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Изходен канал @clockstackwheels · Post #721 · 26.12

Почему я люблю языки с сильной системой типов, проверяемой статическим анализом кода — хорошо написанная программа является своей собственной спецификацией и позволяет выражать через язык программирования законы существования предметной области. Когда-то давно я писал на ActionScript. Там была система типов, но вот десериализация JSON'ов по-умолчанию была в какой-то общий Object, к полям которого нужно было обращаться ["по_строковому_имени"]. В один момент мне потребовалось написать что-то на C#, который я совсем не знал, я стал гуглить, как десериализовать JSON, и с удивлением обнаружил кучу советов заранее объявить класс со всеми нужными полями и десериализовать в него. "Какой ужас!", — подумал я тогда, — "Это же дико неудобно! А если я не знаю полей JSON? А если их много? Отвратительный язык!" Теперь то я прекрасно понимаю, что JSON это контракт, и что правильная десериализация только такая и должна быть, и что в хорошем API в одном поле никогда не бывает данных принципиально разных типов, и так далее. Нет, если вы набиваете вечерами пет-проект или сидите бессонную ночь на хакатоне, нет ничего плохого в том, чтобы взять простой язык с динамическими типами вроде JavaScript или Python, не требующий описывать данные. Но вот в энтерпрайзе, особенно когда над одним проектом работает много людей (а бывает это очень часто) — хорошее использование системы типов убережёт разработчиков от огромного количества ошибок, будет бить их по рукам, когда они пытаются сделать что-то не то, и будет подсказывать, когда они не уверены в чём-то. С помощью статической типизации можно на уровне кода обозначить правила, по которым ведёт себя предметная область вашей программы в реальном мире. Разработчику не только будет сложно их нарушить, но он ещё и станет узнавать какие-то вещи, которые мог не знать раньше. Например, если мы делаем медицинскую CRM, и больница заводит новых пациентов только тогда, когда знает их группу крови, мы можем объявить тип "Пациент" (или, если точнее, "Карта пациента") и запретить создавать экземпляры этого типа, не передав в конструктор группу крови (которая, в свою очередь, тоже является типом, вероятнее всего ValueObject'ом). Если новый программист пришёл в проект, он, во-первых, не сможет записать в БД некорректную карту пациента. Понятно, мы не учитываем случаи, когда новый программист переделывает модели предметной области — это будет хорошо видно на кодревью. А, во-вторых, даже если ему никто не сказал, что пациенты должны быть с группой крови, он узнает это из кода. И уже будет понимать, что в тех процессах реальной жизни, которые он описывает кодом, карта пациента создаётся только при наличии группы крови. А, значит, нужно искать какой-то способ сначала эту группу крови получить, и только потом создавать карту. Программирование моделирует реальный процесс. В настоящей работе даже на языках с типами, конечно, без должного контроля можно написать что угодно. Нужна управленческая воля, компетентность руководства, понимание опасности техдолга, в идеале отдельные должности для архитекторов, опытные лиды и старшие разработчики. Но когда всё это есть, можно отсекать много проблем ещё на старте и проще погружать новичков. #dev

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Намерени 13 подобни публикации

Търсене: #schedule

当前筛选 #schedule清除筛选

😄Schedule ➖➖➖➖➖➖ 🔘Schedule as a noun can be a plan or list of when things happen. 🔜 According to the schedule we start at 9 tomorrow. 🔘A schedule can tell when planes, trains and buses are planned to arrive at and depart from different places. 🔜The flight schedule says that we should be leaving at 1015. 🔘As a verb, schedule means to plan to for something to happen at a certain time. It’s often used in the passive to talk about when things will or should happen. 🔜The meeting was scheduled for 9:30, but everyone was late. #Schedule👨‍🏫@America ➖➖➖➖➖➖➖➖➖➖➖➖ 🆕 Crypto News @Money 😁 Crypto Game @Egame 🇺🇸 US News @America 🇯🇵 Japan News @Japan 🇦🇪 UAE News @Dubai ▶️ Popular Movies @Videos 😜 Best Funny Video @Funnys

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😄Schedule ➖➖➖➖➖➖ 🔘Schedule as a noun can be a plan or list of when things happen. 🔜 According to the schedule we start at 9 tomorrow. 🔘A schedule can tell when planes, trains and buses are planned to arrive at and depart from different places. 🔜The flight schedule says that we should be leaving at 1015. 🔘As a verb, schedule means to plan to for something to happen at a certain time. It’s often used in the passive to talk about when things will or should happen. 🔜The meeting was scheduled for 9:30, but everyone was late. #Schedule👨‍🏫@America ➖➖➖➖➖➖➖➖➖➖➖➖ 🆕 Crypto News @Money 😁 Crypto Game @Egame 🇺🇸 US News @America 🇯🇵 Japan News @Japan 🇦🇪 UAE News @Dubai ▶️ Popular Movies @Videos 😜 Best Funny Video @Funnys

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Doniyor Olimjonov English | IELTS

