投稿時間:2021-07-21 09:35:57 RSSフィード2021-07-21 09:00 分まとめ(46件)

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IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 秋田県の「住みここちランキング2021」発表　3位に「大仙市」がランクイン　最も支持を得た自治体は？	https://www.itmedia.co.jp/business/articles/2107/21/news040.html	itmedia	2021-07-21 08:55:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 「マスクで顔が分からない」問題をあえて“アナログ”で解決　名古屋の印刷会社がアイデア名刺発売	https://www.itmedia.co.jp/business/articles/2107/21/news039.html	itmedia	2021-07-21 08:30:00
AWS	AWS Big Data Blog	Build a SQL-based ETL pipeline with Apache Spark on Amazon EKS	https://aws.amazon.com/blogs/big-data/build-a-sql-based-etl-pipeline-with-apache-spark-on-amazon-eks/	Build a SQL based ETL pipeline with Apache Spark on Amazon EKSToday the most successful and fastest growing companies are generally data driven organizations Taking advantage of data is pivotal to answering many pressing business problems however this can prove to be overwhelming and difficult to manage due to data s increasing diversity scale and complexity One of the most popular technologies that businesses use to overcome these …	2021-07-20 23:38:28
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	WordPressのカテゴリーアーカイブについて	https://teratail.com/questions/350544?rss=all	WordPressのカテゴリーアーカイブについて前提・実現したいことデフォルト投稿のアーカイブページにあるカテゴリーの絞り込み検索をしたいです。	2021-07-21 08:58:56
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	サードパーティcookieとは？	https://teratail.com/questions/350543?rss=all	cookie	2021-07-21 08:33:59
海外TECH	DEV Community	5 Useful Array Methods in Javascript	https://dev.to/ayabouchiha/5-useful-array-methods-in-javascript-43c8	Useful Array Methods in JavascriptHi I m Aya Bouchiha today I m going to talk about useful Array methods in Javascript everyevery callbackFunction returns true if all elements in an array pass a specific test otherwise returns falseconst allProductsPrices false because of lt const areLargerThanTwenty allProductsPrices every productPrice gt productPrice gt true because allProductsPrices lt const areLessThanSixty allProductsPrices every productPrice gt productPrice lt somesome callbackFunction returns true if at least one element in the array passes a giving test otherwise it returns false const allProductsPrices const isThereAFreeProduct allProductsPrices some productPrice gt productPrice const isThereAPreciousProduct allProductsPrices some productPrice gt productPrice gt console log isThereAFreeProduct trueconsole log isThereAPreciousProduct false fillfill value startIndex endIndex Array length fills specific elements in an array with a one giving value const numbers console log numbers fill numbers length real exampleconst emailAddress developer aya b gmail com const hiddenEmailAddress emailAddress split fill join console log hiddenEmailAddress de gmail com reversereverse this method reverses the order of the elements in an array const descendingOrder ascendingOrderconsole log descendingOrder reverse includesincludes value startIndex is an array method that returns true if a specific value exists in a giving array otherwise it returns false the specified element is not found const webApps coursera dev treehouse console log webApps includes dev trueconsole log webApps includes medium false Summary every callbackFunction returns true if all elements in an array passed a giving test some callbackFunction returns true if at least one element passed a giving test fill value startIdx endIdx arr length fills specified array elements with a giving value reverse reverses the order of the elements in an array includes value startIdx check if a giving value exist in an specific array References www wschools com www developer mozilla orgHave a nice day	2021-07-20 23:46:07
