投稿時間:2022-06-19 21:24:20 RSSフィード2022-06-19 21:00 分まとめ(21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
AWS	lambdaタグが付けられた新着投稿 - Qiita	Flutter から Lambda を経由し Amazon Pinpoint で Push 通知を実装 ②	https://qiita.com/hirai-11/items/057aacd5c06db5c7f78c	amazonpinpoint	2022-06-19 20:52:49
js	JavaScriptタグが付けられた新着投稿 - Qiita	Flutter から Lambda を経由し Amazon Pinpoint で Push 通知を実装 ②	https://qiita.com/hirai-11/items/057aacd5c06db5c7f78c	amazonpinpoint	2022-06-19 20:52:49
AWS	AWSタグが付けられた新着投稿 - Qiita	Flutter から Lambda を経由し Amazon Pinpoint で Push 通知を実装 ②	https://qiita.com/hirai-11/items/057aacd5c06db5c7f78c	amazonpinpoint	2022-06-19 20:52:49
golang	Goタグが付けられた新着投稿 - Qiita	goでpluginパッケージを使う	https://qiita.com/yuta_vamdemic/items/615d5aa2f186341248aa	gitsubmodule	2022-06-19 20:42:05
golang	Goタグが付けられた新着投稿 - Qiita	WSLでEbitenGameJam用Go言語開発環境を構築	https://qiita.com/yuu-oka/items/ccc55c8c484cd36df962	ebiten	2022-06-19 20:23:07
golang	Goタグが付けられた新着投稿 - Qiita	【自己学習】Go言語を学ぶ(1)	https://qiita.com/tetusan/items/5739a02cdea2bd7776ec	google	2022-06-19 20:05:51
技術ブログ	Developers.IO	Azure App Service でカスタムドメインの asuid (TXTレコード)用の検証IDをCLIで取得する	https://dev.classmethod.jp/articles/app-service-custom-domain-asuid-cli/	azure	2022-06-19 11:24:40
海外TECH	Ars Technica	The race to produce green steel	https://arstechnica.com/?p=1861360	green	2022-06-19 11:15:14
海外TECH	Ars Technica	The 10 best games we physically played at Summer Game Fest, Tribeca	https://arstechnica.com/?p=1861645	dodgeball	2022-06-19 11:00:45
海外TECH	DEV Community	HOW THE BROWSER RENDERS PAGES AND STORES DATA	https://dev.to/joy_chiorlu/how-the-browser-renders-pages-and-stores-data-fo9	HOW THE BROWSER RENDERS PAGES AND STORES DATAWhen we talk about application architecture we usually refer to a wide range of factors that go into creating a website Building out your component model managing data and states handling routes and transitions and even rendering and loading your assets are all examples of this For a better comprehension of this article several terms will need to be explained First Contentful Paint FCP This is the time from the start of the page loading to the rendering of any part of the page s content on the screen Content refers to text images etc in this metric LCP Largest Contentful Paint Measures when the page s main content has finished loadingTTI Time to Interactive The time it takes for a webpage to become fully interactive To be fully interactive refers to when the page displays useful content Rendering This is a process in web development that turns website code into the interactive pages users see when they visit a website Rendering engines are also called browser engines Parsing Parsing means analyzing and converting a program into an internal format that a runtime environment can run Source from pingdom comLet s start from the basics how we locate the web page As a user once you input a request e g www abc com Your computer queries the name server DNS server which is the recursive name server it is set to use If you are new to the site a DNS look up is required The diagram above gives a simple illustration of a DNS look up but for better understanding Check here After this the IP will likely be cached we will look at the meaning later This speeds up subsequent requests by retrieving the IP address from the cache instead of contacting a name server again Once we have established a connection to a web server the browser sends an initial GET request on behalf of the user which for websites is often an HTML file It doesn t necessarily have to be an HTML file it could be images text etc Once the server receives the request it will reply with relevant response headers and the contents of the HTML Now we have gotten our web page HTML page from the server but how do we display it for our users to be able to see it on their browser While loading a web page a web browser sends a folder of files containing HTML CSS and JavaScript code to a users web browser The browser engine converts the data bytes into characters the HTML code It parses the characters into tokens which are further parsed into nodes The browser engine links the nodes into a tree like structure known as a Document Object Model DOM The DOM is the JavaScript representation of the HTML One of the reasons why JavaScript is referred to as the language of the web Simultaneously the browser converts the CSS code to the CSS object Model CSSOM through a similar process we shall be looking at that further An illustration of the process is shown