TECH |
Engadget Japanese |
オールラウンドチャージ1台で5役。ドイツ人工業デザイナーが手掛けた車載ガジェットセット「BAYU」 |
https://japanese.engadget.com/bayu-car-gadget-103524769.html
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2022-02-22 10:35:24 |
IT |
ITmedia 総合記事一覧 |
[ITmedia News] 飲食店の「フードデリバリー対応端末多すぎ問題」を解決するSaaSが成長中 VCから3億円を調達 |
https://www.itmedia.co.jp/news/articles/2202/22/news188.html
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camel |
2022-02-22 19:42:00 |
IT |
ITmedia 総合記事一覧 |
[ITmedia News] 卒業アルバムをスマホで閲覧できる時代に 老舗メーカーが「卒アルモバイル」を開発、動画や音楽も掲載可能 |
https://www.itmedia.co.jp/news/articles/2202/22/news186.html
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itmedia |
2022-02-22 19:34:00 |
python |
Pythonタグが付けられた新着投稿 - Qiita |
クラスの仕組みを疑似クラスを作りながら学ぶ |
https://qiita.com/sugarflower/items/c444c1bee8121423f3ea
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重要クラス変数へアクセスするやるまでもないんですが、だってコピーした配列に値を入れるだけですからね。 |
2022-02-22 19:12:12 |
Ruby |
Rubyタグが付けられた新着投稿 - Qiita |
AWSのLambdaのRubyでSQSを扱う |
https://qiita.com/aoyagikouhei/items/e5d59e56d8e8a4ee88bb
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秒あたりのトランザクション数は今回の選択メッセージを重複処理されては困るのでfifoにしました。 |
2022-02-22 19:31:01 |
AWS |
AWSタグが付けられた新着投稿 - Qiita |
AWS Lightsail×VSCodeでftp |
https://qiita.com/onewing-angel/items/f3b7a42949e05a6212df
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|
2022-02-22 19:58:23 |
AWS |
AWSタグが付けられた新着投稿 - Qiita |
[備忘録]AWS Certified DevOps Engineer - Professional の合格メモ |
https://qiita.com/pisa-kun/items/cbf94784b26a7bc01c10
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UdemyPracticeExamAWSCertifiedDevOpsEngineerProfessional回分の試験になりますが、解説が豊富なので解説を読むだけで勉強になります。 |
2022-02-22 19:12:58 |
AWS |
AWSタグが付けられた新着投稿 - Qiita |
【必見】AWS,情報処理安全確保支援士の合格ガイド |
https://qiita.com/yukikuuiki/items/a649917d98bf805a747a
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saaaws |
2022-02-22 19:11:01 |
技術ブログ |
Mercari Engineering Blog |
Souzoh エンジニアのオンラインコミュニケーション |
https://engineering.mercari.com/blog/entry/20220222-souzoh-engineer-communication/
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hellip |
2022-02-22 11:00:32 |
海外TECH |
MakeUseOf |
How to Reduce the Size of a JPEG: 5 Different Ways |
https://www.makeuseof.com/how-to-reduce-jpeg-file-size/
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different |
2022-02-22 10:19:23 |
海外TECH |
DEV Community |
How to Write custom Property Wrappers with the help of the SwiftUI? |
https://dev.to/djackson/how-to-write-custom-property-wrappers-with-the-help-of-the-swiftui-2782
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How to Write custom Property Wrappers with the help of the SwiftUI Have you any idea how you can wrap your head around Swift s property wrappers However I am digging more about the Swift UI and its related work And found one challenge which is passing dependencies from SwiftUI s environment into a custom property wrapper During the research I learned that the DynamicProperty protocol is the one that confirms your property wrappers too When your property wrapper complies with the DynamicProperty protocol it effectively becomes a component of your SwiftUI view Therefore it implies that your SwiftUI view will ask your property wrapper to update itself anytime it is about to evaluate your view s body and your property wrapper will extract data from your SwiftUI environment So to trigger the updates in your views you can use the StateObject properties in your property wrapper Even the iOS developers make changes in the property wrapper during the development So before going deep into the topic let us first discuss what dynamicProperty is Understanding the fundamentals of DynamicPropertyIt is as simple as conforming a property wrapper to the DynamicProperty protocol to define a dynamic property Even this protocol s only requirement is to implement an update method that your view calls anytime it is about to evaluate its body The following is an example of how to define a property wrapper proprtyWrapperStruct MyPropertyWrapper DynamicProperty Var Wrappedvalue StringFunc update called whenever the view will evaluate its body Of course this example is not helpful on its own In a moment I will show you a more custom property wrapper Let us take a moment to review what we have defined so far We have defined a property wrapper that is quite basic Further this wrapper s wrapped value is a string which implies that it is used in our SwiftUI view as a string However in this post I have defined the property wrapper as a structure not as a class Perhaps it is allowed to define DynamicProperrtty wrapper as a class too and it works to some extent