Hi all! The dev.family team is in touch. In this article, we are sharing a short guide on how to install Splash Screen in a cross-platform app written in React Native with support for multiple themes.Splash screen is the first screen that users see before loading into the main application. This screen is perhaps the best way to make the name of your app, and in general, its entire name,... Read more ›
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We continue to review variants of load tests. In this article we will go over the testing methodology and conduct a load test that we will use to try and determine the number of users that could watch and stream at the same time, meaning the users will simultaneously publish and view the streams. Read more Read more ›
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On August 25th, 2021, the Linux kernel celebrated its 30th anniversary. Since then, it's changed a lot. We changed too. Nowadays, the Linux kernel is a huge project used by millions. We checked the kernel 5 years ago. So, we can't miss this event and want to look at the code of this epic project again. Read more Read more ›
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Есть две технологии в ИТ, которые казалось должны были исчезнуть на рубеже прошлого века, но их живучесть и удобство раз за разом отодвигает их уход со сцены. Речь идет об IPv4 и X11. Если первый из них практически во всех аспектах уступает IPv6, то преимущества Wayland, как технологии над X11 очевидны не всем. Wayland вовсе не универсален, как X Windows System, он намного более прост. Это дает ему ряд преимуществ... Read more ›
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XSS - or cross-site scripting - is one of the most common vulnerabilities in web applications. It has been on the OWASP Top 10 list (the list of the most critical security risks to web applications) for a while now. So let's figure out together how your browser can acquire and execute a script from a third-party website, and what this may lead to (spoiler: your cookies could get stolen,... Read more ›
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This article is a continuation of our series of write-ups about load tests for our server. We have already discussed how to compile metrics and how to use them to choose the equipment, and we also provided an overview of various load testing methods. Today we shall look at how the server handles stream mixing. Read more Read more ›
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In my project, I was faced with the need to implement a scroll bar. The standard approaches didn't fully satisfy what designers wanted to see. Here is an example, it is slightly different in appearance from what I needed, but the essence is approximately the same: the scroll bar should be on the right side of the list and take into account the padding of the scroll bar, with the... Read more ›
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![[Translation] One does not simply calculate the absolute value](https://times42.com/media/7/2/2/2758722_640x200.jpg "[Translation] One does not simply calculate the absolute value")
It seems that the problem of calculating the absolute value of a number is completely trivial. If the number is negative, change the sign. Otherwise, just leave it as it is. In Java, it may look something like this:public static double abs(double value) { if (value < 0) { return -value; } return value; }It seems to be too easy even for a junior interview question. Are there any pitfalls... Read more ›
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So, I finally found a moment to write a bit about how we created the water for TReload. Our basic goal was to flood all of the levels with acid - a lot of acid, as the flooded area is massive :) Here’s one of the results which we got out of this process: Read more Read more ›
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The The Open Network (TON) is a fast, secure and scalable blockchain and network project, capable of handling millions of transactions per second.It was originally introduced by Telegram and called Telegram Open Network. Unfortunately, in May 2020, they announced the closure of the project due to the US court decision. Right after that, three different organizations announced their intentions to continue work on the blockchain: TON Labs, NewTON (TON Foundation),... Read more ›
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In one of the previous articles, I’ve already written about the hybrid monitoring system from Monq. Almost two years have passed since then. During this time, Monq has significantly updated its functionality, a free version has appeared, and the licensing policy has been updated. If monitoring systems in your company start to get out of control, and their number rushes somewhere beyond the horizon, we suggest you take a look... Read more ›
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Что может быть ценнее новых идей и нового опыта? Только возможность обсудить их вместе с людьми, которые в теме. Мы решили сделать для вас подборку самых интересных frontend-сообществ и полезных каналов на YouTube для разработчиков JavaScript и веб-дизайнеров. Read more Read more ›
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Hello, Habr! Not only traders but also mathematicians and programmers work with stock markets. Director of Engineering at Luxoft Artem Sosulnikov tells about data, which specialists of quantitative hedge funds work with, things they pay attention to, and conditions in such companies. Read more Read more ›
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With the .NET5 release further development of some projects was questionable due to the complexity of porting. One can abandon small outdated libraries or find a replacement. But it's hard to throw away Microsoft.Office.Interop.Word.dll. Microsoft doesn't plan to add compatibility with .NET Core/5+, so in this article we focus on creating Word files with Open XML SDK. Read more Read more ›
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In this video, we will look at how to connect brushless motor controllers to a Linux computer. Specifically, we will use a computer running Debian. The same steps would work for Ubuntu Linux and other Linux distributions derived from Debian. I've got a small sensorless brushless motor, and a bigger brushless motor with a built-in absolute encoder. Lets look at how to control those from my Debian Linux computer. Servosila... Read more ›
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Привет, Хабр. Я часто вижу, что разработчики плохо знают, как работает свойство display. Это приводит к разного рода ошибкам. Чтобы побороть это, я собрал наиболее популярные значения и описал, как они влияют на элемент. Все эксперименты я выложил в виде шпаргалки на Codepen, чтобы вы могли проинспектировать их и изучить. Read more ›
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Thanks for your feedbacksI thank the members of the Habr community for their benevolent attitude to the article by the author «Speed Dating with the CodeIgniter 4 on GitHub» in the form of votes and comments.The friendly attitude to the author prompted him to continue developing a topic dedicated to PHPUnit as part of CodeIgniter 4.Install Xdebug on XAMPP (Windows 32-bit (x86))1. Why Xdebug? In file «appstarter/tests/README.md» in the «Requirements»... Read more ›
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PHP is widely known as an interpreted programming language used mainly for website development. However, few people know that PHP also has a compiler to .NET – PeachPie. But how well is it made? Will the static analyzer be able to find actual bugs in this compiler? Let's find out! Read more Read more ›
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In the previous article we went over a load test whose data could be used to choose a load-appropriate server. In the course of the testing, we would publish a stream on one WCS, and we would pick up that stream several times using a second WCS. The acquired results could be used as a basis for decisions on server operability. Some would (justly) have concerns regarding the possible biases... Read more ›
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In this video, we will look at how to connect brushless motors to a Windows computer via USB. We are going to connect a network of Servosila brushless motor controllers to the computer. The other option is CANbus interface, but we will look at CANbus in a dedicated video. A regular USB cable is used. Note that the USB cable is not used to power the controller and its motor.... Read more ›
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The PVS-Studio team is increasing the number of diagnostics with each new release. Besides, we are improving the analyzer's infrastructure. This time we added the plugin for JetBrains CLion. Moreover, we introduced intermodular analysis of C++ projects and speeded up the C# analyzer core. Read more → Read more ›
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29.09.2024 19:20
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