投稿時間:2023-06-04 20:12:54 RSSフィード2023-06-04 20:00 分まとめ(14件)

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IT	気になる、記になる…	楽天スーパーSALEで｢AirPods Pro (第2世代)｣が4,300円オフに − ｢Apple Watch Ultra｣も6,000円オフ	https://taisy0.com/2023/06/04/172498.html	apple	2023-06-04 11:00:00
IT	気になる、記になる…	楽天市場、3ヶ月に1度の大型セール｢楽天スーパーSALE｣をスタート（6月11日まで）	https://taisy0.com/2023/06/04/172495.html	期間限定	2023-06-04 11:00:00
python	Pythonタグが付けられた新着投稿 - Qiita	Langchain・Semantic Kernel・guidanceでエージェント機能を実装して比較してみた。	https://qiita.com/sakue_103/items/6ffee0bc267e71eafd60	guidance	2023-06-04 20:00:10
python	Pythonタグが付けられた新着投稿 - Qiita	【Paiza問題集】条件分岐/AND+OR	https://qiita.com/amron/items/5682140465e6be931370	andorstepandand	2023-06-04 19:40:03
js	JavaScriptタグが付けられた新着投稿 - Qiita	AkashicEngineを使用して簡易的なHSVツールを自作した	https://qiita.com/mamono/items/2d9588bd440cab8a38fa	akashicengine	2023-06-04 19:43:15
海外TECH	MakeUseOf	How to Find Out What Country Your iPhone Came From	https://www.makeuseof.com/how-to-find-out-what-country-your-iphone-was-manufactured-in/	fromneed	2023-06-04 10:30:19
海外TECH	DEV Community	React Native is Multi Threaded	https://dev.to/ponikar/react-native-is-multi-threaded-44aj	React Native is Multi ThreadedTL DR React Native is multi threaded DisclaimerThis blog represents my personal thoughts and ideas for achieving exceptional performance in React Native While it s meant to inspire and explore new possibilities please remember that the techniques discussed may not work for everyone or in every situation Let s keep an open and respectful dialogue and feel free to share your thoughts and questions as we delve into the realm of pushing performance limits in React Native CueWhat if I told this to someone suffering from performance issues while building a React Native app They d probably troll me in the comment section and I can t blame them But before you jump to conclusions give me minutes to explain why I believe React Native is multi threaded Before we delve into that I want to address all readers whether you ve been developing React Native apps for a long time or are just starting out We re at the beginning of the Era of React Native and things are changing with the introduction of the new architecture called JSI that powers React Native apps But I won t go into much detail about JSI here there are good talks and blogs available for that Mobile Apps At the end of the day we re building native mobile apps JavaScript acts as the controller If we look at it broadly we have two threads as mentioned in the React Native blog UI Native ThreadJS ThreadThe native thread executes the native iOS Java code while the JS code runs in the JS thread As React Native developers we often interact with the JS thread because we primarily know JS and don t have much knowledge of the native languages such as Java Kotlin and Objective C Swift Think of it as multiple universes We know that another universe exists but we have no idea how to communicate with it The old bridge simply sends data between the JS thread and the native thread with the JS thread not interacting much with the native thread JavaScript is Single ThreadedJavaScript is designed to execute one thing at a time It can t run multiple code executions simultaneously effectively blocking the entire JS thread Consequently apps become unresponsive SolutionReact Native wizards identified this problem and realised that expensive tasks like animations can t run on the JS thread It would be awesome if we could run animations on the native thread and free up the JS thread as much as possible This led to the development of React Native Reanimated I want to give a shoutout to Swmansion the company behind this library as most React Native apps now use it for animations Secret Sauce The idea is simple if you want to make React Native apps faster keep the JS thread as free as possible But how Readers might think Do you want us to write platform specific code now because JS can t handle heavy tasks Well no By using libraries like Reanimated React Native MMKV and React Native Skia you leverage the native thread However I know there are developers building amazing things who think outside the box I m always thrilled when I read engineering blogs from companies like Netflix Meta and Shopify They create solutions beyond the limits So for that extra momentum you might consider writing your own solution in native code to make your app stand out You need to sit with your team and make important decisions In this AI era writing and understanding boilerplate code couldn t be easier thanks to ChatGPT I understand that in of cases you won t want to choose this path However if you really want to write native code for your requirements here s what you can do Write the implementation in Native language Create a JSI binding that connects this native method to JS code Call this method from JS Async Sync This is how you can offload your JS thread and make your app blazingly fast Final Thoughts I know this solution is challenging and may not be for everyone especially those who are just starting withReact Native Unfortunately there is no declarative way to offload your JavaScript thread in React Native But the future is bright and we will have support for offloading the JS thread Actually there is a solution React Native Reanimated has something called a worklet which runs JS code in the UI thread However you need to be very careful when using this I will provide the documentation link here As I mentioned before this is a new era of React Native and things will get a lot better in the near future If you re a beginner keep doing what you re doing try to understand how React Native works and stay aware of what s happening in the React Native world The best way to do this is by watching RN talks reading blogs and engaging with the community That s it from my side Thank you so much for reading the blog If you have any questions please put them in the comment section I will see you in the brand new blog Stay tuned Darshan PonikarSigning off Edited by ChatGPT	2023-06-04 10:03:58
ニュース	BBC News - Home	Fair for migrants to share hotel rooms, says Robert Jenrick	https://www.bbc.co.uk/news/uk-politics-65802335?at_medium=RSS&at_campaign=KARANGA	jenrickimmigration	2023-06-04 10:49:03
ニュース	BBC News - Home	India train disaster: Signal fault the likely cause, minister says	https://www.bbc.co.uk/news/world-asia-india-65801807?at_medium=RSS&at_campaign=KARANGA	railway	2023-06-04 10:05:39
ニュース	BBC News - Home	Succession actor Brian Cox on why he hasn't watched finale	https://www.bbc.co.uk/news/entertainment-arts-65803015?at_medium=RSS&at_campaign=KARANGA	actor	2023-06-04 10:03:00
ニュース	BBC News - Home	Karim Benzema: Five-time Champions League winner to leave Real Madrid after 14 years	https://www.bbc.co.uk/sport/football/65803169?at_medium=RSS&at_campaign=KARANGA	madrid	2023-06-04 10:42:52
ニュース	BBC News - Home	Vote on CBI's reforms nerve-wracking, says new boss	https://www.bbc.co.uk/news/business-65802757?at_medium=RSS&at_campaign=KARANGA	bossrain	2023-06-04 10:31:36
ニュース	BBC News - Home	Man arrested at Wembley over '97' football shirt	https://www.bbc.co.uk/news/uk-england-65800061?at_medium=RSS&at_campaign=KARANGA	offence	2023-06-04 10:50:15
ニュース	BBC News - Home	Karim Benzema: How do Real Madrid prepare for life without France striker?	https://www.bbc.co.uk/sport/football/65786097?at_medium=RSS&at_campaign=KARANGA	departure	2023-06-04 10:47:05