only If I talk about my experience it delivers very inconsistent results that might not even work So not well assured why Swift UI breaks property wrappers that are represented as classes SwiftUI has an update method that is called whenever the body is about to evaluate You can use this function to update the state that resides outside of your property wrapper Unless you are doing a lot of more intricate work in your property wrapper you probably do not need to implement this function at all Using your dynamic property to trigger view updatesOn their own dynamic properties can t inform a SwiftUI view to update We may however utilize State ObservedObject StateObject and other SwiftUI property wrappers to trigger view updates from within a custom property wrapper using State ObservedObject StateObject and other SwiftUI property wrappers It will look like this proprtyWrapperStruct Custom Property DynamicProperty State private var value Var Wrappedvalue Int Get Return value Nonmutating set Value newValue An Int value gets wrapped in this property wrapper The State property value is changed whenever this value receives a new value which causes a view update The following is an example of how to use this property wrapper in a view Struct ContentView View CustomProperty var customProperty Var body some View Text “Count customProperty Button “Increment cutomProperty When a button is clicked the value of customProperty gets an update in the SwiftUI view So this does not trigger reevaluation of the body on its own Although the value that represents our wrapped item is marked with State which is our view updates What is best about this is that our view will update whenever the value changes for whatever reason Although a property wrapper like this isn t practical we can use it to create some pretty cool abstractions around various types of data access For example create a UserDefaults abstraction that provides a key path based version of AppStorage class SettingKeys ObservableObject AppStorage onboardingCompleted var onboardingCompleted false AppStorage promptedForProVersion var promptedForProVersion false propertyWrapperstruct Setting lt T gt DynamicProperty StateObject private var keys SettingKeys private let key ReferenceWritableKeyPath‹SettingKeys T gt var wrappedValue T get keys keyPath key nonmutating set keys keyPath key newValue init key ReferenceWritableKeyPath‹SettingKeys T gt Self key key When you use this property it will look like this struct ContentView View Setting onboardingCompleted var didonboardvar body some View Text Onboarding completed didOnboard Yes No Button Complete onboarding didonboard true Any place in the app that uses Setting onboardingCompleted var didOnboard will automatically update when the value for onboarding completed in user defaults updated regardless of where how this happened So it is the same as how AppStorage works In fact my custom property wrapper relies heavily on AppStorage under the hood My SettingsKeys object has all of the individual keys in UserDefaults that I want to write to And the AppStorage property wrapper provides for easy observation and lets me specify SettingsKeys as an ObservableObject without any problems I can easily read values from user defaults or create a new value by assigning them to the proper key path in SettingsKeys by creating a custom get and set on my Setting s wrappedValue Simple property wrappers like this are helpful when you want to expedite some of your data access or if you want to give your property wrapper some semantic meaning and make it easier to discover Use SwiftUI environment values in the property wrapper It is possible to access the SwiftUI environment for the view that your property wrapper is used in in addition to triggering view updates using some of SwiftUI s property wrappers However it is especially beneficial if your property wrapper is more complicated and relies on things like a managed object context a networking object or other similar objects The SwiftUI environment can be accessed from within your property wrapper in the same manner as you do it in your views propertyWrapperstruct CustomFetcher lt T gt DynamicProperty Environment managedobjectContext var managedobjectContext … Alternatively you can use the environmentObject view modifier to read environment objects that are allotted through your view propertyWrapperstruct UsesEnvironmentObject lt T ObservableObject› DynamicProperty Environmentobject var envObject T … Moreover you can pass dependencies to your property wrappers through the environment in a more convenient way Let us imagine you are creating a