@doniyorieltss · Post #1884 · 28.01.2024 г., 17:58

IELTS BAND8.5+ #Schedule ✅A - READING! Make sure that you spend at least 1 hour a day on the following (don’t forget to record vocab, underline useful collocations, copy them into your vocab book... if you have one): ✅ B - WATCHING Don't watch your content passively with the video/radio etc. playing in the background. You need to listen attentively since you'll need to do the same in the exam. Train your ear at an early stage and make life easier for yourself down the line. Oh, and if watching something.... subtitles OFF! 1 hour a day, too. 📆 MONDAY 📖National Geographic: select THEMES and randomly read an article whether science, travel, adventure, animals etc. 💻Documentary: think about what you might have read and type the theme into YouTube 📆 TUESDAY 📖Time Magazine: click the box top left next to TIME and randomly read an article whether politics, business, tech, health etc. 💻YouTube Videos: I have put together a number of YouTube channels I enjoy in a post. 📆WEDNESDAY 📖 The Guardian: Randomly select different themes and select an article at random to read 💻BBC World service is a good one. Loads of different themes for background listening: https://www.bbc.co.uk/sounds/play/live:bbc_world_serv.. 📆THURSDAY 📖Scientific American : randomly select a news article to read. 💻 Documentary: Curiosity Stream is a good one, but it's a paid website. 📆FRIDAY (Entertainment) 📖 Continue reading a book of your choice PROVIDING it’s not a classic (continue with that after your course) 💻 Watch a film of your choice but still have pen and paper ready! Subtitles off!!! 📆SATURDAYS AND SUNDAYS Focus on doing your grammar and vocab exercises, practice tests as well as go over the vocab and things you have recorded during the week. Use the weekend to write your essays. My guidelines: 📌 It doesn't matter if you're interested in the themes or not. In the exam you don't have a choice. So stop being selective. Move beyond Friends and The Big Bang Theory. 📌 Record "chunks of language". Once you've done the article or video, summarize it out aloud recycling that language you have just jotted down. Maybe even write a small summary. 📌 Less is more! Do one article or video a day. That's enough. Better do one, learn and recycle the language rather than watch/read too many and remember nothing. ⚡️@ieltsulugbeks⚡️

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Doniyor Olimjonov English | IELTS

@doniyorieltss · Post #703 · 30.01.2023 г., 15:16

IELTS BAND8.5+ #Schedule ✅A - READING! Make sure that you spend at least 1 hour a day on the following (don’t forget to record vocab, underline useful collocations, copy them into your vocab book... if you have one): ✅ B - WATCHING Don't watch your content passively with the video/radio etc. playing in the background. You need to listen attentively since you'll need to do the same in the exam. Train your ear at an early stage and make life easier for yourself down the line. Oh, and if watching something.... subtitles OFF! 1 hour a day, too. 📆 MONDAY 📖National Geographic: select THEMES and randomly read an article whether science, travel, adventure, animals etc. 💻Documentary: think about what you might have read and type the theme into YouTube 📆 TUESDAY 📖Time Magazine: click the box top left next to TIME and randomly read an article whether politics, business, tech, health etc. 💻YouTube Videos: I have put together a number of YouTube channels I enjoy in a post. 📆WEDNESDAY 📖 The Guardian: Randomly select different themes and select an article at random to read 💻BBC World service is a good one. Loads of different themes for background listening: https://www.bbc.co.uk/sounds/play/live:bbc_world_serv.. 📆THURSDAY 📖Scientific American : randomly select a news article to read. 💻 Documentary: Curiosity Stream is a good one, but it's a paid website. 📆FRIDAY (Entertainment) 📖 Continue reading a book of your choice PROVIDING it’s not a classic (continue with that after your course) 💻 Watch a film of your choice but still have pen and paper ready! Subtitles off!!! 📆SATURDAYS AND SUNDAYS Focus on doing your grammar and vocab exercises, practice tests as well as go over the vocab and things you have recorded during the week. Use the weekend to write your essays. My guidelines: 📌 It doesn't matter if you're interested in the themes or not. In the exam you don't have a choice. So stop being selective. Move beyond Friends and The Big Bang Theory. 📌 Record "chunks of language". Once you've done the article or video, summarize it out aloud recycling that language you have just jotted down. Maybe even write a small summary. 📌 Less is more! Do one article or video a day. That's enough. Better do one, learn and recycle the language rather than watch/read too many and remember nothing. ⚡️@ieltsulugbeks⚡️

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Doniyor Olimjonov English | IELTS

