投稿時間:2022-01-04 10:20:33 RSSフィード2022-01-04 10:00 分まとめ(23件)

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IT	ITmedia 総合記事一覧	[ITmedia エグゼクティブ] 帰宅難民「救いの足」シェアサイクル　大震災では課題も	https://mag.executive.itmedia.co.jp/executive/articles/2201/04/news028.html	itmedia	2022-01-04 09:45:00
IT	ITmedia 総合記事一覧	[ITmedia Mobile] 深澤直人氏が手掛けた最新スマホは“スーツケースデザイン”が特徴　realmeから	https://www.itmedia.co.jp/mobile/articles/2201/04/news027.html	itmediamobile	2022-01-04 09:19:00
TECH	Techable（テッカブル）	é­šăŽâ€œĺź•ăâ€ă‚’ĺ†çžă™ă‚‹ă€ŒăƒŞăƒ˘ăƒźăƒˆé‡Łă‚Šăƒ­ăƒœăƒƒăƒˆă€ă€éŤ˜é˝˘č€…ć–˝č¨­ĺ°Žĺ…ĽăŤĺ‘ă‘ăŚĺŽŸč¨źé–‹ĺ§‹	https://techable.jp/archives/170169	é­šăŽâ€œĺź•ăâ€ă‚ ĺ†çžăă‚‹ă€ŒăƒŞăƒ˘ăƒźăƒˆé‡Łă‚Šăƒ­ăƒœăƒƒăƒˆă€ă€éŤ˜é˝˘č€…ć ˝č¨­ĺ°Žĺ…ĽăŤĺ ă ăŚĺŽŸč¨źé ‹ĺ§‹ăƒŞă‚˘ăƒŤăƒăƒーăƒ†ă‚Łă‚Żă‚šćŠ€čĄ“ă‚ ĺżœç ¨ăーăŸé éš é‡Łă‚Šăƒ­ăƒœăƒƒăƒˆă€ŒTeleAnglerďźˆăƒ†ăƒŹă‚˘ăƒłă‚°ăƒŠăƒźďź‰ă€ă‚ é ‹çşăă‚‹Re alăŻă€ăƒ„ă‚Żă‚¤ăŽé‹ĺ śăă‚‹éŤ˜é˝˘č€…ĺ ă ć ˝č¨­ă¸ĺ°Žĺ…Ľăă‚‹ăŸă‚ăŽĺŽŸč¨źĺŽŸé¨“ă‚ é ‹ĺ§‹ăă‚‹ă¨çşčĄ¨ăーぞăーăŸă€‚ă„ă¤ă§ă‚‚ă€ăŠă“ă§ă‚‚ă€é‡Łă‚Š	2022-01-04 00:00:43
python	Pythonタグが付けられた新着投稿 - Qiita	Python Twitter APIを使わずにツイートを収集 2020年最新版	https://qiita.com/katafuchix/items/a0a8f03c0eef111350bb	hashtagsmediaurlsurllikesrelayretweetidcreatedatdatetimedatetimetzinfodatetimetimezoneutclangjatext月日大阪、日に東京でセミナー開催が決まりました詳細や申し込みは下記URLから。	2022-01-04 09:48:36
python	Pythonタグが付けられた新着投稿 - Qiita	Django個人メモ	https://qiita.com/Xudev/items/b4ca1e253d75db664829	Django個人メモDjango個人メモ初めての投稿です、至らないところもあるかと思いますが復習と整理も踏まえて書きます。	2022-01-04 09:28:12
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Angular キーイベント	https://teratail.com/questions/376537?rss=all	angular	2022-01-04 09:43:58
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	django httpリクエストの変換場所につきまして	https://teratail.com/questions/376536?rss=all	djangohttpリクエストの変換場所につきましてHTTPリクエストgtrequestdjnagoの仕組みに関して少し深堀してみようと思いまして、どのようにどこでHTTPのリクエストがHttpRequestオブジェクトrequestに変換されているのか調べてみたいと考えております。	2022-01-04 09:27:23
GCP	gcpタグが付けられた新着投稿 - Qiita	【GCP】App EngineとCloud Runの違い	https://qiita.com/gozikyu/items/17a9d51cb2962c9b32e5	CloudRunを「CaaS寄り」としているのは、CaaSはコンテナ管理機能までを提供しているサービスのことで、GCPではKubernetesEngineがこれに該当し、CloudRunは厳密にはCaaSではないから。	2022-01-04 09:22:23
Git	Gitタグが付けられた新着投稿 - Qiita	README.md の書き方の例	https://qiita.com/padawan_e15/items/0b60665e50ed1c791264	readmemd	2022-01-04 09:52:50
技術ブログ	Developers.IO	DatahubのBusiness Glossary(Term)について	https://dev.classmethod.jp/articles/datahub-term/	businessglossary	2022-01-04 00:42:40
海外TECH	Ars Technica	“Virtual unwrapping” lets us peek inside Amenhotep I’s 3,000-year-old mummy	https://arstechnica.com/?p=1821925	teeth	2022-01-04 00:53:40
海外TECH	DEV Community	Top 10 Most Popular JavaScript Frameworks for 2022	https://dev.to/virendebro/top-10-most-popular-javascript-frameworks-for-2022-51b5	Top Most Popular JavaScript Frameworks for Top Most Popular JavaScript Frameworks for In this blog we are going to see top most popular JavaScript Frameworks for Here are the best JavaScript frameworks that you can consider in the year for developing software applications So lets Start ReactAngularVueExpressEmberMeteorBackboneMithrilNodeSvelte You can read the whole blog hereClick Here to see this post in detailed Thankyou	2022-01-04 00:50:37
海外TECH	DEV Community	Testing Interactions with other Smart Contracts	https://dev.to/focusedlabs/testing-interactions-with-other-smart-contracts-2m7c	Testing Interactions with other Smart ContractsDeveloping on the blockchain is an incredible experience The ecosystem is open and permissionless each project becoming a lego brick in whatever idea a developer has in mind Because of the open nature of the blockchain it s not uncommon to have your smart contracts interact with another project s contracts It may be a Chainlink Oracle a Dex like Uniswap or a Lending platform like the QiDAO or maybe you interact with all three in a single contract But how do you test your contract based on responses and interactions with these external contracts There are two ways you can deploy mock contracts or you can use a mocking library There are tradeoffs but for this post I am going to focus on using a Smock s mocking library to put external contracts into a place for testing Smock depends on Hardhat so you need to have a Hardhat project For the sake of this post let s write and test a smart contract that can liquidate a loan on the QiDAO The QiDAO contracts can be found in their docs and the source can be found on their github Specifically we will be using the ercStablecoin contract deployed for LINK xEbDAdaEcBFEcAEOur simple liquidation