property wrapper that retrieves data from the internet You may have a Networking object that can make network calls to get the data you need You could use the environment to inject this object into the property wrapper propertyWrapperstruct FeedLoader‹Feed FeedType› DynamicProperty Environment network var networkvar wrappedvalue Feed ObjectType I added the network environment key to my SwiftUI environment as a custom key We need the means to collect data from the network and assign it to anything in order to update our wrapped value now that we ve defined this property wrapper To do this you can hire iOS developer who will use the update method which allows us to update data that our property wrapper references if necessary Sum upWe discussed a few helpful property wrappers in today s article and observed how they are limited in terms of composability and testability And to address the complex use case of publishing a value and storing it in an abstract Storage we created a custom property wrapper |
2022-02-22 10:06:33 |
海外TECH |
DEV Community |
No more confusion — Splice vs Slice in Javascript |
https://dev.to/urstrulyvishwak/no-more-confusion-splice-vs-slice-in-javascript-1i2g
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No more confusion ーSplice vs Slice in JavascriptThey were built for different purposes but they look same in several scenarios I will clear confusion first instead of dragging it to the end of the article Tip Look at their meaningsSplice join or connect a rope or ropes by interweaving the strands at the ends Slice cut something especially food into slices Ok First I should thank Google for their meanings Thank you Google Hope you got cleared to some extent Tip Not a very intuitive tip but it is worth clearing your confusion a little more Splice ーtext length is greater than the slice Based on which remember the splice can take more params when compared to slice See the declaration here arr splice start deleteCount item item itemN arr slice start end Tip It s a technical tip here Splice mutates original array whereas slice won t Just remember if someone asks bread slice what would you do Don t need to remember every tip Just remember one that caught your attention ️Also if you have remembered in another way Please do comment Now tech stuff What do they really do Splice first It is an array method that works only on JS arrays It removes replaces and or adds new elements in the array mutates original array splice start deleteCount item item itemN start ーwhere to start changing the array deleteCountーno of elements to remove from the start and is optional item item and so on ーto add elements to the array after the start splice returns removed items in an array if none then returns an empty array ️I hope the above examples covered all scenarios If you find any more interesting scenarios please comment I am very much happy to update the article with your suggestion any time Slice nowSlices the array and returns a shallow copy Doesn t mutate alter the original arrayslice start end slice from start including to end excluding and accepts negative values Similar to slice in Array there is a slice in String as well Which also acts in the same manner but works on strings Thank you |
2022-02-22 10:02:30 |
海外TECH |
Engadget |
Elon Musk accuses the SEC of leaking information against him |
https://www.engadget.com/elon-musk-accuses-the-sec-of-leaking-information-to-retaliate-against-him-101031796.html?src=rss
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Elon Musk accuses the SEC of leaking information against himTesla CEO Elon Musk s lawyer has accused the Securities and Exchange Commission SEC or leaking information about a federal probe to retaliate against him CNBC has reported quot It has become clearer and clearer that the Commission is out to retaliate against my clients for exercising their First Amendment rightsーmost recently by criticizing the Commission on the public docket and by petitioning this Court for relief quot said Musk attorney Alex Spiro nbsp It s the latest shot fired by Musk in his ongoing dispute with the SEC that started in when he said that he had secured funding for a private buyout of Tesla at a share ーsomething many including the SEC interpreted as an attempt at a weed joke The SEC fined Tesla and Musk million each over that and forced Musk to step down as chairman for at least three years Tesla also had to implement a system for monitoring Musk s statements about the company on Twitter and other media nbsp Musk has been chafing against those rules lately however Earlier this month he accused the SEC of