海外TECH	DEV Community	Dynamic import with HTTP URLs in Node.js	https://dev.to/mxfellner/dynamic-import-with-http-urls-in-node-js-7og	Dynamic import with HTTP URLs in Node jsIs it possible to import code in Node js from HTTP S URLs just like in the browser or in Deno After all Node js has had stable support for ECMAScript modules since version released in April So what happens if we just write something like import Unfortunately it s neither possible import code from HTTP URLs statically nor dynamically because the URL scheme is not supported Loaders and VMAn experimental feature of Node js are custom loaders A loader is basically a set of hook functions to resolve and load source code There is even an example of an HTTP loader Such a loader would be passed to Node js as a command line argument node experimental loader https loader mjsA downside to this approach is that a loader s influence is quite limited For instance the execution context of the downloaded code cannot be modified The team working on loaders is still modifying their API so this could still be subject to change Another Node js API that offers more low level control is vm It enables the execution of raw JavaScript code within the V virtual machine In this blog post we re going to use it to create our own dynamic import implementation Downloading codeLet s start with downloading the remotely hosted code A very simple and naive solution is to just use node fetch or a similar library import fetch from node fetch async function fetchCode url const response await fetch url if response ok return response text else throw new Error Error fetching url response statusText We can use this function to download any ECMAScript module from a remote server In this example we are going to use the lodash es module from Skypack the CDN and package repository of the Snowpack build tool const url import cdn skypack dev lodash es const source await fetchCode url Obviously important security and performance aspects have been neglected here A more fully featured solution would handle request headers timeouts and caching amongst other things Evaluating codeFor the longest time Node js has provided the vm Script class to compile and execute raw source code It s a bit like eval but more sophisticated However this API only works with the classic CommonJS modules For ECMAScript modules the new vm Module API must be used and it is still experimental To enable it Node js must be run with the experimental vm modules flag To use vm Module we are going to implement the distinct steps creation parsing linking and evaluation Creation parsingFirst we need to create an execution context This is going to be the global context in which the code will be executed The context can be just an empty object but some code may require certain global variables like those defined by Node js itself import vm from vm const context vm createContext Next we create an instance of vm SourceTextModule which is a subclass of vm Module specifically for raw source code strings return new vm SourceTextModule source identifier url context The identifier is the name of the module We set it to the original HTTP URL because we are going to need it for resolving additional imports in the next step LinkingIn order to resolve additional static import statements in the code we must implement a custom link function This function should return a new vm SourceTextModule instance for the two arguments it receives The specifier of the imported dependency In ECMAScript modules this can either be an absolute or a relative URL to another file or a bare specifier like lodash es The referencing module which is an instance of vm Module and the parent module of the imported dependency In this example we are only going to deal with URL imports for now async function link specifier referencingModule Create a new absolute URL from the imported module s URL specifier and the parent module s URL referencingModule identifier const url new URL specifier referencingModule identifier toString Download the raw source code const source await fetchCode url Instantiate a new module and return it return new vm SourceTextModule source identifier url context referencingModule context await mod link link Perform the link step EvaluationAfter the link step the original module