投稿時間:2021-08-23 03:17:34 RSSフィード2021-08-23 03:00 分まとめ(18件)

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python	Pythonタグが付けられた新着投稿 - Qiita	Keras、cv2、PILの画像水増しの比較	https://qiita.com/HarutoTakayama/items/5850d1e0fc4077a35ffb	※配列化するとき一般的にRGBなのだが、cvはBGRになっているので注意が必要サンプルを以下に記す。	2021-08-23 02:14:01
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	一定が変化したとき元の座標に戻る動きを作りたい	https://teratail.com/questions/355639?rss=all	一定が変化したとき元の座標に戻る動きを作りたい前提・実現したいことunityにて、簡単なアクションゲームを制作しています。	2021-08-23 02:57:26
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	関数を使ったコードの簡略化	https://teratail.com/questions/355638?rss=all		2021-08-23 02:57:00
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	PHP　functionエラー	https://teratail.com/questions/355637?rss=all	error	2021-08-23 02:44:36
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Wordpress のロゴ画像を中央に寄せたい。	https://teratail.com/questions/355636?rss=all	Wordpressのロゴ画像を中央に寄せたい。	2021-08-23 02:06:07
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	【Python】画像表示ができない【VSC】	https://teratail.com/questions/355635?rss=all		2021-08-23 02:01:33
Ruby	Rubyタグが付けられた新着投稿 - Qiita	[Ruby] ハッシュ	https://qiita.com/skmtydi947/items/0614f1c42eba6fd7e477		2021-08-23 02:07:28
海外TECH	Ars Technica	Recreating a medieval mead calls for a giant cauldron to caramelize honey	https://arstechnica.com/?p=1788923	caramelize	2021-08-22 17:36:55
海外TECH	DEV Community	Cancel fetch requests, and a way to abstract it	https://dev.to/nombrekeff/cancel-fetch-requests-and-a-way-to-abstract-it-3gib	Cancel fetch requests and a way to abstract itWorking on another post tutorial on fetch I found myself needing to cancel individual fetch requests I investigated a bit and learned about AbortController supported in all browsers except can you guess who yeah IE Pretty neat stuff let me show you how it s used and I will explain it later on function fetchTodos signal return fetch todos signal function fetchUsers signal return fetch users signal const controller new AbortController fetchTodos controller signal fetchUsers controller signal controller abort  Okay now let me break that downFirst we define two functions that use fetch to retrieve some data they also receive a signal argument explained a bit further function fetchTodos signal return fetch todos signal function fetchUsers signal return fetch users signal After that we create an instance of AbortController this controller will allow us to get a signal to pass to fetch and it also gives us the option to cancel the request const controller new AbortController Then we just pass the signal property of the controller to both fetch requests fetchTodos controller signal fetchUsers controller signal What s this signal thing Well basically it s a mechanism to communicate with a DOM request Not directly though a reference to the signal is passed to fetch but then abort using the controller which internally interacts with the signal As you can see we are passing in the same signal to both requests this means if we abort on the current controller it will cancel all ongoing requests Finally at any point after running fetch we can cancel the request if it s not yet completed controller abort Note When abort is called the fetch promise rejects with a DOMException named AbortError BUT WAITWhat if we try to run fetchTodos again after aborting previous codecontroller abort fetchTodos controller signal If we pass the same signal it will instantly abort the request We would need to create a new controller and signal for the new request becoming a bit tedious to add to each specific requests Lets see the solution I found by returning a custom object and generating a signal for each request The first thing we need is a class that will wrap around the fetch promise and optionally the abort controller export class CustomRequest constructor requestPromise abortController if promise instanceof Promise throw TypeError CustomRequest expects promise argument to be a Promise Only check abort controller if passed in otherwise ignore it if abortController amp amp abortController instanceof AbortController throw TypeError CustomRequest expects abortController argument to be an AbortController this promise requestPromise this abortController abortController abort if this abortController return return this abortController abort then fn this promise this promise then fn return this catch fn this promise this promise catch fn return this CustomRequest behaves almost exactly like a promise but we add some extra functionality in the form of the abort method Next create a wrapper around fetch called abortableFetch which will return a new CustomRequest instead of the regular fetch promise export function abortableFetch uri options const abortController new AbortController const abortSignal abortController signal const mergedOptions signal abortSignal method HttpMethods GET this options options const promise fetch uri mergedOptions return new CustomRequest promise abortController Let us now change the original example and apply the new fetch function function fetchTodos return abortableFetch todos function fetchUsers return abortableFetch users const todosReq fetchTodos const usersReq fetchUsers We can now call abort on each individual requeststodosReq abort usersReq abort Much better right We can even use is as a regular promise const todosReq fetchTodos todosReq then catch Another thing to notice you can still override the signal in case you want to controll all requests with the same signal function fetchTodos return abortableFetch todos signal globalSignal This signal will override the default one created in abortableFetch Complete codeexport class CustomRequest constructor requestPromise abortController if promise instanceof Promise throw TypeError CustomRequest expects promise argument to be a Promise Only check abort controller if passed in otherwise ignore it if abortController amp amp abortController instanceof AbortController throw TypeError CustomRequest expects abortController argument to be an AbortController this promise requestPromise this abortController abortController abort if this abortController