contract looks like this contract LoanLiquidator address const vaultAddress xEbDAdaEcBFEcAE function liquidate uint vaultId external ercStablecoin vault ercStablecoin vaultAddress require vault checkLiquidation vaultId Vault not below liquidation threshold vault liquidateVault vaultId For simplicity let s test the two cases of checkLiquidation as liquidateVault doesn t return anything First we will test but there is a gotcha We can get into that later describe LoanLiquidator gt describe liquidate gt it should revert if the vault cannot be liquidated it call the vaults liquidateVault if the loan can be liquidated If we aren t using Smock then this is pretty difficult I would either need to inject a contract address into the LoanLiquidator and then have that address implement ercStablecoin s interface That s for another blog post In this post it s a lot simpler because we will use Smock but there are limitations First let s focus on it should revert if the vault cannot be liquidated it should revert if the vault cannot be liquidated async gt const VAULT ADDRESS xEbDAdaEcBFEcAE I am using Typechain to generate types for the ercStablecoin ABI const fake await smock fake lt ErcQiStablecoin gt ErcQiStablecoin abi address VAULT ADDRESS fake checkLiquidation returns false const LoanLiquidatorFactory await ethers getContractFactory LoanLiquidatator as LoanLiquidator factory const loanLiquidator await LoanLiquidatatorFactory deploy await loanLiquidator deployed await expect loanLiquidator liquidate to be revertedWith Vault not below liquidation threshold expect fake liquidateVault not to have been called The magic here lies in the opts for Smock s fake method You can pass an existing contract address to fake and Smock will use Hardhat s hardhat setCode hardhat setcode rpc call to replace the contract at the address given with Smock s fake implementation of the contract Next lets test it call the vaults liquidateVault if the loan can be liquidated it call the vaults liquidateVault if the loan can be liquidated async gt const VAULT ADDRESS xEbDAdaEcBFEcAE I am using Typechain to generate types for the ercStablecoin ABI const fake await smock fake lt ErcQiStablecoin gt ErcQiStablecoin abi address VAULT ADDRESS fake checkLiquidation returns true const LoanLiquidatorFactory await ethers getContractFactory LoanLiquidatator as LoanLiquidator factory const loanLiquidator await LoanLiquidatorFactory deploy await loanLiquidator deployed await expect loanLiquidator liquidate not to be reverted expect fake liquidateVault to have been called In this case you ll get green lights and you can keep on coding In the real world there s a gotcha When you fake a contract you fake all of it By default functions will now return their Zero value If you have calls to later in your implementation that require non zero values A clear example of this is if we add the method getVaultAddress to our LoanLiquidator contract function getVaultAddress public view returns address return vaultAddress Now in test after faking if you call getVaultAddress you will get the zero address x If you had code that used the returned address you may see an error like Error Transaction reverted function call to a non contract accountThis just scratches the surface of what s possible with Smock and Solidity The Web space is one of the most test driven development friendly and open ecosystems I have ever encountered If you re interested in TDD writing great software and developing cutting edge technology don t hesitate to check out our careers page Or if you re looking for a partner to help build your next dApp backend or frontend and up skill your team please reach out to us at workwith focus com	2022-01-04 00:34:51
海外TECH	DEV Community	Advanced JavaScript Series - Part 1: Execution Context and Call Stack	https://dev.to/pranav016/advanced-javascript-series-part-1-execution-context-and-call-stack-l1o	Advanced JavaScript Series Part Execution Context and Call Stack Execution Context Execution context is the environment that enables JavaScript code to execute It decides which piece of code currently gets access to all the functions variables and objects used in the code for its execution In this the code gets evaluated line by line variables amp objects etc get stored in the Memory heap that are then used during the execution of that piece of code thus forming an environment that enables execution of the JS code Call Stack Execution Stack Call Stack is a data structure that maintains