instance is fully initialised and any exports could already be extracted from its namespace However if there are any imperative statements in the code that should be executed this additional step is necessary await mod evaluate Executes any imperative code Getting the exportsThe very last step is to extract whatever the module exports from its namespace The following corresponds to import random from const random mod namespace Providing global dependenciesSome modules may require certain global variables in their execution context For instance the uuid package depends on crypto which is the Web Crypto API Node js provides an implementation of this API since version and we can inject it into the context as a global variable import webcrypto from crypto import vm from vm const context vm createContext crypto webcrypto By default no additional global variables are available to the executed code It s very important to consider the security implications of giving potentially untrusted code access to additional global variables e g process Bare module specifiersThe ECMAScript module specification allows for a type of import declaration that is sometimes called bare module specifier Basically it s similar to how a require statement of CommonJS would look like when importing a module from node modules import uuid from uuid Where does uuid come from Because ECMAScript modules were designed for the web it s not immediately clear how a bare module specifier should be treated Currently there is a draft proposal by the WC community for import maps So far some browsers and other runtimes have already added support for import maps including Deno An import map could look like this imports uuid Using this construct the link function that is used by SourceTextModule to resolve additional imports could be updated to look up entries in the map const imports importMap const url specifier in imports imports specifier new URL specifier referencingModule identifier toString Importing core node modulesAs we have seen some modules may depend on certain global variables while others may use bare module specifiers But what if a module wants to import a core node module like fs We can further enhance the link function to detect wether an import is for a Node js builtin module One possibility would be to look up the specifier in the list of builtin module names import builtinModules from module Is the specifier e g fs for a builtin module if builtinModules includes specifier Create a vm Module for a Node js builtin module Another option would be to use the import map and the convention that every builtin module can be imported with the node URL protocol In fact Node js ECMAScript modules already support node file and data protocols for their import statements and we just added support for http s An import map with an entry for fs const imports imports fs node fs promises const url specifier in imports new URL imports specifier new URL specifier if url protocol http url protocol https Download code and create a vm SourceTextModule else if url protocol node Create a vm Module for a Node js builtin module else Other possible schemes could be file and data Creating a vm Module for a Node js builtinSo how do we create a vm Module for a Node js builtin module If we used another SourceTextModule with an export statement for e g fs it would lead to an endlessly recursive loop of calling the link function over and over again On the other hand if we use a SourceTextModule with the code export default fs where fs is a global variable on the context the exported module would be wrapped inside an object with the default property This leads to an endless loop calling the link function new vm SourceTextModule export from fs This ends up as an object like default new vm SourceTextModule export default fs context fs await import fs However we can use vm SyntheticModule This implementation of vm Module allows us to programatically construct a module without a source code string Actually import the Node js