投稿時間:2023-08-02 18:19:00 RSSフィード2023-08-02 18:00 分まとめ(25件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
IT	気になる、記になる…	X (Twitter)、｢X Blue｣加入を示す青いチェックマークを非表示することが可能に	https://taisy0.com/2023/08/02/174875.html	twitter	2023-08-02 08:43:00
IT	気になる、記になる…	｢iPhone 15｣シリーズの発売は10月になる可能性が浮上	https://taisy0.com/2023/08/02/174872.html	apple	2023-08-02 08:19:34
IT	気になる、記になる…	Microsoft、｢Xbox ワイヤレス コントローラー (ストームクラウド ベイパー) スペシャル エディション｣を発表 ｰ 8月22日発売で予約受付中	https://taisy0.com/2023/08/02/174869.html	microsoft	2023-08-02 08:01:51
ROBOT	ロボスタ	世界累計10万台導入、トラクターや田植え機に装置する自動操舵システム　農作業の省力化を試せるキャンペーン　セキド	https://robotstart.info/2023/08/02/campaign-fjd-autodrive-system.html		2023-08-02 08:28:08
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 「MAZDA CX-60」値上げ　全16グレードが8月から新価格に	https://www.itmedia.co.jp/business/articles/2308/02/news138.html	itmedia	2023-08-02 17:14:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 新型ランクル、豊田前社長が求めた「原点回帰」　開発陣がたどり着いた答え	https://www.itmedia.co.jp/business/articles/2308/02/news144.html	原点回帰	2023-08-02 17:04:00
AWS	AWS Japan Blog	Amazon QuickSight の Generative BI 機能を発表	https://aws.amazon.com/jp/blogs/news/announcing-generative-bi-capabilities-in-amazon-quicksight/	amazonquicksight	2023-08-02 08:56:31
AWS	AWS Japan Blog	生成系 AI アプリケーションでベクトルデータストアが果たす役割とは	https://aws.amazon.com/jp/blogs/news/the-role-of-vector-datastores-in-generative-ai-applications/	astoresingenerativeaiap	2023-08-02 08:22:02
AWS	AWSタグが付けられた新着投稿 - Qiita	AMIリストア後にホスト名がip-xxx-xxx-xxx-xxになってしまう	https://qiita.com/keichang/items/a6bcded6729152ba3b85	cloudinit	2023-08-02 17:36:49
技術ブログ	Developers.IO	[アップデート] Amazon WorkSpacesでMicrosoft 365 Apps for enterpriseアプリケーションのBYOLが可能になりました	https://dev.classmethod.jp/articles/amazon-workspaces-supports-microsoft-365-apps-for-enterprise-byol/	amazonworkspaces	2023-08-02 08:31:37
技術ブログ	Developers.IO	ゲームソリューション部にジョインしました新屋です。	https://dev.classmethod.jp/articles/20230801-shinya-join/	福岡県北九州市	2023-08-02 08:15:12
海外TECH	DEV Community	Introducing the auto-signal pattern	https://dev.to/mfp22/introducing-the-auto-signal-pattern-1a5h	Introducing the auto signal patternYouTubeSignals are perfect for synchronous reactivity and observables are perfect for asynchronous reactivity They are complimentary but also at odds with each other In this article I will share a neat trick to get them to play well with each other The ProblemtoSignal source immediately subscribes to the source observable and stays subscribed until it is destroyed This is necessary because signals are expected to always contain a current value that can be read from at any time However it blocks the ability of RxJS streams to automatically clean upreset and re fetchcancel requestsdefer work and requests Automatic cleanupListening to data sources can be expensive Firebase has different price levels depending on the number of simultaneous connections and other data sources can cause memory leaks if not cleaned up Apps that don t use RxJS effectively need manual cleanup code which can easily be neglected in some scenarios If you need an event source on only some pages observables can automatically clean up the connections or listeners when the user goes to other pages and all subscribers have unsubscribed But if you call toSignal in a shared service the source observable will never clean up resources Reset and re fetchWhen you leave a page and come back later seeing stale data there can be deceptive or even jarring Apps that don t use RxJS effectively will have extra code that runs inside an OnDestroy to manually clear stale data They also have to manually trigger a re fetch Observables can automatically reset state when the user goes to other pages and all subscribers have unsubscribed and automatically re fetch data when the user returns to a page that needs it But if you call toSignal in a shared service the source observable will never reset its state or re fetch data Automatic cancelWhen you leave a page it becomes pointless and wasteful to continue fetching unnecessary data or creating expensive data sources Without RxJS it is up to developers to notice when certain data sources are large enough or typical user connection speed is slow enough that it noticeably deteriorates the user experience Observables can automatically cancel requests when the user goes to other pages and all subscribers have unsubscribed But if you call toSignal in a shared service