the list of the functions being called and executed the execution context currently being executed by the JavaScript engine It follows a LIFO Last In First Out principle meaning that the last function called gets to the top of the call stack and once execution is finished it pops from the stack Note Natively JavaScript is a single threaded synchronous programming language check reference and in case of doubt It means that when a script is run the JS engine runs the code line by line beginning at the top and working its way down As a result the JavaScript engine only has one call stack and can only perform one action at a time Relation between Execution Context and Call Stack When the execution of the JavaScript code starts a Global Execution context is created and pushed onto the Call Stack This Global Execution context can be seen in your Chrome browser in the form of the window object and in Node js we can find the same in the form of the global object Every function once called for execution generates an execution context that then gets pushed to the top of the call stack thus getting in line to get the access to all the resources variables functions objects required for its execution After the execution of all the functions in the code is complete the Global Execution context is also popped off the call stack Types of Execution Context Global Execution Context It is the base or the default execution context Any code that is not present inside any function is said to be inside the Global Execution context that is why we are able to access them using the window object It also provides us with the this keyword to help reference the window object Create a memory heap in order to store variables and function references Stores all the function declarations in the memory heap and the variables in the Global Execution context with its initial values as undefined Functional Execution Context These are created for every function call thus unlike Global Contexts we can have multiple Functional Execution contexts They can access all the code of the Global Context but the Global Context cannot access the code of the Functional Execution context Eval Execution Context Any code executed via the eval function has its own executional context Creating an Execution Context Creation Phase Task Creation of Activation Variable objectThe activation object is like a memory unit container for storing the variables objects etc related to a function Task Creation of Scope ChainScope chain is the list of variables and objects created within a particular function Once the scope chain is formed it helps initialize value of this Execution Phase The JS engines scan over the function in the code one more time updating the variable object with the values of the variables and then running the code What is Stack Overflow Call Stack Overflow Stack overflow occurs when the call stack becomes full can fit no more function calls or contexts This may occur when a recursive function is run with no exit point and the function exceeds the storage limit of the call stack Storage of the call stack is dependent on the host environment the web browser or the Node js env References utm medium coursecontent call stack memory heap alexandrawilll javascript execution context call stack and event queue dbdf text Every line of code in JS has an execution context amp text When a function executes C an off of the call stack	2022-01-04 00:02:22
Apple	AppleInsider - Frontpage News	Oral-B debuts three new iPhone-connected iO smart toothbrushes	https://appleinsider.com/articles/22/01/03/oral-b-debuts-three-new-iphone-connected-io-smart-toothbrushes?utm_medium=rss	Oral B debuts three new iPhone connected iO smart toothbrushesAt the Consumer Electronics Show Oral B debuted three new smart toothbrushes dedicated to helping users improve the health of their teeth and gums with real time feedback and on device pressure control ーand brought back the Cavity Creeps Oral B initially launched the iO line in to help users achieve superior at home cleaning Oral B iO brushes achieve this through D brushing recognition pressure control and a built in brushing timer According to Oral B iO users involved in a clinical trial experienced Read more	2022-01-04 00:49:46
