投稿時間:2023-03-21 16:15:16 RSSフィード2023-03-21 16:00 分まとめ(18件)

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TECH Techable(テッカブル) オンライン注文した商品を駅で受け取れる!JR西日本がスマートロッカーを用いた実証実験を開始 https://techable.jp/archives/200509 pikuraku 2023-03-21 06:00:36
python Pythonタグが付けられた新着投稿 - Qiita Redmineチケット情報を取得するスクリプト https://qiita.com/bataxxx/items/968c4485bc545bba8d2a csvimportrequestsredmine 2023-03-21 15:59:40
python Pythonタグが付けられた新着投稿 - Qiita python maya cleanup scene https://qiita.com/aizwellenstan/items/7dd4edf2a1c752b95bf3 multi 2023-03-21 15:29:13
python Pythonタグが付けられた新着投稿 - Qiita 進数変換ツールを作ってみた。 https://qiita.com/yutaka_m/items/5786318125f200077057 flask 2023-03-21 15:29:13
js JavaScriptタグが付けられた新着投稿 - Qiita アロー関数でコンストラクタを書いたら「TypeError: HogeClass is not a constructor」と言われてしまった件 https://qiita.com/skanno/items/a43f384e8e18f4d5ba14 amethisclassnameclassname 2023-03-21 15:00:32
Ruby Rubyタグが付けられた新着投稿 - Qiita Rails Heroku デプロイ エラー ① https://qiita.com/RikutoMatsumoto/items/008fa8b6110cb70a6329 heroku 2023-03-21 15:44:50
AWS AWSタグが付けられた新着投稿 - Qiita EC2にIAM roleの付与なしでSysmtemManagerを使ってみた https://qiita.com/yuichi_hinata/items/702c3565bb5422fecea1 ecrole 2023-03-21 15:59:03
Docker dockerタグが付けられた新着投稿 - Qiita Dockerで遊んで、Docker構築を身近なものにする! https://qiita.com/SNobu/items/9b1c6bf74a3ff1472632 docker 2023-03-21 15:39:37
Git Gitタグが付けられた新着投稿 - Qiita 【Git】mergeのやり方 https://qiita.com/LB16B/items/b1e4600ed148c3ff1808 gitcheckoutmainmerge 2023-03-21 15:46:34
Ruby Railsタグが付けられた新着投稿 - Qiita Rails Heroku デプロイ エラー ① https://qiita.com/RikutoMatsumoto/items/008fa8b6110cb70a6329 heroku 2023-03-21 15:44:50
海外TECH DEV Community Lexical Scoping vs Closures https://dev.to/souravbandyopadhyay/lexical-scoping-vs-closures-52cd Lexical Scoping vs ClosuresLexical scoping and closures are related concepts in programming but they are not the same thing Here s a brief explanation of each Lexical scoping refers to the way a programming language determines how variables are scoped i e how they are accessible or not based on their position in the code In a lexically scoped language like JavaScript a variable declared inside a function is only accessible within that function and any nested functions within it The outer scope such as the global scope cannot access those variables function outer let x function inner console log x inner outer Output In this example we have a function outer that declares a variable x and a nested function inner that logs the value of x to the console When we call outer it calls inner which is able to access the variable x because of lexical scoping Since x is declared in the outer function it is accessible to the inner function and can be logged into the console Closures A closure is a function that has access to variables in its lexical scope even after that scope has exited In other words a closure closes over the variables it needs from its outer scope and maintains a reference to them even if those variables would otherwise be inaccessible This can be useful for creating private variables or for preserving state across function calls function outer let x function inner console log x return inner let closureFunc outer closureFunc Output In this example we have the same outer and inner functions as before but this time we re returning the inner function from outer and assigning it to a variable closureFunc When we call closureFunc it logs the value of x to the console just like before However the difference here is that inner has access to the variable x even after outer has finished executing Thanks to the concept of closures In other words inner closes over the variable x and maintains a reference to it even though outer has finished executing Closures are possible in languages with lexical scoping but not all languages with lexical scoping have closures In JavaScript for example closures are commonly used to create private variables and functions and to preserve state in asynchronous code 2023-03-21 06:31:59
海外TECH Engadget Duolingo is building a music learning app https://www.engadget.com/duolingo-is-building-a-music-learning-app-065408671.html?src=rss Duolingo is building a music learning appYou most likely know Duolingo as an app you can fire up when you want to learn a new language or at least familiarize yourself with the local tongue of a place you re visiting It has ventured into other subject matters over the years though and now it looks like the company is also hoping to be the one people turn to when they want to learn about music According to a job posting seen by TechCrunch Duolingo has a small team that s currently working to build an app for teaching music nbsp The job ad is for an quot expert in music education who combines both theoretical knowledge of relevant learning science research and hands on teaching experience quot Whoever gets the job will be in charge of making sure that the app is quot well grounded in learning science quot They have to translate quot research findings into concrete ideas quot that can be used for quot learning by doing quot activities that Duolingo is known for They also have to take the lead on curriculum development which signifies that the app is still in its very early stages nbsp If and when Duolingo s Music app comes out it will join the company s growing list of learning applications that include its ABC app which teaches kids how to read and write It also has an English Test app for language certification and a Math app that uses colorful animations and interactive exercises to help people learn multiplication division fractions geometry and measurements As TechCrunch notes the company is most likely diversifying to ensure its survival and income growth in the future And its plan seems to be working so far In its earnings report PDF for the fourth quarter of Duolingo revealed that it enjoyed a percent increase in paid subscribers from the year before nbsp This article originally appeared on Engadget at 2023-03-21 06:54:08
海外ニュース Japan Times latest articles Pressure on for skaters as championships return to Japan https://www.japantimes.co.jp/sports/2023/03/21/figure-skating/skating-saitama-championships/ respective 2023-03-21 15:20:34
ニュース BBC News - Home Met Police: Women and children failed by 'boys' club', review finds https://www.bbc.co.uk/news/uk-65015479?at_medium=RSS&at_campaign=KARANGA baroness 2023-03-21 06:48:26
ニュース BBC News - Home US urges Xi to press Putin over 'war crimes' in Ukraine https://www.bbc.co.uk/news/world-europe-65022366?at_medium=RSS&at_campaign=KARANGA moscow 2023-03-21 06:49:45
ニュース BBC News - Home £100m boost for biggest UK hydro scheme in decades https://www.bbc.co.uk/news/uk-scotland-highlands-islands-65015217?at_medium=RSS&at_campaign=KARANGA periods 2023-03-21 06:13:00
ニュース BBC News - Home Women's Six Nations 2023: England captain Sarah Hunter to retire after record-breaking career https://www.bbc.co.uk/sport/rugby-union/65013600?at_medium=RSS&at_campaign=KARANGA Women x s Six Nations England captain Sarah Hunter to retire after record breaking careerCaptain Sarah Hunter will retire after England s opening Women s Six Nations match against Scotland in her home city of Newcastle on Saturday 2023-03-21 06:09:35
ニュース BBC News - Home Lucy Bronze & Keira Walsh: Barcelona pushing England duo to greater heights https://www.bbc.co.uk/sport/football/65014106?at_medium=RSS&at_campaign=KARANGA Lucy Bronze amp Keira Walsh Barcelona pushing England duo to greater heightsEngland duo Lucy Bronze and Keira Walsh say they have noticed massive improvements in their game since moving to Barcelona from Man City 2023-03-21 06:22:30

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