below DOM Document Oriented Model The DOM is where all of the page s content is stored Because each HTML element has its own set of properties the Node object consists of various classes The Node object for the div element for example is made up of HTMLDivElement which inherits the Node class HTMLDivElement HTMLScriptElement Node and other built in classes are available in the browser After the browser has constructed Nodes from the HTML document it must arrange these node objects into a tree like structure Because our HTML components are nested inside each other in the HTML file the browser must reproduce this using Node objects it has previously built It will aid the browser s rendering efficiency For example We have the Html file article html as shown below We have the head and body tag the head tag divided into the meta and title tagThe body tag divided into h and pThe DOM tree becomes Let s have another example The DOM tree becomes I hope we can recognize the pattern here and be able to draw up our DOM tree we can also get that directly from the chrome console This link contains a tutorial CSSOM CSS Object Model The CSSOM has the webpage s styles When we create a site we desire to make it attractive And we do that by giving HTML elements styles CSS Cascading Style Sheets is responsible for styling the HTML elements on the HTML page We can target DOM elements with CSS selectors and set a value for a style property like color or font size There are other ways to add styles to HTML components including utilizing an external CSS file embedded CSS and so on If an HTML element s color and font size values are absent for example they inherit the value of the parent As a result you may envision having these characteristics on an HTML element and having them inherited by all of its children This is known as cascading styles which is why CSS stands for Cascading Style Sheets This is why the browser creates a CSSOM a tree like structure that uses CSS cascading rules to compute styles It operates o the same principle as the DOM tree However we it encounters a visibility block all children der that node would not be rendered during the creation of the CSSOM RENDER TREEThe render tree is the combination of the DOM and the CSSOM The browser has to calculate the layout of each visible element to paint them on the screen for that the browser uses the render tree Hence unless the Render tree is constructed nothing is going to get printed on the screen which is why we need both the DOM and CSSOM trees A render tree is a low level representation of what will eventually get printed on the screen Nodes that do not have pixels will not occupy space on the screen hence won t be present on the render tree However elements with visibility will be printed on the render tree E g any attribute with display none won t get printed on the render tree From the illustration below span and its children won t get printed on the screen Source from developers google comDOM CSSOM Render treeFor the first illustration with no CSS property of display none we have our web page printed out ResultHowever for the same code block but with the addition of the display none we have the following block of code ResultBrowser engine rendering flowLayout It is sometimes mistaken as reflow there is a little variation which will be explained later it takes into account the content and style received from the DOM and CSSOM and performs all necessary layout computing It s the procedure for determining the width height and location of all nodes in the render tree as well as the size and position of each object on the page Layout refers to the initial time the size and position of nodes are calculated whereas reflows refer to successive recalculations of node and placement Paint Painting the individual nodes on the screen is the final step in the rendering process The first incidence is referred to as FCP Each box calculated during the layout step is converted to actual pixels on the screen by the browser Rendering and LoadingRecall “While loading a web page a web browser sends a folder of files containing HTML CSS and JavaScript code to a user s web browser The browser engine converts the data bytes into characters the HTML code It parses the characters into tokens which are further parsed into nodes As soon as the parser reaches the line with lt link rel stylesheet href style css gt request is made to fetch the CSS file style css The DOM construction continues and as soon as