News from Habr

React Native Splash Screen — support for different themes

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dev_family @ Habr 1 place · 09/20/2024 05:27 EDT

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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10 Easy to Build an Android Chat App using Kotlin in 2022

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parthiba @ Habr 2 place · 08/22/2022 05:40 EDT

This tutorial will guide you step by step in building an Android chat app in Kotlin with the help of third-party messaging SDKs. The reason I chose Kotlin for this tutorial is that - it is a lightweight programming language suggested by Google for building apps that work on Android devices. In the steps ahead, I’ll show you how to develop an app in Android Studio, with messaging features that... Read more ›

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Technical Note. From C++1998 to C++2020

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burzzo @ Habr 1 place · 08/20/2022 18:00 EDT

This technical note is devoted to covering information regarding all primary C++ programming language standards: C++03/98/11/14/17/20.I am glad to share a technical note with some details regarding the C and all primary C++ programming language standards based on my experience and materials from the Reference Section of this document.As of August 15, 2022, this technical note in PDF format consists of 72 pages. Read more Read more ›

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[Translation] Queries in PostgreSQL. Hashing

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kaze_no_saga @ Habr 1 place · 08/17/2022 02:51 EDT

Queries in PostgreSQL. HashingSo far we have covered query execution stages, statistics, sequential and index scan, and have moved on to joins. Read more → Read more ›

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Four UX failings that e-commerce can fix with design

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nasnimal @ Habr 1 place · 08/15/2022 03:43 EDT

On average, online store users make 64 clicks before adding a product to the cart. Some clicks are useful - so-called discovery clicks that help lead to users finding a product they wish to buy, and some are useless that come as the result of poor UX. With great competition for convenience and increasingly reducing attention spans of users, each useless click reduces the number of visitors that will reach... Read more ›

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[Translation] Conceptogram as a method to create more effective technical documentation

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Park_er @ Habr 1 place · 08/12/2022 04:09 EDT

Konstantin Kotelnik, an analyst at Innotech, ponders over making technical documentation easier to understand for developers and helping the clip-thought generation work effectively with large quantities of data. Read the article to find out about the potential emergence of a graphical IT-Esperanto and the standardisation of technical language. Read more Read more ›

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How I gave my old laptop second life

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Labertte @ Habr 2 place · 08/12/2022 02:54 EDT

17-19 min readHi y'all, my name is Labertte and I use Arch btw.Probably like every other Linux user, I'd like to buy a ThinkPad, put some lightweight distribution like Arch or Gentoo on it, and then go to Starbucks, get a soy latte and tell everyone that I use "linux". But I decided to go a little different route and give a chance to my old laptop that I was... Read more ›

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A tale of how PVS-Studio reimagined the bug

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breycher @ Habr 1 place · 08/10/2022 08:22 EDT

You all know our mascot — a unicorn — many people grew fond of him! However, PVS-Studio has a supporting character who is also the antagonist of our product — a bug! Well, a bug is not omnipresent, indestructible evil. It's more like an everyday or a work-related trouble. In this article, you'll learn how we created a new character, and why he looks like a ladybug. Oh, and if... Read more ›

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Пасхалки в DNS

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temujin @ Habr 2 place · 08/10/2022 05:00 EDT

Сетевой стек TCP/IP не в одночасье стал паутиной, соединившей интернет от края до края. Вся система развивалась довольно бурно, противоречиво, но в целом через инкрементальные усовершенствования в разных местах. Не было какого-то единого плана создания глобальной коммуникационной сети и подходящего под эти цели стека протоколов. Из-за этого вместо сферической семиэтажной OSI в вакууме в наличие у нас есть причудливое смешение технологий и протоколов, где стандарты, написанные в 1970-х всё ещё... Read more ›

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Backup & Recovery Solutions from China

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inframan @ Habr 1 place · 08/04/2022 03:01 EDT

There are new challenges that force IT companies to look for non-trivial approaches to solve the problems of their customers every year.  And as you know LANIT-Integration is not an exception. Our team has already managed to work with many products, but we never stop discovering new ones.In this article I would like to provide an overview of backup and recovery software from Chinese vendors and to compare these solutions... Read more ›

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FL_PyTorch is publicly available on GitHub

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burzzo @ Habr 1 place · 08/02/2022 20:13 EDT

FL_PyTorch: Optimization Research Simulator for Federated Learning is publicly available on GitHub.FL_PyTorch is a suite of open-source software written in python that builds on top of one of the most popular research Deep Learning (DL) frameworks PyTorch. We built FL_PyTorch as a research simulator for FL to enable fast development, prototyping, and experimenting with new and existing FL optimization algorithms. Our system supports abstractions that provide researchers with sufficient flexibility... Read more ›

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Systematic coding and digital signature

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ENCRY @ Habr 1 place · 08/01/2022 07:06 EDT

