投稿時間:2022-08-20 10:19:38 RSSフィード2022-08-20 10:00 分まとめ(23件)

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IT	気になる、記になる…	Apple、｢iPhone 12やiPhone 12 Proの音の問題に対する修理サービスプログラム｣を1年延長	https://taisy0.com/2022/08/20/160316.html	apple	2022-08-20 00:17:37
IT	ITmedia 総合記事一覧	[ITmedia News] 1と0は遠くて、1と7は近い――AIは手書きの数字をどう認識している？　“AIの頭の中”にある多次元データをのぞこう！	https://www.itmedia.co.jp/news/articles/2208/20/news028.html	itmedia	2022-08-20 09:30:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] ツーリングに行きたい都道府県　2位「長野県」、1位は？	https://www.itmedia.co.jp/business/articles/2208/20/news056.html	都道府県	2022-08-20 09:22:00
python	Pythonタグが付けられた新着投稿 - Qiita	データクレンジングを行ってみよう！価格変更偏	https://qiita.com/yusaku_getfuture/items/3be6557185a233c983ca	変更	2022-08-20 09:36:15
js	JavaScriptタグが付けられた新着投稿 - Qiita	プログラマーが、脳の記憶力低下にがっかりしている	https://qiita.com/tecoyan/items/515512e0ad3c81056f67	退役	2022-08-20 09:55:07
技術ブログ	Developers.IO	AWS Site to Site VPN のトンネルアクティビティログを CloudWatch Logs へ送信出来るようになりました	https://dev.classmethod.jp/articles/aws-site-to-site-vpn-activity-log-cloudwatch-logs/	amazoncloudwatchlogs	2022-08-20 00:52:49
海外TECH	DEV Community	Understand Fields and Properties in Kotlin	https://dev.to/vtsen/understand-fields-and-properties-in-kotlin-2dlp	Understand Fields and Properties in KotlinHow Kotlin implicitly implements field getter and setter function for you when you declare a property This article was originally published at vtsen hashnode dev on Jul Properties and fields terminologies in Kotlin sometimes is a bit confusing because technically Kotlin doesn t have Fields You can t declare a field Everything is Properties However to avoid confusion I prefer to define Fields and Properties separately based on the following Fields are private member variables of a class Memory is allocated Properties are public or protected getter or setter functions which allow you to access to the private fields I like to define like this because it helps my understanding and it also makes things a lot easier to explain Implicit Field Implicit Getter SetterLet s look at this example name is a property class Person var name Vincent When you declare a property like this Kotlin implicitly creates field getter and setter functions for you In Java decompiled code it looks like this public final class Person NotNull private String name Vincent NotNull public final String getName return this name public final void setName NotNull String var Intrinsics checkNotNullParameter var lt set gt this name var As you can see private String name is the field member variable getName and setName are the property getter and setter functions also known as property accessors Implicit Field Explicit Getter SetterOf course you can also explicitly define the property getter and setter functions which also generates a very similar decompiled Java code class Person var name String Vincent get return field set value field value field is implicitly created here which is also called Backing Fields Providing property accessors i e get and set to the property is called Backing Properties Explicit Field Explicit Getter SetterYou can explicitly define Field too Basically everything is explicit now class Person private var name String Vincent var name String get return name set value name value Instead of implicit field name is the explicit field here Private Set or Backing Properties Now you want the property name to be read only outside the class So you can restrict the property setter using private set For example class Person var name String Vincent private set Or you can also use Backing Properties Remove the set and change the var to val class Person private var name String Vincent val name String get return name Both of the code generate the same decompile Java code as below Please note the setName function removed public final class Person NotNull private String name Vincent NotNull public final String getName return this name I personally prefer private set because it has less code Misuse of private setBut wait not so fast What if you convert the following backing propertyclass MainViewModel ViewModel private val state MutableState lt Int gt mutableStateOf null val state State lt Int gt state to private setclass MainViewModel ViewModel var state MutableState lt Int gt mutableStateOf null private set This is a very good example of misusing the private set What it really means is you can t assign a new variable to state outside the MainViewModel class The state variable itself is still mutable which means you can modify its value The backing property above exposes only the read only State changing it to private set defeats its original purpose So in this scenario you don t use the private set This applies to any mutable data ConclusionI think it is important to understand the fields and properties concepts here When you declare a property it doesn t allocate a new memory because it is merely a getter or setter function However if implicit field implementation is inferred like code examples above then yes it takes up the memory allocation Finally don t convert every backing property to private set You shouldn t do that especially your data is mutable See AlsoKotlin Tips and Tricks	2022-08-20 00:21:28