builtin moduleconst imported await import identifier const exportNames Object keys imported Construct a new module from the actual importreturn new vm SyntheticModule exportNames function for const name of exportNames this setExport name imported name identifier context referencingModule context ConclusionThe still experimental APIs of Node js allow us to implement a solution for dynamically importing code from HTTP URLs in user space While ECMAScript modules and vm Module were used in this blog post vm Script could be used to implement a similar solution for CommonJS modules Loaders are another way to achieve some of the same goals They provide a simpler API and enhance the behaviour of the native import statements On the other hand they are less flexible and they re possibly even more experimental than vm Module There are many details and potential pitfalls to safely downloading and caching remotely hosted code that were not covered Not to even mention the security implications of running arbitrary code A more production ready and potentially safer runtime that uses HTTP imports is already available in Deno That said it s interesting to see what can be achieved with the experimental APIs and there may be certain use cases where the risks to use them are calculable enough Complete exampleCheck out a complete working example on Code Sandbox Or find the code in this repository mfellner react micro frontends Examples for React micro frontends Skypack is nice because it offers ESM versions of most npm packages	2021-07-20 23:17:46
海外科学	NYT > Science	PEPFAR Is Still Without a Leader. H.I.V. Activists Want to Know Why.	https://www.nytimes.com/2021/07/20/health/pepfar-leader-hiv.html	activists	2021-07-20 23:11:51
金融	金融総合：経済レポート一覧	日銀ロスな日本株～２％基準は厳格に：Market Flash	http://www3.keizaireport.com/report.php/RID/462608/?rss	marketflash	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	2021年以降の世界保険市場見通し～今後10年間はアジア新興諸国が牽引：保険・年金フォーカス	http://www3.keizaireport.com/report.php/RID/462609/?rss	保険市場	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	新興国における外貨準備の蓄積の費用・便益について	http://www3.keizaireport.com/report.php/RID/462620/?rss	外貨準備	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	FX Daily(7月19日)～リスク回避でドル円109円台前半まで下落	http://www3.keizaireport.com/report.php/RID/462621/?rss	fxdaily	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	世界的な株価大幅下落：過去の経験則が通用しない不確実性の高い経済・金融見通し：木内登英のGlobal Economy ＆ Policy Insight	http://www3.keizaireport.com/report.php/RID/462622/?rss	lobaleconomypolicyinsight	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	中国の経済動向と金融政策は世界の先行きを示唆しているか：木内登英のGlobal Economy ＆ Policy Insight	http://www3.keizaireport.com/report.php/RID/462623/?rss	lobaleconomypolicyinsight	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	各国グリーン金融政策の胎動～日銀のグリーンオペはどう位置付けられるか：金融・証券市場・資金調達	http://www3.keizaireport.com/report.php/RID/462624/?rss	大和総研	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	「デジタル時代における郵政事業の在り方に関する懇談会」最終報告書（案）	http://www3.keizaireport.com/report.php/RID/462632/?rss	郵政事業	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	経済・金融データ集（2021年7月号）	http://www3.keizaireport.com/report.php/RID/462633/?rss	日本政策金融公庫	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	私的年金を通じた自助努力支援：証券レビュー	http://www3.keizaireport.com/report.php/RID/462640/?rss	日本証券経済研究所	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	FRBの金融安定報告書（2021年5月）の紹介～資産価格上昇、ヘッジファンドのリスクを警戒：証券レビュー	http://www3.keizaireport.com/report.php/RID/462642/?rss	日本証券経済研究所	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	米中デカップリングとスタートアップ投資 『米中分断の虚実』抄録(2)：JCER 中国・アジアウォッチ	http://www3.keizaireport.com/report.php/RID/462650/?rss	日本経済研究センター	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	日本株の道標「日経平均は一時レンジ下限割れに～“クオリティ”の高い銘柄の押し目買いが有効に～」	http://www3.keizaireport.com/report.php/RID/462655/?rss	岡三証券	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	コモディティ・レポート（2021年4～6月）～コモディティ市況全般：7月初に6年ぶり高値 ドル建て国際商品市況全般。エネルギー市況：ブレントは一時78ドル近く、WTIは77ドル近くまで上昇...	