Once the Teacher asked the Author:Are there methods of redundancy introducing at an informational level, other than those that are studied by the theory of error-correcting codes? Emphasizing that he is talking about information redundancy, the Teacher thus made it clear that the question does not imply various ways of energy redundancy introducing, which are well studied in communication theory. After all, the noise immunity of information transmission is traditionally... Read more ›

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How abortion in the age of surveillance capitalism turns Internet into a dystopia

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Advertone @ Habr 1 place · 07/31/2022 07:15 EDT

The reversal of Roe v. Wade, which launched a furious debate about abortion rights, has a side — and a very itchy side. In June 2022, the Supreme Court struck down federal protections for abortion rights in the United States, turning the decision on the legality of abortion over to the state level, many of whom had long been waiting for it: they had «trigger» laws banning abortion, and state... Read more ›

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Экспорт метрик в Prometheus из логов PostgreSQL с помощью Vector

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tmnkun @ Habr 1 place · 07/29/2022 03:18 EDT

В этой статье я хочу рассказать о не совсем обычном использовании логов — о получении из лог-файлов метрик для Prometheus. Это может быть полезно, когда существующие экспортеры не предоставляют нужные метрики, а писать свой экспортер не хочется или очень затратно. Read more Read more ›

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Как разработчику развиваться в маленьком городе

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NatalieVT @ Habr 2 place · 07/28/2022 05:05 EDT

Есть мнение, что если разработчик работает где-то в маленьком городе, то это приговор: значит, ближайшие лет двадцать придётся делать одни и те же задачи — никаких серьёзных перспектив и изменений не предвидится. Но в реальности дела обстоят иначе. Достаточно не сидеть сложа руки и пользоваться возможностями, которые появляются на пути.Мы поговорили с разработчиками, которые живут в небольших городах и посёлках, о том, как не дать себе замкнуться в рамках своего... Read more ›

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[Translation] Testing Metrics You Must Add to Your Process

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Quality_department @ Habr 2 place · 07/27/2022 10:01 EDT

Testing is one of the key processes in development. However, without analysis it is tough to say how effective testers really are. Innotech’s lead tester-engineer Pavel Petrov shared a number of metrics that are being used in project work. Read more Read more ›

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Как настроить сквозную маркетинговую аналитику в режиме self-service (аналитики самообслуживания)

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Epoch8 @ Habr 2 place · 07/26/2022 10:21 EDT

Как настроить сквозную маркетинговую аналитику в режиме self-service (аналитики самообслуживания).Расскажем, как решить задачу кастомной маркетинговой аналитики так, чтобы:- данные были хорошо документированы;- данные были доступны бизнес-пользователям в самостоятельном режиме;- систему можно было легко поддерживать и, при необходимости, быстро подключать других аналитиков к работе. Read more Read more ›

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The Systems Engineering Methodology for Startups

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dparshkov @ Habr 2 place · 07/25/2022 15:04 EDT

Creating a product startup can be an exciting experience, but it can be a daunting one as well. On average, only 1 out of 10 startups is successful, according to the Global Startup Ecosystem Report. Therefore, to raise your prospects, there are quite a number of important considerations to make in advance. Bearing in mind everything you need when launching a startup is a challenging task, so it’d be a... Read more ›

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Write Once Run Anywhere

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Tetragius @ Habr 1 place · 07/22/2022 04:58 EDT

Вспоминается мем, где человек говорит: «JavaScript — это круто, на нем можно делать роботов и мобильные приложения», а потом его душит собака. Я себя представляю таким человеком, но надеюсь, меня никто не задушит, потому что я делаю на JavaScript вещи, которые в принципе не положено на нем делать. Например, пульт управления машинкой с телефона или любого другого устройства. Прошивка, и вообще всё на JS. Мы разберем подробнее такую машинку, джойстик,... Read more ›

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Дашборды и прибыль: как посчитать всё не только правильно, но и красиво

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digitalsibur @ Habr 2 place · 07/21/2022 07:49 EDT

Привет! Как мы уже не раз рассказывали, СИБУР поделен на несколько сквозных процессов. Сквозные процессы – это бизнес-домены, которые объединяют в себе бизнес-команды одной сферы. У нас таких много, но конкретно этот пост будет посвящён дашбордам для O2C. В случае O2C – это также сквозной процесс, который расшифровывается как Order to cash. Он отвечает за привлечение новых клиентов и получение прибыли. Кроме того, такой подход помогает перестраивать бизнес-процессы на предприятии... Read more ›

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Q2 2022 DDoS attacks and BGP incidents

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Shapelez @ Habr 3 place · 07/21/2022 06:30 EDT

The second quarter of the year has ended and, as usual, we take a look back at the mitigated DDoS attacks activity and BGP incidents that occurred between April and June 2022. Read more Read more ›

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