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Изходен канал @clockstackwheels · Post #236 · 28.02

Сопоставление с образцом (pattern matching) — сильный механизм языков программирования, который, к сожалению, встречается не так часто. Причём, как в коде разработчиков, так и в поддержке со стороны самого языка. Разработчики на функциональных языках используют этот механизм довольно часто, потому что у них вообще многое определяется статически через правильный подход к системе типов. Разработчики же на императивных языках очень любят огромные многоуровневые ветвления. Есть даже такое понятие «Спагетти-код» — раньше его применяли к коду, перегруженному операторами перехода, но в современном виде это скорее об избытке операторов условия. Pattern matching позволяет накладывать на объекты некоторый трафарет и смотреть, попадают ли они под него. Это не только выглядит лаконичнее и короче, чем дерево условий, но ещё и понятнее с точки зрения восприятия человеком: вот у нас заказ содержит более 10 элементов и при этом стоит более 1000 долларов, значит делаем на него скидку 10 центов. При этом трафарет работает как сортировщик монеток: самая маленькая проваливается в первый паз, следующая по размеру в следующий итд, применение условий идёт сверху вниз. Есть и неявный плюс: такой подход автоматически провоцирует разработчиков проводить проверку на null. Ведь null не может подходить под трафарет «содержит более 10 товаров». К счастью, в C# этот механизм в последних версиях активно развивают и совершенствуют. И это одно из многочисленных преимуществ C# над Java. #dev

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Nothing Phone (2) | Updates

@NothingPhone2Updates · Post #484 · 09.12.2024 г., 16:44

MistOS - OFFICIAL | Android 15 | Nothing Phone (2) 📝 Details: - Version: v3.0 (Nebula) - Device: #Pong - Released: 09/12/24 ⬇️ Download: Gapps | Vanilla 📖 Changelogs: Device | Source 📔 Installation: Here 🖼 Screenshot : here 🆘 Support: Device 🏷 Tags: #AOSP#ROM#nebula#Official ✍️ Note: • Initial Android 15 • Clean flash recommended • Both Gapps and Vanilla build are available. • Dolby Atmos available. 🏆 Credits: - Chandu and drishal for DT - Hellboy for Meteoric kernel - Fabian & Hellboy for PA Glyph Implementation - Testers - laxus,devsaee and Italian style 😎 Maintainer : @Butterfingers443 x @AgBKartikey 🔔 Updates : @NothingPhone2Updates 💬 Chat : @NothingPhone2

Interesting Planet 🌍

@interesting_planet_facts · Post #1347 · 20.03.2026 г., 12:11

🌎 Giant clouds called molecular clouds are where new stars are born. These clouds, made mostly of hydrogen gas, can stretch for hundreds of light-years. The Orion Molecular Cloud Complex, one of the closest such regions, is located about 1,350 light-years from Earth and is home to thousands of young stars. ✨ #astronomy⚡#stars⚡#nebula 👉subscribe Interesting Planet 👉more Channels ​

Universe Mysteries 🪐

@cosmomyst · Post #208 · 02.09.2025 г., 00:11

🪐 In the galaxy NGC 1999, astronomers observed a mysterious, dark patch once believed to be a dense cloud of cosmic dust blocking light. However, further study revealed this region is actually a rare "hole" in the nebula—an empty cavity punched through the glowing gas by powerful stellar winds from young, massive stars, making it a striking example of cosmic sculpting at work. ✨ #nebula⚡#phenomena⚡#astronomy⚡#nasa⚡#galaxy⚡#stars⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries ​

Universe Mysteries 🪐

@cosmomyst · Post #16 · 29.07.2025 г., 20:51

🪐 In the Carina Nebula, the massive star Eta Carinae is surrounded by strange, expanding clouds known as the Homunculus Nebula—vast lobes of gas and dust hurled into space by a series of explosive outbursts in the 19th century. These violent eruptions have sculpted one of the most complex and enigmatic structures ever observed, with glowing filaments and mysterious hidden cavities still being revealed by the Hubble Space Telescope. ✨ #EtaCarinae⚡#nebula⚡#mysteries 👉subscribe Universe Mysteries

Universe Mysteries 🪐

@cosmomyst · Post #61 · 02.08.2025 г., 13:11

🪐 The Egg Nebula (CRL 2688) in Cygnus glows with haunting, layered arcs of dust and gas, shaped by fierce stellar winds from a dying central star. These concentric shells, illuminated by starlight scattered through dense clouds, reveal a dramatic portrait of a Sun-like star in its brief, enigmatic transition into a planetary nebula. ✨ #nebula⚡#stars⚡#transformation⚡#nasa⚡#galaxy⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries

Universe Mysteries 🪐

@cosmomyst · Post #24 · 30.07.2025 г., 00:51

🪐 In the star-forming region of the Orion Nebula, astronomers have identified "proplyds"—dense disks of gas and dust swirling around newborn stars. These proplyds are being sculpted by fierce ultraviolet radiation from nearby massive stars, their bright comet-like tails pointing away from blazing giants such as Theta1 Orionis C. ✨ #Orion⚡#proplyds⚡#nebula 👉subscribe Universe Mysteries

Universe Mysteries 🪐

@cosmomyst · Post #23 · 30.07.2025 г., 00:00

🪐 The Boomerang Nebula in the constellation Centaurus is the coldest known place in the universe, with temperatures dropping to a chilling -272°C—colder than the cosmic microwave background itself. This young planetary nebula expels gas at incredible speeds, creating a ghostly, double-lobed shape that shrouds its dying central star in frigid mystery. ✨ #BoomerangNebula⚡#coldest⚡#nebula 👉subscribe Universe Mysteries

Universe Mysteries 🪐

@cosmomyst · Post #349 · 29.09.2025 г., 20:21

🪐 The star AG Carinae, located about 20,000 light-years away, is a rare example of a "luminous blue variable"—an unstable giant star that can erupt in massive outbursts, shedding huge shells of gas and dust. AG Carinae shines millions of times brighter than the Sun and is surrounded by a glowing nebula created by its violent eruptions, making it one of the most volatile and spectacular stars in our galaxy. ✨ #unusualstars⚡#stellareruption⚡#nebula⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries 👉more Channels ​

Universe Mysteries 🪐

@cosmomyst · Post #187 · 25.08.2025 г., 13:11

🪐 In the center of the galaxy NGC 2392, also known as the "Eskimo Nebula," astronomers have detected fast, energetic jets of gas blasting outwards at speeds of over 200 kilometers per second. These jets, launched by the dying central star, punch through surrounding shells of glowing gas, creating intricate, layered patterns that make this nebula one of the most visually stunning and mysterious cosmic objects observed by the Hubble Space Telescope. ✨ #nebula⚡#jets⚡#emission⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries ​

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