| IT |
ITmedia 総合記事一覧 |
[ITmedia News] ランサムウェアグループ、ロシア政府支持を一時表明 ロシアを標的としたサイバー攻撃に「持てるリソースを全て注ぎ込み報復」 |
https://www.itmedia.co.jp/news/articles/2202/26/news088.html
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conti |
2022-02-26 22:15:00 |
| js |
JavaScriptタグが付けられた新着投稿 - Qiita |
【Vue】Youtubeの埋め込み動画を表示する |
https://qiita.com/hi-taku/items/5b59cf2c18ce1f44bafb
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下のようなコードが取得できます。 |
2022-02-26 22:22:23 |
| js |
JavaScriptタグが付けられた新着投稿 - Qiita |
GoogleMapAPIを利用する |
https://qiita.com/RyujiWatanabe/items/0c27ef378bc5b27344c0
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このクラスを使用することで、指定されたHTML要素内にマップを作成します。 |
2022-02-26 22:06:37 |
| AWS |
AWSタグが付けられた新着投稿 - Qiita |
AWS クラウドプラティクショナー 流し見用 part7 |
https://qiita.com/shirochu0911/items/2b4524ac43da43116fe7
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状態を維持・許可のみをInoutで指定・デフォルトでは同じセキュリティグループ内通信のみ許可・全てのルールを適用ネットワークACLs設定・VPCサブネット単位で適用・ステートレスインバウンド設定だけではアウトバウンドは許可されない・許可と拒否をInoutで指定・デフォルトでは全ての通信を許可する設定・番号の順序通りに適用毎月の請求額を見積もるツールAWSPricingCalculatorAWSのユーザがAWS請求額を効率的に見積もる際に利用するツールCostExplorer月額コストの予測分析が可能な分析ツールカスタムレポートを作成してコストと使用量のデータを分析できるRouteが提供する機能・DNS名前解決・ドメイン登録AmazonRouteはAWSのドメインネームシステムDNSサービスであり、ドメインを登録して、DNS名前解決をしてドメインをルーティングする事ができるその際にDNSヘルスチェックを構成し、トラフィックを正常なエンドポイントにルーティングしたり、アプリケーションやそのエンドポイントの正常性を独立してモニタリングする事ができる新しいドメイン名を取得する場合は、ドメイン名をAmazonRouteに登録して利用する事が可能また、既存のドメインの登録を他のレジストラドメインを販売して登録するベンダーからRouteに移管することもできる逆にRouteに登録したドメインの登録を別のレジストラに移管することもできるリードレプリカAmazonRDSにおいてデータベース読み取り処理をオフロード負荷を軽減することする事ができる機能をリードレプリカと呼ぶリードレプリカによってRDSはデータベースDBインスタンスのパフォーマンスと耐久性が向上する。 |
2022-02-26 22:57:10 |
| AWS |
AWSタグが付けられた新着投稿 - Qiita |
【初心者向け】AWSで、EC2インスタンス(Amazon Linux 2)にSSH接続する【無料枠範囲内】 |
https://qiita.com/raptony110/items/d0994c109a7c551e5924
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作成したインスタンスにAWSコンソール上から接続する作成したインスタンスにチェックを入れ、接続ボタンを押します。 |
2022-02-26 22:38:27 |
| Git |
Gitタグが付けられた新着投稿 - Qiita |
Windows10でGitHubを始める～①Gitインストール |
https://qiita.com/emiki/items/c0aa0b4da4b63921b153
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デフォルトで選択されている「Gitfromthecommandlineandalsofromrdpartysoftware」は他のコマンドラインツールでgitコマンドを使用できるようにするために必要な最小限の環境変数を設定するよと注釈がついている。 |
2022-02-26 22:05:35 |
| Ruby |
Railsタグが付けられた新着投稿 - Qiita |
sendメソッドメモ |
https://qiita.com/takapashi/items/668ba38a6729a0875ce8
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activationdigestこれは、シンボルが式展開されて文字列になったのと同じ仕組みです。 |
2022-02-26 22:44:53 |
| 海外TECH |
Ars Technica |
How the games industry shake-up could play out |
https://arstechnica.com/?p=1836741
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indie |
2022-02-26 13:00:52 |
| 海外TECH |
MakeUseOf |
6 Lesser-Known Apple Watch Workout Types to Try Next |
https://www.makeuseof.com/lesser-known-apple-watch-workout-types/
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types |
2022-02-26 13:46:13 |
| 海外TECH |
MakeUseOf |
What Is Database Maintenance and Why Is It Important? |
https://www.makeuseof.com/what-is-database-maintenance/
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What Is Database Maintenance and Why Is It Important Database maintenance is crucial for every organization in a society prone to cyberattacks But why is it important and what benefits does it offer |
2022-02-26 13:15:13 |
| 海外TECH |
DEV Community |
How Hoisting works in JavaScript ? |
https://dev.to/thenerdydev/how-hoisting-works-in-javascript--e0h
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How Hoisting works in JavaScript What is Hoisting in JavaScript JavaScript Hoisting refers to the process whereby the interpreter appears to move the declaration of functions variables or classes to the top of their scope prior to execution of the code Hoisting allows functions to be safely used in code before they are declared Variable and class declarations are also hoisted so they too can be referenced before they are declared Note that doing so can lead to unexpected errors and is not generally recommended Hoisting is JavaScript s default behavior of moving declarations to the top This article was first published on Check the website for more interesting articles and tutorials on Web Development However there is a big