
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In this tutorial we'll learn how to write cross-platform code in C using the system functions on popular OS (Windows, Linux/Android, macOS & FreeBSD): file management functions and file I/O, console I/O, pipes (unnamed), execution of the new processes. We're going to write our own small helper functions on top of low-level userspace system API and use them so that our main code can run on any OS without modifications.... Read more ›
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TL;DR: All AI-based noise cancellations suck, only the physical cancellation technique works! And physical cancellation is implemented well only in Jabra devices yet, but other features suck them! All Bluetooth headsets suck too! So, no solution yet, just complaints!The environment: I work in a pretty talky office room, where sit around 10 people, and all of them have many online conferences every day, including me. So, silence in the room... Read more ›
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История о том, почему «обновить ссылку» — задача для техлида: тут и про тесты, и про вёрстку, и про архитектуры процессоров. Бульварное чтиво из 15+1 мемов Read more ›
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![[Translation] PostgreSQL 16: Part 4 or CommitFest 2023-01](https://times42.com/media/9/5/5/5920955_640x200.jpg "[Translation] PostgreSQL 16: Part 4 or CommitFest 2023-01")
We continue to follow the news of the PostgreSQL 16 release, and today, the results of the fourth CommitFest are on the table. Let's have a look.If you missed the previous CommitFests, check out our reviews for 2022-07, 2022-09 and 2022-11. Read more → Read more ›
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Hey there, my fellow crypto enthusiast! Are you looking to take your trading game to the next level and gain a deeper understanding of the market trends and behavior? If so, then onchain analytics is the perfect tool for you. Read more Read more ›
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![[Translation - recovery mode ] What is IT? Where are they trying to throw? Pick direction/profession and your first programming language](https://times42.com/media/2/2/6/5895226_640x200.jpg "[Translation - recovery mode ] What is IT? Where are they trying to throw? Pick direction/profession and your first programming language")
Hope you know it. That Industry exists in our world. Where people-professionals are working, not robots. In fact the average competition for one workplace in IT is about 500 people – the market lacks specialists! This fact is confirmed and is easily found on the Internet.So, my opinion is we need specialists who know their business! For this reason, I wrote about how to become one and what you should... Read more ›
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![[recovery mode] Autofill input fields in Android WebView](https://times42.com/media/2/5/9/5891259_640x200.jpg "[recovery mode] Autofill input fields in Android WebView")
In this article, we will learn about autofill methods for input fields/forms in WebView used inside of an android app. I’d like to stress that the main topic is the autofill in WebView, because, when filling standard EditText views in the app - no issues arise. But when we display content owned by other parties, we can’t fill the form with our data in a simple way. Read more Read more ›
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Microfrontend is it supposed to be: Single Page Application, Server-side rendering and Independent deployments.Example that proves it's possible using React 18 + Suspense on server and Webpack Module Federation Read more Read more ›
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Programming textbooks usually do not indulge us with variety of examples. In most manuals, the exercises are similar to each other and not particularly interesting: create another address book, draw a circle using turtle, develop a website for a store selling some kind of "necessary" advertising nonsense. Too far from the authentic imitation of "The Matrix". Although…How about taking over the control and starting to invent exercises yourself?Would you like... Read more ›
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This is a translation of my own articleThe release of NewLang language with a brand new "feature" is coming, a remodeled version of the preprocessor that allows you to extend the language syntax to create different DSL dialects using macros.What is it about?DSL (Subject Oriented Language) is a programming language specialized for a specific application area. It is believed that the use of DSL significantly increases the level of abstractness... Read more ›
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Business Insider
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9% 5 |
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8% 2 |
Tom's Hardware
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7% 1 |
Eurogamer.net
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7% 5 |
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25.11.2024 00:17
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