| js |
JavaScriptタグが付けられた新着投稿 - Qiita |
JavaScriptでGIF画像生成メモ #twilio_online_contest_2021 |
https://qiita.com/n0bisuke/items/bd7d4b1a3209146ad7e0
|
JavaScriptでjsgifを使ってアニメーションGIFを動的生成するindexhtmlltDOCTYPEhtmlgtlthtmllangengtltheadgtltmetacharsetUTFgtltmetahttpequivXUACompatiblecontentIEedgegtltmetanameviewportcontentwidthdevicewidthinitialscalegtlttitlegtGIF生成lttitlegtltheadgtltbodygtltdividanimegtltimgsrcimagesgifpngwidthgtltimgsrcimagesgifpngwidthgtltimgsrcimagesgifpngwidthgtltimgsrcimagesgifpngwidthgtltimgsrcimagesgifpngwidthgtltimgsrcimagesgifpngwidthgtltimgsrcimagesgifpngwidthgtltdivgtltdivgtltpgtltbuttonidcreategtアニメGIFを作成するltbuttongtltpgtltcanvasidcanvasstyledisplaynonegtltcanvasgtltimgidanimegifgtltdivgtltscriptsrcjsgifbjsgtltscriptgtltscriptsrcjsgifLZWEncoderjsgtltscriptgtltscriptsrcjsgifNeuQuantjsgtltscriptgtltscriptsrcjsgifGIFEncoderjsgtltscriptgtltscriptsrcscriptjsgtltscriptgtltbodygtlthtmlgtscriptjsletencoderdocumentquerySelectorcreateonclickeventgtcanvasの取得constcanvasdocumentquerySelectorcanvasconstctxcanvasgetContextdGIFEncoderの初期処理encodernewGIFEncoderencodersetRepeat繰り返し回数無限ループencodersetDelayコマあたりの待機秒数ミリ秒encoderstart画像ファイル一覧を取得framesdocumentquerySelectorAllanimeimgcanvasのサイズを枚目のコマに合わせるcanvaswidthframesnaturalWidthcanvasheightframesnaturalHeight全ての画像をcanvasへ描画forletframenoframenoltframeslengthframenoctxdrawImageframesframenoencoderaddFramectxコマ追加アニメGIFの生成encoderfinishdocumentquerySelectoranimegifsrcdataimagegifbaseencodeencoderstreamgetDataよもやまお絵描きしたCanvasから直接生成できるように出来るといいですよね。 |
2021-06-07 02:06:22 |
| Program |
[全てのタグ]の新着質問一覧｜teratail（テラテイル） |
固有ベクトルが正しく求まらない |
https://teratail.com/questions/342555?rss=all
|
固有ベクトルが正しく求まらないlinalgeigで固有ベクトルを求めたいのですが正しく求まりません。 |
2021-06-07 02:04:27 |
| Docker |
dockerタグが付けられた新着投稿 - Qiita |
演習型ITリテラシー学習アプリを作りました。 |
https://qiita.com/tokiya_takai/items/207085475075fcb975a4
|
なぜ作ったのか昨今でもないですが、日本はITリテラシーが低いとよく耳にします。 |
2021-06-07 02:47:01 |
| Ruby |
Railsタグが付けられた新着投稿 - Qiita |
Fakerを利用してダミーデーター作成 |
https://qiita.com/rikuto_hr/items/d449b1fa0ee53387b6da
|
Fakerを利用してダミーデーター作成使う意味掲示板などを作成して投稿されたらどのようになるのか、確かめたい時に一個一個手作業で書くよりダミーデーターを作成して確認するため。 |
2021-06-07 02:17:23 |
| 海外TECH |
Ars Technica |
Ancient electric cars meet modern EVs at Amelia Island show |
https://arstechnica.com/?p=1770326
|
hummer |
2021-06-06 17:15:14 |
| 海外TECH |
DEV Community |
Brief Intro to TypeORM |
https://dev.to/courtamos/brief-intro-to-typeorm-5g35
|
Brief Intro to TypeORM What Even is an ORM For those who might not know let s start with the definition of Object Relational Mapping ORM After a quick google search you ll see that ORM isa programming technique for converting data between incompatible type systems using object oriented programming languages So what exactly does this mean It means that by using an ORM framework you can query your database using the object oriented paradigm that you prefer rather than directly querying the database TypeORMTypeORM is a popular ORM framework that aims to support the latest JavaScript features and provides developers with additional features that help with the development of applications that use databases How it WorksYou might be asking yourself so how does TypeORM work Well TypeORM will map the entity objects in our applications to our databases tables and rows This then enables us to interact with our database through the objects in our application Now that we know how TypeORM works let s explain it a bit more but this time using an example Here we have a table in our database called products and it looks like the following code We have the product id name description and the date posted CREATE TABLE products id SERIAL PRIMARY KEY name VARCHAR NOT NULL description VARCHAR NOT NULL date posted DATE NOT NULL Now let s say we want to query our table to select the product where the name is Product Name Below is how we would do this query in plain SQL This would return the entire row from our database SELECT FROM products WHERE name Product Name Now let s do the same thing but this time utilizing TypeORM This will return an object We can now see that TypeORM