海外TECH	Engadget	Theranos founder Elizabeth Holmes is found guilty of defrauding investors	https://www.engadget.com/elizabeth-holmes-theranos-trial-verdict-guilty-fraud-001725594.html?src=rss	Theranos founder Elizabeth Holmes is found guilty of defrauding investorsElizabeth Homes the former CEO and founder of Theranos has been found guilty on charges of wire fraud and conspiracy to commit wire fraud Holmes faces up to years in prison for defrauding investors in her blood testing startup The verdict comes after a months long trial and more than three years after she was first charged and forced to step down as CEO in Of the total charges Holmes was found guilty on four conspiracy to defraud investors and three counts of wire fraud against individual investors She was found not guilty on four additional charges including one count of conspiracy to defraud patients two counts of fraud against investors and one count of wire fraud stemming from ads Theranos ran in Arizona The jury was deadlocked on three other counts of wire fraud and returned no verdict on those charges During the trial Holmes lawyers tried to portray her as a young and inexperienced entrepreneur “Elizabeth Holmes worked herself to the bone for years trying to make lab testing more affordable one of Holmes attorneys said in opening arguments “She failed …but failure is not a crime Holmes who testified during the trial said she hadn t intended to mislead the public or investors and had been advised to protect the company s “trade secrets As The New York Times pointed out she “spent much of her testimony arguing that others at Theranos were responsible for the company s shortcomings The prosecution alleged that Holmes knew about serious flaws in the company s technology and hid the issues from investors Former patients who had received inaccurate blood tests also testified including an Arizona woman who received an incorrect result for an HIV test and a woman who was misdiagnosed with a miscarriage Holmes story has been a source of widespread fascination even for those outside of Silicon Valley At its peak Theranos was valued at more than billion and had a board of directors filled with former high ranking government officials including two former Secretaries of State Henry Kissinger and George Shultz Holmes who had dropped out of Stanford to start the company regularly appeared on magazine covers and was often compared to Steve Jobs and other iconic founders Holmes herself was reportedly infatuated with Jobs and adopted his signature black turtlenecks Former Wall Street Journal reporter John Carreyrou was the first to report on issues with Theranos technology in and his coverage prompted multiple investigations and lawsuits that ultimately resulted in criminal charges for Holmes and former COO Ramesh “Sunny Balwani On the stand Holmes testified that her romantic relationship with Balwani had been abusive Balwani s trial is scheduled to begin in February There has been no shortage of pop culture depictions of Holmes After Carreyrou s best seller Bad Blood there was an HBO documentary and several podcasts about Theranos rise and ultimate downfall Hulu is set to debut a new miniseries about the saga with Amanda Seyfried starring as Holmes in March And Apple recently nabbed the Jennifer Lawrence led film adaptation of Bad Blood Holmes who will likely appeal the charges could face up to years in prison though it s not yet clear when she will be sentenced nbsp Developing…	2022-01-04 00:17:25
金融	ニッセイ基礎研究所	無理数について（その３）－無理数はどのようなところに現れてくるのか－	https://www.nli-research.co.jp/topics_detail1/id=69793?site=nli	問題立方体倍積問題与えられた立方体の辺の長さをとすると、求めたい立方体の辺の長さXは、Xということになるが、これは次方程式であることから、上記の条件を満たしていない。	2022-01-04 09:54:56
金融	日本銀行：RSS	庶務職員（自動車運転員）の募集について	http://www.boj.or.jp/announcements/release_2022/rel220104b.htm	運転	2022-01-04 10:00:00
ニュース	BBC News - Home	Elizabeth Holmes: Theranos founder convicted of fraud	https://www.bbc.co.uk/news/world-us-canada-59734254?at_medium=RSS&at_campaign=KARANGA	elizabeth	2022-01-04 00:41:42
ニュース	BBC News - Home	Prince Andrew accuser’s 2009 deal with Jeffrey Epstein made public	https://www.bbc.co.uk/news/uk-59861831?at_medium=RSS&at_campaign=KARANGA	defendant	2022-01-04 00:10:55
LifeHuck	ライフハッカー［日本版］	｢駆け出す前に書き出せ｣ 思考を深める“メモ”の力と可能性	https://www.lifehacker.jp/2022/01/248331memo_tategami1.html	特集	2022-01-04 10:00:00
マーケティング	MarkeZine	D2Cの「本質」と「裏」を読み解く、3つの視点	http://markezine.jp/article/detail/38037	bicpmadmanreport	2022-01-04 09:30:00
海外TECH	reddit	KENDALL is OUT with 54.79% of the votes!	https://www.reddit.com/r/SuccessionTV/comments/rvfzmt/kendall_is_out_with_5479_of_the_votes/	KENDALL is OUT with of the votes submitted by u fra to r SuccessionTV link comments	2022-01-04 00:01:44