http://www3.keizaireport.com/report.php/RID/462659/?rss	三菱ufj	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	空前320兆円の金あまり～民間法人企業の現預金をどう動かすか？：Economic Trends	http://www3.keizaireport.com/report.php/RID/462661/?rss	economictrends	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	じわりと進む円高、持続性をどう見るか？～マーケット・カルテ８月号	http://www3.keizaireport.com/report.php/RID/462664/?rss	研究所	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	2020年度　生命保険会社決算の概要：基礎研レポート	http://www3.keizaireport.com/report.php/RID/462665/?rss	生命保険	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	不動産特定共同事業（FTK）の多様な活用手法検討会 中間とりまとめ～地域の課題解決に役立つ不動産証券化手法...	http://www3.keizaireport.com/report.php/RID/462672/?rss	不動産証券化	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	不動産特定共同事業（ＦＴＫ）の利活用促進ハンドブック	http://www3.keizaireport.com/report.php/RID/462673/?rss	共同事業	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	ラキール（東証マザーズ）～システム開発・保守サービスとクラウド型のシステム開発基盤を提供。LaKeel DXで産業のデジタルトランスフォーメーション推進を目指す：アナリストレポート	http://www3.keizaireport.com/report.php/RID/462677/?rss	lakeeldx	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	【注目検索キーワード】バイオプラスチック	http://search.keizaireport.com/search.php/-/keyword=バイオプラスチック/?rss	検索キーワード	2021-07-21 00:00:00
金融	金融総合：経済レポート一覧	【お薦め書籍】アフターコロナのニュービジネス大全　新しい生活様式×世界15カ国の先進事例	https://www.amazon.co.jp/exec/obidos/ASIN/4799327437/keizaireport-22/	生活様式	2021-07-21 00:00:00
金融	日本銀行：RSS	預金種類別店頭表示金利の平均年利率等	http://www.boj.or.jp/statistics/dl/depo/tento/te210721.pdf	預金	2021-07-21 08:50:00
金融	日本銀行：RSS	金融政策決定会合議事要旨（6月17、18日開催分）	http://www.boj.or.jp/mopo/mpmsche_minu/minu_2021/g210618.pdf	金融政策決定会合	2021-07-21 08:50:00
金融	日本銀行：RSS	FSBレポ統計の日本分集計結果	http://www.boj.or.jp/statistics/bis/repo/index.htm	集計	2021-07-21 08:50:00
ニュース	@日本経済新聞 電子版	【ニュースなこの日】2001年7月21日 兵庫・明石で歩道橋事故 花火客ら転倒、11人死亡 https://t.co/bKXrqBsu2y	https://twitter.com/nikkei/statuses/1417635545077923845	転倒	2021-07-21 00:00:26
ニュース	@日本経済新聞 電子版	中国で時速600キロのリニアモーターカーが完成。JR東海が記録した最高時速603キロに迫り、北京と上海間の所要時間は3時間半といいます。鉄道車両で世界最大手の中国中車が実用化へ意欲を示しました。 https://t.co/xjywiNOU5H	https://twitter.com/nikkei/statuses/1417632273839579138		2021-07-20 23:47:27
ニュース	@日本経済新聞 電子版	ポッドキャスト「マネーのとびら」　本日配信開始 https://t.co/eF4RZZAHyE	https://twitter.com/nikkei/statuses/1417626339834617857	配信	2021-07-20 23:23:52
ニュース	@日本経済新聞 電子版	米株反発で投資家心理の悪化に歯止め（先読み株式相場） https://t.co/FRfqPkkgUL	https://twitter.com/nikkei/statuses/1417625069505769478	株式相場	2021-07-20 23:18:49
ニュース	@日本経済新聞 電子版	ハイチ首相にアンリ氏が就任　大統領が暗殺前に任命 https://t.co/D9wOsHC663	https://twitter.com/nikkei/statuses/1417624600238694402	首相	2021-07-20 23:16:57
ニュース	@日本経済新聞 電子版	監視ソフトのリストに仏、南ア首脳の電話番号　欧米報道 https://t.co/zRCjQ9QxUw	https://twitter.com/nikkei/statuses/1417624597843742722	電話番号	2021-07-20 23:16:56
ニュース	@日本経済新聞 電子版	電子処方箋とは　服薬の履歴、確認しやすく（きょうのことば） https://t.co/PxyClBvmrh	https://twitter.com/nikkei/statuses/1417622656048898052	電子	2021-07-20 23:09:14
ニュース	@日本経済新聞 電子版	ソフトボールいざ先陣　13年ぶり五輪、21日豪州戦 https://t.co/B2DT98Oa3N	https://twitter.com/nikkei/statuses/1417621056639037443	豪州	2021-07-20 23:02:52
ニュース	BBC News - Home	The Papers: 'Gunboat diplomacy' and fears of new Covid rules	https://www.bbc.co.uk/news/blogs-the-papers-57910489	england	2021-07-20 23:11:57
LifeHuck	ライフハッカー［日本版］	マインドセットでもビジョンもない。生産性を上げるのに必要なこととは？	https://www.lifehacker.jp/2021/07/236999a-growth-mindset-doesnt-improve-productivity-but-this-does.html	秘伝	2021-07-21 08:30:00
GCP	Google Cloud Platform Japan 公式ブログ	特に環境に配慮した Google Cloud リージョンにリソースを配置したいお客様のために	https://cloud.google.com/blog/ja/topics/sustainability/pick-the-google-cloud-region-with-the-lowest-co2/	この機能をリリースする前にテストを実施してその影響を測定したのですが、機能が強化されたリージョン選択ツールが表示されたお客様は、CloudRunサービスに関して二酸化炭素排出量が低いリージョンを選ぶ確率がも大幅に上昇するという結果になりました。	2021-07-21 01:00:00
北海道	北海道新聞	ＮＦＬのブレイディら大統領訪問　王者バッカニアーズ	https://www.hokkaido-np.co.jp/article/569504/	訪問	2021-07-21 08:01:00
GCP	Cloud Blog JA	特に環境に配慮した Google Cloud リージョンにリソースを配置したいお客様のために	https://cloud.google.com/blog/ja/topics/sustainability/pick-the-google-cloud-region-with-the-lowest-co2/	この機能をリリースする前にテストを実施してその影響を測定したのですが、機能が強化されたリージョン選択ツールが表示されたお客様は、CloudRunサービスに関して二酸化炭素排出量が低いリージョンを選ぶ確率がも大幅に上昇するという結果になりました。	2021-07-21 01:00:00