the source observable will continue on with unnecessary requests and download unnecessary data Automatic deferIt is pointless and wasteful to fetch data or create expensive connections before they are necessary Observables can represent data sources but wait for subscribers instead of prematurely consuming them But if you call toSignal in a shared service the source observable will consume the data source it represents as soon as that service is created Don t share signals If you want to share synchronously derived state you either can t use signals or you have to sacrifice automatic cleanup resetting refetching cancellation and deferment The more complex your application is the more painful this tradeoff will be This is why despite the huge benefits of signals I have advised to never use signals in a shared service It sucks to not have efficient derived state but usually it sucks more to have lower code quality because RxJS can t automatically manage data dependencies Note I m really not asking for anything excessively luxurious here These benefits are commonly achieved in React with hooks like useQuery I believe Angular can have nice things too if people want them Real world exampleOne company I worked for had routes using realtime data but the users spent the majority of the time away from those routes so it was important to close unused connections The most complex feature required this series of asynchronous data dependencies Get Firebase token from serverCreate Firebase connectionListen to message data from FirebaseUse message data to fetch more details from serverRxJS automatically closed unused Firebase connections for us We never worried about orchestrating when sibling routes might need the Firebase connection or not We had a service providedIn root and the Firebase connections automatically closed when they were not needed by any component Realtime data is awesome for users and RxJS makes it easy for developers Once you get used to automatic cleanup resetting refetching cancellation and deferment you will never want to code any other way even in simple apps It is just too convenient to not have to use imperative duct tape everywhere The SolutionRather than converting an observable to a signal with toSignal we can keep the observables and signals separate but build a connection between them that lasts exactly as long as we need it Let s say we have an observable of asynchronous data interval interval And we have a signal with synchronously derived state count signal double computed gt this count What we can do is make a function that creates a connection between interval and count and we can represent this connection as an observable When we subscribe to this observable it will subscribe to interval When interval emits it will call count set value with the value from the interval It should do this only once no matter how many subscribers it has so we ll add a share at the end And we want it to reset to the initial state after all subscribers are gone so we ll use a finalize for that Also we don t want self completing observables to trigger this behavior so we have to merge interval with NEVER to prevent the finalize from running too soon Now this connection observable will only complete once all subscribers unsubscribe Here s the implementation of the function that can create this connection observable import WritableSignal from angular core import Observable tap share finalize merge NEVER from rxjs export function connectSource lt State gt state WritableSignal lt State gt source Observable lt State gt const initialState state return merge source NEVER pipe tap s gt state set s finalize gt state set initialState share And here s how to use it Injectable providedIn root export class CountService count signal double computed gt this count interval interval connection connectSource this count this interval Now whenever we want to use these count or double signals in a component we need to make sure that connection has a subscription We can create a function that does this automatically by injecting a service looking for a connection property and subscribing to it until OnDestroy gets called import DestroyRef inject ProviderToken from angular core import Observable from rxjs export function injectAutoSignal lt T Service extends connection Observable lt T gt gt token ProviderToken lt Service gt const service inject