投稿時間:2022-02-05 15:11:04 RSSフィード2022-02-05 15:00 分まとめ(11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
TECH	Engadget Japanese	体内時計を調整して昼はアクティブ、夜はぐっすり。朝晩30分装着するだけ、睡眠眼鏡「Bioclock」	https://japanese.engadget.com/bioclock-eyeglasses-054528689.html	生活リズムが不規則な方におすすめなのが「Bioclockバイオクロック」睡眠眼鏡です。	2022-02-05 05:45:28
python	Pythonタグが付けられた新着投稿 - Qiita	Python DataFrameを縦方向に結合	https://qiita.com/kilowatt/items/970e4876d62523bd873e	PythonDataFrameを縦方向に結合DataFrameを縦方向に結合日々のデータを一定期間ごとにcsvで取得し、結合する場合を想定しています。	2022-02-05 14:18:04
js	JavaScriptタグが付けられた新着投稿 - Qiita	マークダウン形式文字列のコードブロック外に存在する特定の記号をサニタイズする。	https://qiita.com/sho_U/items/aae93bfb455ee983f709	マークダウン形式文字列のコードブロック外に存在する特定の記号をサニタイズする。	2022-02-05 14:44:52
js	JavaScriptタグが付けられた新着投稿 - Qiita	複数のpromiseをまとめて実行して、処理が終わってからなにかする	https://qiita.com/uedatakeshi/items/5d6be5af5709ac52e2a1	複数のpromiseをまとめて実行して、処理が終わってからなにかするどうもjavascriptの同期とか非同期の処理がわからなくて四苦八苦している。	2022-02-05 14:44:19
Ruby	Rubyタグが付けられた新着投稿 - Qiita	【厳選】Railsで管理画面開発をする時のおすすめライブラリ集	https://qiita.com/tikaranimaru/items/d5b42fa78772cbdcc192	オススメするほどかなと思いましたが、必ず使っているので星としました。	2022-02-05 14:38:11
Docker	dockerタグが付けられた新着投稿 - Qiita	Dockerとは	https://qiita.com/kazunoko1606/items/cc8a236fca5bb285dd18	Dockerとは本稿では、Dockerの概要、仮想マシンとの違いやDockerを使うメリット、Dockerに関する用語の解説をしています。	2022-02-05 14:10:50
Ruby	Railsタグが付けられた新着投稿 - Qiita	【厳選】Railsで管理画面開発をする時のおすすめライブラリ集	https://qiita.com/tikaranimaru/items/d5b42fa78772cbdcc192	オススメするほどかなと思いましたが、必ず使っているので星としました。	2022-02-05 14:38:11
海外TECH	DEV Community	A first look at React Query	https://dev.to/dailydevtips1/a-first-look-at-react-query-5b8a	A first look at React QueryState management can be a bit difficult in React the way you have to deal with data make sure it s cached re fetching it when needed and the list goes on Luckily for us this is exactly where react query comes in React query can handle all those and many more things for us For this first example we ll build a list with Pokemon names When we click on one of the names it loads that specific Pokemon s details The first time you ll see it will show a loading indicator but on a second return it s neatly cached and show the Pokemon right away Setting up the React Query project and dependenciesLet s get started as it s easier to explain as we go so you can see what will happen First let s create a new React project npx create react app react queryThen we ll need to install react query npm i react queryAnd while we are here let s also install axios to handle requests for us npm i axiosThat should give us a great starting point From here you can open up the project in your favorite terminal Using React queryWe ll have to wrap our app with the QueryClientProvider to use react query To do this open up the App js file and modify the app to look like this import QueryClient QueryClientProvider from react query const queryClient new QueryClient function App return lt QueryClientProvider client queryClient gt lt div gt Our app lt div gt lt QueryClientProvider gt Instead of this div we want to render a list of Pokemon that the user can then click on We ll use a state that will contain the Pokemon that was clicked so let s start by modifying our code to look like that function App const pokemon setPokemon useState null return lt QueryClientProvider client queryClient gt pokemon lt Pokemon pokemon pokemon setPokemon setPokemon gt lt PokemonList setPokemon setPokemon gt lt QueryClientProvider gt We defined a state and passed the state to either the Pokemon component or the PokemonList component Loading data with React queryLet s start with the list First of all we ll need a function that will be able to query an API We then wrap that query in a useQuery hook so react query can handle all the caching function usePokemonList return useQuery pokemon async gt const data await axios get limit return data results The first element that we pass to the useQuery hook is the key for this query In our case the key is pokemon Then we fetch Pokemon from our API and return the results And yes this simply wrapping of code will make sure react query does all the hard work for us Let me show you how we can use this function PokemonList setPokemon const isLoading data usePokemonList return lt div gt isLoading lt p gt loading lt p gt lt ul gt data map pokemon gt lt li gt lt a onClick gt setPokemon pokemon name href gt pokemon name lt a gt lt li gt lt ul gt lt div gt We use the Pokemon list function we just created in the component above We can extract isLoading and the actual data object from it Then we return a loading state while it s loading or else we render a list of Pokemon When the user clicks one of the Pokemon we invoke the setPokemon function to handle the state Retrieving single resultsNow that we have our list let s work on the Pokemon component This component should fetch a single Pokemon based on our state But before we do that we should create a new function that can request the API for the details function usePokemon name return useQuery pokemon name async gt const data await axios get name return data This is similar to what we saw in the list but we pass an extra attribute to the key property This will make this query unique for just this Pokemon request Let s move on to the actual component function Pokemon pokemon setPokemon const isLoading data usePokemon pokemon return lt div gt lt a href onClick gt setPokemon null gt Back to the list lt a gt isLoading lt p gt loading lt p gt lt div gt lt h gt pokemon lt h gt lt img src data sprites front default alt pokemon gt lt div gt lt div gt Here we use the function we just created and again show loading while it s still loading and render the Pokemon and an image once it s done And there you go This is how easy it can be to leverage react query to do all the heavy cache management for us I set up a Code Sandbox example you can play around with Note If it s already cached try to add v to the single Pokemon requests Thank you for reading and let s connect Thank you for reading my blog Feel free to subscribe to my email newsletter and connect on Facebook or Twitter	2022-02-05 05:39:16
ニュース	BBC News - Home	Newspaper headlines: Cabinet turmoil and more on the PM's birthday bash	https://www.bbc.co.uk/news/blogs-the-papers-60268000?at_medium=RSS&at_campaign=KARANGA	papers	2022-02-05 05:20:32
ニュース	BBC News - Home	GB's Ormerod misses out on slopestyle final	https://www.bbc.co.uk/sport/winter-olympics/60269728?at_medium=RSS&at_campaign=KARANGA	beijing	2022-02-05 05:06:11
北海道	北海道新聞	芥川賞作家の西村賢太さん死去　「苦役列車」「暗渠の宿」	https://www.hokkaido-np.co.jp/article/642253/	芥川賞作家	2022-02-05 14:02:00