misconception among developers regarding this concept of hoisting Now as a JavaScript developer it is super important for you to truly understand the concept of hoisting not only because it will give you a better understanding of the language but also because this is one of the most important concepts that can easily award or cost you some points in interview rounds of a web development interview Let us see an example to understand more about hoistinglogUsername console log username define the username variable var username Alex function logUsername console log username console log logged Here is what we get as the output for the above code HOW JAVASCRIPT WORK UNDER THE HOOD When the JavaScript Engine goes over your code it parses it and simply analyze it it creates something called as the Execution Context So this execution context is kind of a wrapper around your currently running code It comprises of the global variable the this object you may know it as the this keyword and the lexical variable environment of that execution context Let us see an example first and then we will understand the concept of Hoisting in these examples using the Execution Context var num function foobar console log function foobar is called foobar console log num If we execute the above code we get the following output Now what will happen if we move the last lines of code in the beginning like this foobar console log num var num function foobar console log function foobar is called We will get the following output if we run the above code Ideally for this case we would expect JavaScript to raise an exception because the function foobaris getting called right before it is declared and the variable numis getting referenced before its declaration In this case if we see the output the function foobaris getting executed even though we called it way before its declaration point and for the variable numwe are getting an undefined This simply means that JavaScript has access to the the foobarfunction and the numvariable which is stored somewhere Now in order to understand this we need to understand the phases of execution context in JavaScript Execution Context comprises of two phases CREATION PHASE During the creation phase of the execution context JavaScript performs memory space allocation for the functions and the variables that we define In case of functions the whole function body gets stored but in case of the variables it is declared and assigned a default value of undefined This entire thing is also termed as Hoisting in JavaScript An important thing to understand is the value of numis set to undefined during this phase because JavaScript in this case finds a variable numdefined somewhere in our above code If we remove the line var num then it will result in an error Uncaught ReferenceError num is not defined So in the above when JavaScript ran console log num the var numis not assigned any value at that point so it picked up the value from the memory space which is set to undefined during the creation phase and printed that value As a side note it is recommended not to rely on hoisting that means it is a good practice to declare and define the variables and the functions before they are referred EXECUTION PHASE In this phase JavaScript executes our code line by line and assigns the value to all our variables In our above example a value of is assigned to the variable numTo understand this let us have a look at the below code function foobar console log function foobar is called foobar console log num var num console log a Since we now understand the different phases of Execution we can easily say by looking at the above code that the output of our code should be The function foo gets called and it prints the following message to the console function foobar is called Now on the next line as we know that during the creation phase JavaScript assigns a default value of undefined to the num variable So this gives undefined as output The last line logs Now the reason for getting here is that in the execution phase assignment of variable happened and num got the value of So this is it for this article Thanks for reading If you enjoy my articles consider following me on Twitter for more interesting stuff Twitter Don t forget to leave a like if you loved the article Also share it with your friends and colleagues |