conducting a quot harassment campaign quot and quot stifling quot has First Amendment free speech rights The SEC responded earlier this week saying its frequent check ins with Tesla were effectively required by the court overseeing the settlement It also rebutted Musk s other complaint saying that it was making progress disbursing the million fine to shareholders as it had promised nbsp Musk s lawyers alleged that at least one SEC member had leaked quot certain information regarding its investigation quot but it didn t say who or which information Tesla revealed in its Q earnings report that the SEC subpoenaed the company and Musk seeking information on how they re complying with the settlement nbsp Musk previously ran afoul of the settlement a year later after tweeting information about Tesla vehicle production that wasn t approved by the company s quot disclosure counsel quot His lawyers accused the SEC of violating his free speech rights then too Musk and Tesla eventually agreed to a revised settlement that required him to get approval in advance for any tweets or other communication from an quot experienced securities lawyer quot nbsp nbsp |
2022-02-22 10:10:31 |
金融 |
金融庁ホームページ |
入札公告等を更新しました。 |
https://www.fsa.go.jp/choutatu/choutatu_j/nyusatu_menu.html
|
公告 |
2022-02-22 11:00:00 |
ニュース |
BBC News - Home |
Boris Johnson promises first set of UK sanctions against Russia |
https://www.bbc.co.uk/news/uk-politics-60476137?at_medium=RSS&at_campaign=KARANGA
|
ukraine |
2022-02-22 10:39:19 |
ニュース |
BBC News - Home |
Queen cancels virtual engagements as she recovers |
https://www.bbc.co.uk/news/uk-60477065?at_medium=RSS&at_campaign=KARANGA
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buckingham |
2022-02-22 10:42:31 |
ニュース |
BBC News - Home |
Oti Mabuse to leave Strictly Come Dancing after seven years |
https://www.bbc.co.uk/news/entertainment-arts-60476377?at_medium=RSS&at_campaign=KARANGA
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dancing |
2022-02-22 10:42:33 |
ニュース |
BBC News - Home |
Covid: Sajid Javid defends timing of end to Covid rules and free tests |
https://www.bbc.co.uk/news/uk-60474996?at_medium=RSS&at_campaign=KARANGA
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health |
2022-02-22 10:01:02 |
ニュース |
BBC News - Home |
UK storms: Flooding and more rain may hamper recovery efforts |
https://www.bbc.co.uk/news/uk-60476704?at_medium=RSS&at_campaign=KARANGA
|
clean |
2022-02-22 10:36:09 |
ニュース |
BBC News - Home |
River Severn Flooding: Homes and businesses evacuated |
https://www.bbc.co.uk/news/uk-england-shropshire-60475077?at_medium=RSS&at_campaign=KARANGA
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shropshire |
2022-02-22 10:08:49 |
ニュース |
BBC News - Home |
Ukraine: Where are Russia's troops? |
https://www.bbc.co.uk/news/world-europe-60158694?at_medium=RSS&at_campaign=KARANGA
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ukraine |
2022-02-22 10:54:02 |
北海道 |
北海道新聞 |
北京、進む“衣替え”期待感も 冬季パラ開幕まで10日 |
https://www.hokkaido-np.co.jp/article/648788/
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開幕 |
2022-02-22 19:21:00 |
北海道 |
北海道新聞 |
全道PTA広報紙コンクール 大賞に旭川青雲小など |
https://www.hokkaido-np.co.jp/article/648782/
|
北海道新聞 |
2022-02-22 19:12:00 |
北海道 |
北海道新聞 |
欧州原油、100ドル目前に ウクライナ情勢の深刻化で |
https://www.hokkaido-np.co.jp/article/648786/
|
北海ブレント |
2022-02-22 19:15:00 |
北海道 |
北海道新聞 |
自民の片山氏「退会伝達」と反論 二階派離脱巡り泥仕合 |
https://www.hokkaido-np.co.jp/article/648785/
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地方創生 |
2022-02-22 19:15:00 |
北海道 |
北海道新聞 |
国立大付属校教員、残業代未払い 24法人15億円、是正勧告も |
https://www.hokkaido-np.co.jp/article/648781/
|
労務管理 |
2022-02-22 19:06:00 |
北海道 |
北海道新聞 |
地価上昇55地点に増加、国交省 商業地、コロナ禍から回復の兆し |
https://www.hokkaido-np.co.jp/article/648780/
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回復の兆し |
2022-02-22 19:01:00 |
北海道 |
北海道新聞 |
トンガ、通信が1カ月ぶりに復旧 海底ケーブルを修復 |
https://www.hokkaido-np.co.jp/article/648779/
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南太平洋 |
2022-02-22 19:01:00 |
IT |
週刊アスキー |
PC『ガンダムジオラマフロント』でリプレイド作戦「希望の未来へレディ・ゴーッ!」期間限定難易度「MASTER」を解放! |
https://weekly.ascii.jp/elem/000/004/084/4084254/
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master |
2022-02-22 19:55:00 |
IT |
週刊アスキー |
「コクーンシティ」、2022年「春」のリニューアルで全9店舗が新たにオープン |
https://weekly.ascii.jp/elem/000/004/084/4084249/
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新た |
2022-02-22 19:30:00 |
マーケティング |
AdverTimes |
ワークマン、5年で200億円へ Web注文店頭受け取りを拡大 |
https://www.advertimes.com/20220222/article377547/
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受け取り |
2022-02-22 10:54:32 |
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