投稿時間:2021-11-06 13:14:16 RSSフィード2021-11-06 13:00 分まとめ(16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
TECH	Engadget Japanese	インテルMacがmacOS更新で文鎮化バグ、アップルが「T2チップが原因」として修正を発表	https://japanese.engadget.com/some-macs-t2chip-bricked-fix-030525839.html	macos	2021-11-06 03:05:25
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] コロナ禍の歌舞伎町に息づく「深夜薬局」　休むことなく営業を続けた理由とは？	https://www.itmedia.co.jp/business/articles/2111/06/news019.html	itmedia	2021-11-06 12:02:00
AWS	AWS DevOps Blog	Deep learning image vector embeddings at scale using AWS Batch and CDK	https://aws.amazon.com/blogs/devops/deep-learning-image-vector-embeddings-at-scale-using-aws-batch-and-cdk/	Deep learning image vector embeddings at scale using AWS Batch and CDKApplying various transformations to images at scale is an easily parallelized and scaled task As a Computer Vision research team at Amazon we occasionally find that the amount of image data we are dealing with can t be effectively computed on a single machine but also isn t large enough to justify running a large and potentially …	2021-11-06 03:20:44
python	Pythonタグが付けられた新着投稿 - Qiita	水文水質データベースの1h降水量データをスクレイピングする。	https://qiita.com/turkhk_12/items/b0ab4cb69e7d9af8cf53	気象庁アメダスから例えば年分の降水量データをダウンロードしようとするとそれはそれはまあ大変な作業になるわけです。	2021-11-06 12:58:39
python	Pythonタグが付けられた新着投稿 - Qiita	DynamoDBをモック化する	https://qiita.com/k2-keep/items/6b1a3b011c04a8b7d974	DynamoDBをモック化する背景ローカル環境でLambdaからDynamoDBへの処理をテストをしたかったのでmotoを使ってDynamoDBをモックした。	2021-11-06 12:39:21
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	データ量の多い重複値に連番付与するやり方について（処理時間がかなり要しており苦戦しています）	https://teratail.com/questions/368002?rss=all	データ量の多い重複値に連番付与するやり方について処理時間がかなり要しており苦戦していますどなたか有識者の方ご教示頂けないでしょうか。	2021-11-06 12:49:37
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Goのruntime error: invalid memory address or nil pointer dereference	https://teratail.com/questions/368001?rss=all	Goのruntimeerrorinvalidmemoryaddressornilpointerdereferenceruntimenbsperrornbspinvalidnbspmemorynbspaddressnbspornbspnilnbsppointernbspdereference自作で簡単なAPIサーバーを作っているのですがサーバーにリクエストを送るとTerminalに上のようなエラーが出てしまいます。	2021-11-06 12:19:24
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	fixturesファイルの内容書き換え	https://teratail.com/questions/368000?rss=all	fixturesファイルの内容書き換え前提・実現したいことfixturesファイルにある要素の背景の色を変えたいが、クラス名の変更が反映されない。	2021-11-06 12:04:59
AWS	AWSタグが付けられた新着投稿 - Qiita	VMworld 2021アップデートまとめ (VMware Cloud on AWS編)	https://qiita.com/sanjushi/items/9805631d3cc3c1f47e58	本文は英語ですがこちらVMware社の公式ブログにもVMwareCloudonAWSについて年月時点の最新アップデートがまとまっています。	2021-11-06 12:27:15
海外TECH	DEV Community	What's new in C# 10.0	https://dev.to/glsolaria/whats-new-in-c-100-4l3n	What x s new in C C was first released around years ago and recently the pace of releases has increased with new releases being unveiled every year for the past years C is likely to be launched with NET at NET Conf coming up on November with the conference concluding on November So I thought I would summarise some of the new features introduced in C But first a bit of history Language EvolutionInitially C was released every few years Each release typically included a signature feature that required significant thought in how to use it For example C introduced Generics C introduced LINQ C introduced async await for asynchronous programming With the latest releases now happening every year they are focusing more on code simplification with smaller updates Big new features however are now likely to evolve over a few releases For example pattern matching continues to evolve now spanning releases Records is another example of this evolutionary approach The C language design also moved from a closed secret development model to an open development model around Now you can even contribute to the C language design forum hosted on GitHub to help further evolve the language Design meetings and road maps are published on the site publicly to enable open discussions and feedback New FeaturesI have chosen not to describe all proposed features of C because this would be a very long post it s very long already If you are interested in the full list of proposals see the C Language Version History File scoped namespace declarations which is a dispenses with the wasteful indentation and braces that comes with namespace declarations thereby removing one level of indentation and braces for all C files Global using directives which allow you to define using directives centrally so that they do not need to be defined in every file Constant interpolated strings which allows interpolated strings to be able to be declared constant where possible Extended property patterns which simplifies the use of nested properties in pattern matching statements Lambda improvements which include the ability for attributes to be defined on lambdas ability to use var when defining lambdas and the ability to specify the return type of a lambda Caller argument expression which adds a new attribute to help identify expression information at compile time Record structs which evolves the C record class reference type to add a new record struct value type to manipulate small records efficiently Incremental generators which takes source code generators to the next level allowing for generation of not just source code It also allows for improved generation performance Improved definite assignment analysis which fixes a few obscure cases where the compiler would complain that a variable had not been initialised File scoped namespace declarationsInstead of namespace WhatsNew public class Foo you can dispense with the top level braces by declaring the namespace using the following namespace WhatsNew public class Foo Global using directivesThe using directive imports all types from the specified namespace Adding the keyword global to the directive in any code file will import those namespace types and make the types available to all code in the project global using System Implicit global using directives are also created by the compiler depending on the NET project SDK type The implicit usings for of the major project types are shown below Project SDK Type Implicit Global Usings Microsoft NET Sdk System System System IO System