Apple	AppleInsider - Frontpage News	First season of 'See' available for free on Apple TV+ ahead of season 3 premiere	https://appleinsider.com/articles/22/08/20/first-season-of-see-available-for-free-on-apple-tv-ahead-of-season-3-premiere?utm_medium=rss	First season of x See x available for free on Apple TV ahead of season premiereAs Apple TV drama See gears up for its third and final season Apple will allow everyone to watch the first season for free for a limited time Announced by the series official Twitter account on Friday See will be available to watch for free until August See was one of the first Apple Originals that premiered alongside the launch of Apple TV in Read more	2022-08-20 00:32:10
Apple	AppleInsider - Frontpage News	Apple extends repair program for iPhone 12 models affected with 'no sound issue'	https://appleinsider.com/articles/22/08/20/apple-extends-repair-program-for-iphone-12-models-affected-with-no-sound-issue?utm_medium=rss	Apple extends repair program for iPhone models affected with x no sound issue x Apple has extended its repair program for iPhone models that experience earpiece sound issues for an additional year Credit Andrew O Hara AppleInsiderDevices covered in the repair program include iPhone and iPhone Pro models manufactured between October and April The program does not apply to the iPhone mini or the iPhone Pro Max Read more	2022-08-20 00:15:47
海外科学	BBC News - Science & Environment	UK drought: Why do the trees think it's autumn already?	https://www.bbc.co.uk/news/science-environment-62582186?at_medium=RSS&at_campaign=KARANGA	struggle	2022-08-20 00:07:31
海外ニュース	Japan Times latest articles	Islamic State fighter gets life over Syria deaths of Japanese and American hostages	https://www.japantimes.co.jp/news/2022/08/20/world/islamic-state-militant-life-sentence/	Islamic State fighter gets life over Syria deaths of Japanese and American hostagesEl Shafee Elsheikh was convicted in April for his involvement in the plot that led to the deaths of several U S nationals and Japanese hostages	2022-08-20 09:29:28
海外ニュース	Japan Times latest articles	Putin to allow inspectors to visit Russian-occupied nuclear plant	https://www.japantimes.co.jp/news/2022/08/20/world/russia-ukraine-un-zaporizhzhia/	Putin to allow inspectors to visit Russian occupied nuclear plantThe French president s office said Moscow had reconsidered a demand that the International Atomic Energy Agency travel through Russia to the Zaporizhzhia nuclear site	2022-08-20 09:14:22
ニュース	BBC News - Home	UK drought: Why do the trees think it's autumn already?	https://www.bbc.co.uk/news/science-environment-62582186?at_medium=RSS&at_campaign=KARANGA	struggle	2022-08-20 00:07:31
ニュース	BBC News - Home	Train and Tube strikes: Salon owner says strikes make it feel like the pandemic	https://www.bbc.co.uk/news/uk-62602410?at_medium=RSS&at_campaign=KARANGA	business	2022-08-20 00:12:29
ニュース	BBC News - Home	GCSEs: How students missing exams in pandemic felt 'stressed and alone'	https://www.bbc.co.uk/news/uk-62593667?at_medium=RSS&at_campaign=KARANGA	level	2022-08-20 00:12:46
ニュース	BBC News - Home	Aretha Franklin Prom will explore 'the core of who she was'	https://www.bbc.co.uk/news/entertainment-arts-62565695?at_medium=RSS&at_campaign=KARANGA	buckley	2022-08-20 00:11:05
ニュース	BBC News - Home	Train and Tube strikes: What are the dates and where is affected?	https://www.bbc.co.uk/news/business-61634959?at_medium=RSS&at_campaign=KARANGA	train	2022-08-20 00:10:36
北海道	北海道新聞	抗原検査キット需要急増　ネット販売解禁へ　誤用防ぐ周知急務	https://www.hokkaido-np.co.jp/article/719840/	新型コロナウイルス	2022-08-20 09:12:32
北海道	北海道新聞	有人月面着陸の候補地発表　ＮＡＳＡ、２５年目標	https://www.hokkaido-np.co.jp/article/719868/	月面着陸	2022-08-20 09:19:57
北海道	北海道新聞	クマ、車のミラー揺する　羅臼の知床横断道	https://www.hokkaido-np.co.jp/article/719776/	根室管内	2022-08-20 09:30:23
北海道	北海道新聞	ソ連核ミサイル基地を公開　発射施設、地下司令室も	https://www.hokkaido-np.co.jp/article/719901/	大陸間弾道ミサイル	2022-08-20 09:19:00
ビジネス	プレジデントオンライン	｢少女は怯えながら暗闇の公衆トイレへ｣日本の女子高生が見たインド･スラム地域の悲しい現実【2022上半期BEST5】 - 輝く笑顔の裏にある壮絶な悩みごと	https://president.jp/articles/-/60633	公衆トイレ	2022-08-20 10:00:00
ビジネス	プレジデントオンライン	突然の子会社への左遷…不遇の7年半を耐えた｢キリンの半沢直樹｣の痛快すぎる"倍返し"の中身 - 報復ではなく"ヒット連発"でリベンジした天才マーケター	https://president.jp/articles/-/60523	一番搾り	2022-08-20 10:00:00