@doniyorieltss · Post #561 · 22.01.2023 г., 17:26

IELTS BAND8.5+ #Schedule ✅A - READING! Make sure that you spend at least 1 hour a day on the following (don’t forget to record vocab, underline useful collocations, copy them into your vocab book... if you have one): ✅ B - WATCHING Don't watch your content passively with the video/radio etc. playing in the background. You need to listen attentively since you'll need to do the same in the exam. Train your ear at an early stage and make life easier for yourself down the line. Oh, and if watching something.... subtitles OFF! 1 hour a day, too. 📆 MONDAY 📖National Geographic: select THEMES and randomly read an article whether science, travel, adventure, animals etc. 💻Documentary: think about what you might have read and type the theme into YouTube 📆 TUESDAY 📖Time Magazine: click the box top left next to TIME and randomly read an article whether politics, business, tech, health etc. 💻YouTube Videos: I have put together a number of YouTube channels I enjoy in a post. 📆WEDNESDAY 📖 The Guardian: Randomly select different themes and select an article at random to read 💻BBC World service is a good one. Loads of different themes for background listening: https://www.bbc.co.uk/sounds/play/live:bbc_world_serv.. 📆THURSDAY 📖Scientific American : randomly select a news article to read. 💻 Documentary: Curiosity Stream is a good one, but it's a paid website. 📆FRIDAY (Entertainment) 📖 Continue reading a book of your choice PROVIDING it’s not a classic (continue with that after your course) 💻 Watch a film of your choice but still have pen and paper ready! Subtitles off!!! 📆SATURDAYS AND SUNDAYS Focus on doing your grammar and vocab exercises, practice tests as well as go over the vocab and things you have recorded during the week. Use the weekend to write your essays. My guidelines: 📌 It doesn't matter if you're interested in the themes or not. In the exam you don't have a choice. So stop being selective. Move beyond Friends and The Big Bang Theory. 📌 Record "chunks of language". Once you've done the article or video, summarize it out aloud recycling that language you have just jotted down. Maybe even write a small summary. 📌 Less is more! Do one article or video a day. That's enough. Better do one, learn and recycle the language rather than watch/read too many and remember nothing. ⚡️@ieltsulugbeks⚡️

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JIFAR CAREER

@JIFAR1 · Post #178 · 29.06.2025 г., 20:28

#ESSLCE#Schedule ነገ የሚጀመረው የ2017 ዓ.ም ሀገር አቀፍ የሁለተኛ ደረጃ ትምህርት መልቀቂያ ፈተና የተፈጥሮ ሳይንስ ተማሪዎች የመጀመሪያ እና የሁለተኛ ዙር የፈተና መርሐግብር በወረቀት እና በኦንላይን የሚሰጠው ብሔራዊ ፈተና ከሰኔ 23 እስከ ሐምሌ 08/2017 ዓ.ም ይቆያል። ፈተናውን ለመውሰድ 608 ሺህ ተማሪዎች የተመዘገቡ ሲሆን፤ 150 ሺህ የሚሆኑት በበይነ መረብ የሚፈተኑ ናቸው። ለሁሉም የ 12ተኛ ክፍል ተማሪዎች መልካም ፈተና ይሁንላችሁ ሲል JIFAR CAREER ልባዊ ምኞቱን ይገልፃል

JIFAR CAREER

@JIFAR1 · Post #181 · 07.07.2025 г., 21:45

#ESSLCE #SocialScience #Schedule የ2017 ዓ.ም ሀገር አቀፍ የሁለተኛ ደረጃ ትምህርት መልቀቂያ ፈተና የማኀበራዊ ሳይንስ ተማሪዎች የፈተና መርሐግብር: በወጣው መርሐግብር መሰረት ነገ ሐምሌ 01/2017 ዓ.ም የእንግሊዝኛ እና የሒሳብ ትምህርት ፈተናዎች በጠዋት እና በከሰዓት ፈረቃዎች ይሰጣሉ። በወረቀት እና በኦንላይን የሚሰጠው የማኀበራዊ ሳይንስ ተማሪዎች ፈተና፤ ከሐምሌ 01-08/2017 ዓ.ም ይቆያል።

djangoproject

@djangoproject · Post #262 · 16.02.2017 г., 07:24

http://masnun.com/2015/11/20/python-asyncio-future-task-and-the-event-loop.html On any platform, when we want to do something #asynchronously, it usually involves an #event loop. An event loop is a loop that can register #tasks to be executed, execute them, delay or even cancel them and handle different events related to these operations. Generally, we #schedule multiple async functions to the event loop. The loop runs one function, while that function waits for #IO, it pauses it and runs another. When the first function completes IO, it is resumed. Thus two or more functions can #co_operatively run together. This the main goal of an event loop.

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Venture Village Wall 🦄

@venturevillagewall · Post #3857 · 12.01.2025 г., 16:00

FTX Announces Preliminary Fund Distribution Schedule 🔵 FTX reveals a preliminary payment distribution schedule for creditors. 🔵 Claims under $50k total $1.2 billion. 🔴 By January 20: Preliminary claims must be met. 🔴February 25 - March 4: Expected period for fund distribution begins. 🤔 Will this bring additional liquidity to the market? Read more #FTX#Crypto#Market#Liquidity#Payments#Claims#Finance#Investments#Bitcoin#News#Updates#Distribution#Schedule#CryptoTwitter#Investors#Creditors#Funds#Return#January#February#March

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