Net Linq System Net Http System Threading System Threading Tasks Microsoft NET Sdk Web System System Net Http Json Microsoft AspNetCore Builder Microsoft AspNetCore Hosting Microsoft AspNetCore Http Microsoft AspNetCore Routing Microsoft Extensions Configuration Microsoft Extensions DependencyInjection Microsoft Extensions Hosting Microsoft Extensions LoggingSo together with the C Top Level Statements feature the complete code file for a Program cs can look like this Console WriteLine Hello World Constant interpolated stringsThe following use of the constant keyword is now permitted for interpolated strings where previously a compile error would be generated const string s Hello world const string s s C Extended property patternsConsider the following var aa new A Property foo var bb new B Property aa public class A public string Property get set public class B public A Property get set To use pattern matching on an instance of B you previously had to bool isFoo bb switch Property Property foo gt true gt false but you can do this more simply now by bool now bb switch Property Property foo gt true gt false Lambda improvementsAutomatic inference of the type of a lambda is a nice simplification introduced in C Func lt string bool gt isFooInC ss gt ss foo C var isFooIn string ss gt ss foo C Lambdas can also have attributes defined on them so instead of HttpGet Foo GetFoo gt new Id Name Name app MapAction Func lt Foo gt GetFoo you can now write app MapAction HttpGet gt new Foo Id Name Name The return type of a lambda can also now be explicitly specified var foo gt foo is type Func lt Int gt var bar gt long bar is type Func lt Int gt There are a few other improvements including direct lambda invocation and enhanced overload resolution that can be reviewed in the proposal for lambda improvements Caller Argument ExpressionYou can now get an expression as a string by Writes true false is False to the console Print true false static void Print bool result CallerArgumentExpression result string expr default Console WriteLine expr is result Record StructsRecord classes introduced in C are useful because it makes it easier to create immutable objects that are thread safe by using the init keyword instead of the set keyword Record classes are also helpful because the compiler creates some nice value like built in methods like equality operators a numeric hash code based on the property values so you can use the record in a hash based collections for fast look ups and a way to convert the values of the record properties to a string Record structs also provide those compiler generated record built ins unlike plain structs which only generate getters and setters Record classes however are reference types so instances of the type are allocated within the heap Record structs on the other hand are value types so they are allocated on the stack This means record structs can be manipulated efficiently So now we can create an immutable record struct in one nice line of code public readonly record struct Foo string Fiz string Faz and use it var foo new Foo Fiz Fizzy Faz Fazzy var foo new Foo Fiz Fizzy Faz Fazzy var foo foo with Faz Zazzy Console WriteLine foo Foo Fiz Fizzy Faz Fazzy Console WriteLine foo Foo Fiz Fizzy Faz Fazzy Console WriteLine foo Foo Fiz Fizzy Faz Zazzy Console WriteLine foo GetHashCode Console WriteLine foo GetHashCode Console WriteLine foo GetHashCode Console WriteLine foo foo TrueConsole WriteLine foo foo False Incremental generatorsSource generators were introduced in NET which lets C developers inspect user code and generate new C source files that can be added to a compilation This is done via a new kind of component that we re calling a Source Generator Introducing C Source Generators Incremental generators are a new feature that allows for the generation of source code artefacts and embedded files Pipelines can be implemented that use cached data to perform further transformations thereby improving performance I admit I don t fully understand how to use this feature and I will be looking forward to NET Conf for some simple explanations and examples Improved definite assignment analysisDefinite assignment analysis is the static analysis done by the compiler to ensure that variables are assigned before they are used C and C don t have this feature although Java does There were a few interesting cases that previously gave an error and are now okay with C The cases are obscure but if you are really interested you can delve into the cases ConclusionSo there have been some nice simplifications proposed for C They are continuing to evolve features such as pattern matching and records in response to developer feedback which I think is good to see C might even survive another years ReferencesChat with Mads Torgersen who has worked on the language for over yearsFeatures added in C language versions	2021-11-06 03:35:42
海外TECH	DEV Community	40+ Projects You Can Do to Become a Front-End Master [Beginners - Advance]	https://dev.to/jasonsz/40-projects-you-can-do-to-become-a-front-end-master-beginners-advance-1m7n	Projects You Can Do to Become a Front End Master Beginners Advance If you are a developer or just getting started with the process then you must already be aware of how important the role of developing live projects are It will not only improve your coding skills but will also help you develop a passion for it You can start by taking up online tutorials to learn a skill or two but it must lead to starting to build the programs eventually Read More   Projects You Can Do to Become a Front End Master Beginners Advance	2021-11-06 03:26:30
北海道	北海道新聞	スー・チー氏の日本刀を修復　岡山の研師ら１年かけ	https://www.hokkaido-np.co.jp/article/608676/	日本財団	2021-11-06 12:18:00
北海道	北海道新聞	学童保育で元校長が暴言、愛知　市指導でも改善せず	https://www.hokkaido-np.co.jp/article/608675/	学童保育	2021-11-06 12:16:00
北海道	北海道新聞	日本海でズワイガニ漁解禁　冬の味覚、兵庫・豊岡で初水揚げ	https://www.hokkaido-np.co.jp/article/608667/	冬の味覚	2021-11-06 12:13:00
北海道	北海道新聞	比例代表の議員に当選証書　衆院選で中央選管	https://www.hokkaido-np.co.jp/article/608666/	中央選挙管理会	2021-11-06 12:01:00
北海道	北海道新聞	秋田の新高級米「サキホコレ」　銀座の百貨店でＰＲイベント	https://www.hokkaido-np.co.jp/article/608665/	高級	2021-11-06 12:01:00