the CSS file returns some content the CSSOM construction begins Now if we have a link to an external JS file or even an inline JS script what happens Well one of the things to remember is that once the browser encounters a script tag the DOM construction is paused The entire DOM construction process is halted until the script finishes executing With the CSSOM the JS execution waits no CSSOM no JS executionN B By default every script is a parser blocker The DOM construction will always be halted There s a way to change this default behavior though If you add the “async keyword or the “defer to the script tag the DOM construction will be continued and the script will be executed when it is done downloading directly We ve seen how the browser renders our webpages however if we want a site that performs well there are lots of things our browser takes into consideration We shall be looking at that in a subsequent article	2022-06-19 11:36:07
海外TECH	DEV Community	Day 1 of #100DaysOfCode	https://dev.to/carleii_dev/day-1-of-100daysofcode-12ii	Day of DaysOfCodeI can t wait to start with PHPoChow can i do to get a PHPoC IoT hardware platform CaParleDev PHP PHPtrends	2022-06-19 11:11:46
海外TECH	DEV Community	Proud to present you FakePowerShell , a Windows PowerShell clone built with Python.	https://dev.to/junaid_dev/proud-to-present-you-fakepowershell-a-windows-powershell-clone-built-with-python-1o16	Proud to present you FakePowerShell a Windows PowerShell clone built with Python Hi guys I m proud to present you my latest project FakePowerShell I have started this project with the purpose of learning funand how windows PowerShell works I put a lot of effort into it and I hope that you could like it and show some love by starring the project and following me on GitHub junaidcodingmaster Fake PowerShell This is a fake PowerShell with acts like a real power shell and works like a power shell but when we see which is real or fake we can t identify when you type ps maker that shows This is a Fake Power Shell that is fake power shell or it shows an error then this is real powershell Made by Junaid Fake PowerShellThis is a fake PowerShell with acts like a real power shell and works like a power shell but when we see which is real or fake we can t identify when you type ps maker that shows This is a Fake Power Shell that is fake power shell or it shows an error then this is real powershell Made by Junaid For Windows usersThey have Windows Terminal built in they want to create a new terminal profile with emty terminal profile Then they want to goto command line section and browse to cloned repository path and then select fakepowershell bat then save settings open new windows terminal window and click on that V and select fakePowerShell you got this fake power shell on anywhere at this cloned repository path If your terminal location show PS C WINDOWS system gt Change… View on GitHubI would be glad to hear your feedbacks about it Made By Junaid For more about this FakePowerShell goto gt	2022-06-19 11:04:56
ニュース	BBC News - Home	Rail strikes will punish innocent people, transport secretary says	https://www.bbc.co.uk/news/uk-61854567?at_medium=RSS&at_campaign=KARANGA	blame	2022-06-19 11:14:59
ニュース	BBC News - Home	Rail strike: When is it and which lines will be affected?	https://www.bbc.co.uk/news/business-61634959?at_medium=RSS&at_campaign=KARANGA	railway	2022-06-19 11:53:41
ニュース	BBC News - Home	Calvin Ramsay: Liverpool sign Aberdeen right-back for £4.2m	https://www.bbc.co.uk/sport/football/61857066?at_medium=RSS&at_campaign=KARANGA	initial	2022-06-19 11:42:57
ニュース	BBC News - Home	US Open: Matthew Fitzpatrick shares lead after day three	https://www.bbc.co.uk/sport/av/golf/61858066?at_medium=RSS&at_campaign=KARANGA	US Open Matthew Fitzpatrick shares lead after day threeWatch highlights as England s Matthew Fitzpatrick scores a two under on day three of the US Open to tie for the lead with American Will Zalatoris	2022-06-19 11:30:34
北海道	北海道新聞	十勝岳で山開き　高山植物楽しみながら頂上へ	https://www.hokkaido-np.co.jp/article/695480/	上富良野町	2022-06-19 20:24:00
北海道	北海道新聞	首相、中間層支援に全力　持続財政へ令和臨調発足	https://www.hokkaido-np.co.jp/article/695433/	構造改革	2022-06-19 20:10:19
北海道	北海道新聞	五輪金の須崎、志土地ら世界代表　レスリング全日本選抜	https://www.hokkaido-np.co.jp/article/695479/	世界選手権	2022-06-19 20:14:00
北海道	北海道新聞	群馬・桐生で３４・２度　高気圧影響、各地で真夏日	https://www.hokkaido-np.co.jp/article/695477/	日本列島	2022-06-19 20:07:00
北海道	北海道新聞	雄別鉄道走行したＳＬ、４７年ぶり復元　埼玉県内で３重連走行	https://www.hokkaido-np.co.jp/article/695467/	埼玉県内	2022-06-19 20:00:48