enables us to select a row from our database and returns it to us as an object const product productsRepository findOne name Product Name id name Product Name description Product description here date posted Although the second method using TypeORM looks different than the plain SQL it essentially does the same thing TypeORM will transform our query into an equivalent plain SQL query similar to our first example TypeORMs PatternsORM patterns are patterns that define how developers can access the data from their database and use it for their applications Two common patterns are Active Record and Data Mapper patterns and both are supported by TypeORM The Active Record pattern uses an object to wrap the database We are then able to add methods which enable us to access and modify the data directly When using this pattern we define all of our query methods inside of the model which then enables us to modify our objects using the model methods The Data Mapper pattern separates the objects and database so that they are unaware of each other s existence When using this pattern we define all of our query methods in separate classes called repositories We are then able to modify our objects using these repositories So what s the difference between the two To put it into more straightforward terms Active Records pattern allows us to access our database within our modelsData Mapper pattern allows us to access our database within our repositories Why Use TypeORM or Any ORM It s simple enough to directly query our database so why bother using TypeORM or any other ORM framework One of the main reasons that developers choose to use an ORM framework is so they can continue writing their code in the language they already know instead of using plain SQL Overall using an ORM framework enables developers to create their applications with a bit more ease while also making their applications significantly easier to maintain |
2021-06-06 17:03:46 |
| Apple |
AppleInsider - Frontpage News |
Deals: every Apple TV 2021 is on sale, prices from $137 |
https://appleinsider.com/articles/21/06/06/deals-every-apple-tv-2021-is-on-sale-prices-from-137?utm_medium=rss
|
Deals every Apple TV is on sale prices from The new Apple TV with the redesigned Siri remote is on sale now with exclusive coupon savings knocking to off the HD and K models Apple TV dealsThe exclusive discounts are valid at Apple Authorized Reseller Adorama with coupon code APINSIDER when used with this activation link Read more |
2021-06-06 17:41:03 |
| 海外TECH |
Engadget |
WatchOS 8 app 'leaks' hint at a more independent Apple Watch |
https://www.engadget.com/apple-watch-watchos-8-contacts-tips-mind-apps-170430824.html?src=rss_b2c
|
making |
2021-06-06 17:04:30 |
| ニュース |
ジェトロ ビジネスニュース（通商弘報） |
中国の研究院が世界の国家イノベーション指数発表、中国は14位 |
https://www.jetro.go.jp/biznews/2021/06/870075519907c90d.html
|
研究 |
2021-06-06 17:30:00 |
| ニュース |
ジェトロ ビジネスニュース（通商弘報） |
IEA、2021年の再エネ発電投資は前年比2.4％増との予測発表 |
https://www.jetro.go.jp/biznews/2021/06/301db455ee00f99b.html
|
発電 |
2021-06-06 17:20:00 |
| ニュース |
ジェトロ ビジネスニュース（通商弘報） |
欧州委、使い捨てプラスチック製品の流通禁止を前に指針発表 |
https://www.jetro.go.jp/biznews/2021/06/88299a30b5475ed7.html
|
使い捨て |
2021-06-06 17:10:00 |
| ニュース |
ジェトロ ビジネスニュース（通商弘報） |
政府が新たな景気刺激策の詳細公表 |
https://www.jetro.go.jp/biznews/2021/06/8289140c52ff73d0.html
|
景気刺激策 |
2021-06-06 17:10:00 |
| ニュース |
BBC News - Home |
Prince Harry and Meghan announce birth of baby girl |
https://www.bbc.co.uk/news/uk-57378117
|
lilibet |
2021-06-06 17:51:25 |
| ニュース |
BBC News - Home |
Covid-19: Government 'open' to delaying 21 June England lockdown end date |
https://www.bbc.co.uk/news/uk-57373933
|
england |
2021-06-06 17:21:41 |
| ニュース |
BBC News - Home |
French Open 2021: Serena Williams knocked out in fourth round by Elena Rybakina |
https://www.bbc.co.uk/sport/tennis/57377992
|
rybakina |
2021-06-06 17:56:35 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
メンバーの本音を引き出す リーダーの「1つの質問」 - 「よそ者リーダー」の教科書 |
https://diamond.jp/articles/-/272049
|
質問 |
2021-06-07 02:50:00 |
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