return return this abortController abort then fn this promise this promise then fn return this catch fn this promise this promise catch fn return this export function abortableFetch uri options const abortController new AbortController const abortSignal abortController signal const mergedOptions signal abortSignal method HttpMethods GET this options options const promise fetch uri mergedOptions return new CustomRequest promise abortController function fetchTodos return abortableFetch todos function fetchUsers return abortableFetch users const todosReq fetchTodos const usersReq fetchUsers We can now call abort on each individual requeststodosReq abort usersReq abort SummaryWell for me this is another weird API if I m honest It does the job but could have been done better That aside we can do some stuff around it and improve our experience a bit And to recap in this post we ve seen how to cancel requests in the most simple way detected some weird or tedious things and finally built something on top of it to help us ease the process LinksfetchAbortControllerAbortSignalAnother quick post I was in a writing mode this weekend so I hope you liked it and found it usefull If you did consider supporting me by reacting to the post following me here or over on GitHub or commenting	2021-08-22 17:52:15
Apple	AppleInsider - Frontpage News	Monoprice SB-300 Soundbar review: an ideal apartment soundbar	https://appleinsider.com/articles/21/08/22/monoprice-sb-300-soundbar-review-an-ideal-apartment-soundbar?utm_medium=rss	Monoprice SB Soundbar review an ideal apartment soundbarThe Monoprice SB soundbar offers Dolby Atmos compatibility and good sound for a simplified home theater setup You ll need the remote to control most featuresSometimes simple is best especially when adding a home theater speaker system to your home or office The Monoprice SB soundbar brings Dolby Atmos support to any TV setup without breaking the bank Read more	2021-08-22 17:41:54
海外TECH	Engadget	Facebook releases Q1 'widely viewed content' report following criticism	https://www.engadget.com/facebook-q-1-widely-viewed-content-report-175024538.html?src=rss	Facebook releases Q x widely viewed content x report following criticismLast week Facebook released its first quot widely viewed content quot report a document that essentially was the company s response to numerous reports that the most engaging content on the platform usually comes from polarizing and potentially misleading conservative figures and outlets including Newsmax Fox News Ben Shapiro and Dan Bongino The report last week contradicted that saying that in Q of top domains included more innocuous content coming from YouTube Amazon TikTok and a cat GIF from Tumblr nbsp But on Friday the New York Times published a report saying that it had seen a quot widely viewed content quot report for Q of and that it showed different trends For example the most viewed link was a story claiming a Florida doctor died from the coronovirus vaccine Facebook has now confirmed the document s accuracy and released it directly Facebook spokesperson Andy Stone took to Twitter to get into the details of the report and said that Facebook withheld the report because quot there were key fixes to the system we wanted to make quot but he didn t elaborate on what those fixes are On the question of the unreleased report from earlier this year and why we held it We ended up holding it because there were key fixes to the system we wanted to make ーAndy Stone andymstone August Stone also did a deep dive into the misleading story that came out of Florida trying to explain Facebook s decisions around it “News outlets wrote about the south Florida doctor that died When the coroner released a cause of death the Chicago Tribune appended an update to its original story NYTimes did not quot he wrote on Twitter quot Would it have been right to remove the Times story because it was COVID misinfo Of course not No one is actually suggesting this and neither am I But it does illustrate just how difficult it is to define misinformation quot As noted by the New York Times Facebook has been trying to counter pressure around the things shared on its platform specifically regarding misinformation around COVID and its vaccine Much of that pressure is coming directly from the US government President Biden memorably said last month that Facebook was quot killing people quot with vaccine misinformation on its site though he walked back his statements slightly later	2021-08-22 17:50:24
ニュース	BBC News - Home	Afghanistan: The BBC's Lyse Doucet reports from Kabul airport	https://www.bbc.co.uk/news/world-asia-58300416	taliban	2021-08-22 17:45:18
ニュース	BBC News - Home	Arsenal 0-2 Chelsea: Romelu Lukaku scores as Blues win London derby	https://www.bbc.co.uk/sport/football/58193457	arsenal	2021-08-22 17:34:04
ニュース	BBC News - Home	'From basketball to rugby' - Solskjaer joins criticism of new refereeing approach after Man Utd draw	https://www.bbc.co.uk/sport/football/58300075	x From basketball to rugby x Solskjaer joins criticism of new refereeing approach after Man Utd drawManchester United manager Ole Gunnar Solskjaer has joined Jurgen Klopp in complaining about the way referees are interpreting new laws this season	2021-08-22 17:27:42
ニュース	BBC News - Home	Afghanistan crisis: 'Hey world, do you care what happens here?'	https://www.bbc.co.uk/news/world-asia-58297623	afghanistan	2021-08-22 17:41:55
ビジネス	ダイヤモンド・オンライン - 新着記事	日本資本主義の父・渋沢栄一が信仰していた神様は？ - 最強の神様100	https://diamond.jp/articles/-/280031	日本資本主義の父・渋沢栄一が信仰していた神様は最強の神様「仕事運」「金運」「恋愛運」「健康運」アップ「のご利益」の組み合わせからあなたの願いが叶う神様が必ず見つかる八百万やおよろずの神様から項目にわたって紹介。	2021-08-23 02:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	成績のいい子の特徴＝ 「頭の中の引き出し」 はノートで作れる！ - 中学受験必勝ノート術	https://diamond.jp/articles/-/279563	成績のいい子の特徴「頭の中の引き出し」はノートで作れる中学受験必勝ノート術大手塾で算数講師の経験を積んだ後、算数専門のプロ家庭教師として約年間、人以上のお子さんを指導してきた中学受験専門のカリスマ家庭教師・安浪京子先生は、その経験から「ノートをひと目見ると、その子の学力がわかる」と言います。	2021-08-23 02:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	あるがままの自分を受け入れてもらいたい という生き方は、 なぜ、まちがっているのか？ - 生きづらいがラクになる ゆるメンタル練習帳	https://diamond.jp/articles/-/279965		2021-08-23 02:45:00