token const sub service connection subscribe inject DestroyRef onDestroy gt sub unsubscribe return service And here s how to use that function Component template lt h gt Count is countService count lt h gt lt h gt Double is countService double lt h gt export class CountComponent countService injectAutoSignal CountService And we get almost everything we want Derived state with signals automatic cleanup resetting refetching and cancellation The one missing feature is automatic deferment Our source observable is not completely deferred because the component subscribes as soon as it is created and injects the service rather than waiting for an actual subscription in the template However this is good enough for the vast majority of use cases If we want to use our derived state in another service we just have to make sure we copy the connection observable to the new service so components can subscribe through the new service Injectable providedIn root export class AnotherService countService inject CountService message computed gt Count is connection this countService connection Definitely don t inject CountService using injectAutoSignal because that would immediately subscribe to connection which would behave just like toSignal Just use inject inside services You can also combine connections using merge Injectable providedIn root export class CountService extends CoundService Injectable providedIn root export class CountService extends CoundService Injectable providedIn root export class CobimedService countService inject CountService countService inject CountService combinedCount computed gt this countService count this countService count connection merge this countService connection this countService connection ConclusionIt looks like we have everything we want We get the best of both worlds Efficient synchronous reactivity with signals and on demand asynchronous reactivity from RxJS Hopefully this helps the Angular community write cleaner and safer code Please share this article with other Angular developers	2023-08-02 08:21:51
医療系	医療介護 CBnews	インスタでの採用広報が大当たり、定着率もアップ-【病院広報アワード】各媒体の好循環図る	https://www.cbnews.jp/news/entry/20230802163254	医療法人	2023-08-02 18:00:00
医療系	医療介護 CBnews	診療報酬コロナ特例と病床確保料の継続要望、日医-厚労相に、釜萢氏「医療の提供滞らないように」	https://www.cbnews.jp/news/entry/20230802171726	加藤勝信	2023-08-02 17:34:00
医療系	医療介護 CBnews	後発薬の体制加算「段階廃止を」-中医協で支払側委員が要望	https://www.cbnews.jp/news/entry/20230802170405	中央社会保険医療協議会	2023-08-02 17:16:00
金融	ニッセイ基礎研究所	ユーロ圏失業率（2023年6月）－失業率は6.4％の低水準で横ばい	https://www.nli-research.co.jp/topics_detail1/id=75697?site=nli	nbsp【ユーロ圏失業率か国、年月、季節調整値】・失業率は、市場予想を下回り、前月から横ばいだった図表・失業者は万人となり、前月万人から万人減少したnbspbloomberg集計の中央値。	2023-08-02 17:37:22
ニュース	BBC News - Home	Bibby Stockholm: Asylum barge not a death trap, minister Grant Shapps says	https://www.bbc.co.uk/news/uk-england-dorset-66381331?at_medium=RSS&at_campaign=KARANGA	access	2023-08-02 08:51:09
ニュース	BBC News - Home	Zendaya pays tribute to Euphoria co-star Angus Cloud	https://www.bbc.co.uk/news/entertainment-arts-66375353?at_medium=RSS&at_campaign=KARANGA	angus	2023-08-02 08:00:48
ニュース	BBC News - Home	Ukraine war: Drones target Odesa grain stores near Romania border	https://www.bbc.co.uk/news/world-europe-66379561?at_medium=RSS&at_campaign=KARANGA	izmail	2023-08-02 08:21:55
ビジネス	ダイヤモンド・オンライン - 新着記事	こんな大学は要注意！将来「ボーダーフリー」になるかもしれない大学の5つの特徴 - ネット発！教育ニュース最前線	https://diamond.jp/articles/-/327048	こんな大学は要注意将来「ボーダーフリー」になるかもしれない大学のつの特徴ネット発教育ニュース最前線偏差値未満で不合格者が極端に少なく、予備校が合格判定不能としている「ボーダーフリー大学」。	2023-08-02 17:30:00
ビジネス	東洋経済オンライン	｢3時間睡眠で元気｣憧れる人へ教えたい残念な真実 さまざまな研究から見た｢睡眠時間と健康｣の関係 | 健康 | 東洋経済オンライン	https://toyokeizai.net/articles/-/691485?utm_source=rss&utm_medium=http&utm_campaign=link_back	健康寿命	2023-08-02 17:30:00
マーケティング	MarkeZine	ロイヤリティ マーケティングとプレイシンクが業務提携　Ponta会員基盤を活用したWeb3事業推進へ	http://markezine.jp/article/detail/42959	ponta	2023-08-02 17:30:00
IT	週刊アスキー	夏アニメは呪術廻戦が頭1つ抜けた感あり！ 特撮ワードも最多ランクイン	https://weekly.ascii.jp/elem/000/004/147/4147465/	netflix	2023-08-02 17:30:00
IT	週刊アスキー	【マック史上初】ベーコンポテトパイの新味 “裏ワザ”で食べるとさらにウマイ	https://weekly.ascii.jp/elem/000/004/148/4148080/	販売開始	2023-08-02 17:30:00
ニュース	THE BRIDGE	プロ産業医による健康経営クラウド「Dr.CHECK」を提供するリバランス〜KDDI ∞ Labo7月の全体会から	https://thebridge.jp/2023/08/2023-re-balance-mugenlabo-magazine	プロ産業医による健康経営クラウド「DrCHECK」を提供するリバランスKDDI∞Labo月の全体会から本稿はKDDIが運営するサイト「MUGENLABOMagazine」に掲載された記事からの転載年月日、KDDI∞Laboの月次全体会において、スタートアップ社が大企業に向けてピッチを行いました。	2023-08-02 08:00:49