2022-02-26 13:20:20 |
| Apple |
AppleInsider - Frontpage News |
Daily deals Feb. 26: Acer 28" 4K monitor for $210; 32GB SanDisk SDHC for $8; $550 LG 50" 4K Smart TV |
https://appleinsider.com/articles/22/02/26/daily-deals-feb-26-acer-28-4k-monitor-for-210-32gb-sandisk-sdhc-for-8-550-lg-50-4k-smart-tv?utm_medium=rss
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Daily deals Feb Acer quot K monitor for GB SanDisk SDHC for LG quot K Smart TVSaturday s top deals include the Razer Cynosa Chroma RGB keyboard for a TB WD Black portable SSD for and Sennheiser HD S headphones for Saturday s deals include Sennheiser headphones an SanDisk memory card and a discounted LG Smart TV Each day we scour the internet for some of the best deals we can find online including great prices on Apple products tech accessories and other items so we can help you save money If an item is out of stock you may still be able to order it for delivery at a later date Many of the discounts are likely to expire soon though so be sure to grab what you can Read more |
2022-02-26 13:43:33 |
| ニュース |
@日本経済新聞 電子版 |
国内コロナ感染、新たに7万2170人 累計489万8227人
https://t.co/AkAT655QTO |
https://twitter.com/nikkei/statuses/1497570199108976640
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累計 |
2022-02-26 13:52:13 |
| ニュース |
@日本経済新聞 電子版 |
泥縄だから結果ノーグッド 持ち腐れコロナアプリ
https://t.co/wZBYHIJFZ1 |
https://twitter.com/nikkei/statuses/1497568400603815939
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持ち腐れ |
2022-02-26 13:45:04 |
| ニュース |
@日本経済新聞 電子版 |
企業、供給網寸断に備え トヨタは緊急点検
https://t.co/eJ0b1TqClI |
https://twitter.com/nikkei/statuses/1497567545658081289
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緊急 |
2022-02-26 13:41:41 |
| ニュース |
@日本経済新聞 電子版 |
ロシアへの輸出管理厳格に、工作機械など対象 経産省
https://t.co/qqqEwfV9A9 |
https://twitter.com/nikkei/statuses/1497565268150669313
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工作機械 |
2022-02-26 13:32:38 |
| ニュース |
@日本経済新聞 電子版 |
函館線・根室線… ローカル線は廃止に向かうのか
https://t.co/Z41qPetqjp |
https://twitter.com/nikkei/statuses/1497564645925789697
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根室 |
2022-02-26 13:30:09 |
| ニュース |
@日本経済新聞 電子版 |
お飾り社外取締役、もう許されず 不正の監督責任厳しく
https://t.co/gtusZitCcu |
https://twitter.com/nikkei/statuses/1497560846746234890
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監督責任 |
2022-02-26 13:15:03 |
| ニュース |
BBC News - Home |
Ukraine conflict: Britain sending more arms as fighting reaches Kyiv |
https://www.bbc.co.uk/news/uk-60536064?at_medium=RSS&at_campaign=KARANGA
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britain |
2022-02-26 13:51:41 |
| ニュース |
BBC News - Home |
Ukraine invasion: Russia restricts social media access |
https://www.bbc.co.uk/news/technology-60533083?at_medium=RSS&at_campaign=KARANGA
|
accessconnectivity |
2022-02-26 13:21:12 |
| ニュース |
BBC News - Home |
British Airways short-haul flights from Heathrow cancelled |
https://www.bbc.co.uk/news/business-60533275?at_medium=RSS&at_campaign=KARANGA
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issues |
2022-02-26 13:21:58 |
| サブカルネタ |
ラーブロ |
豚ラーメン 蕨店/ミニ豚らーめん (960円) |
http://ra-blog.net/modules/rssc/single_feed.php?fid=196791
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埼玉県蕨市 |
2022-02-26 13:05:50 |
| 北海道 |
北海道新聞 |
現役世代６カ月に前倒し４６市区 モデルナ交互接種「順調」２９市 |
https://www.hokkaido-np.co.jp/article/650359/
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新型コロナウイルス |
2022-02-26 22:18:00 |
| 北海道 |
北海道新聞 |
ＮＨＫ「カムカム―」撮影終了 ３世代ヒロインで家族の１００年 |
https://www.hokkaido-np.co.jp/article/650344/
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連続テレビ小説 |
2022-02-26 22:08:12 |
| 海外TECH |
reddit |
/r/WorldNews Live Thread: Russian Invasion of Ukraine Day 3, Part 9 (Thread #38) |
https://www.reddit.com/r/worldnews/comments/t1x4qt/rworldnews_live_thread_russian_invasion_of/
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r WorldNews Live Thread Russian Invasion of Ukraine Day Part Thread submitted by u Duglitt to r worldnews link comments |
2022-02-26 13:29:33 |
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