投稿時間:2021-12-23 02:45:01 RSSフィード2021-12-23 02:00 分まとめ(53件)

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python	Pythonタグが付けられた新着投稿 - Qiita	Taitanicやってみた	https://qiita.com/CurieWeiss/items/ae616a65d97d8d1842da	Taitanic やっ て み た はじめ に こんにちは 。	2021-12-23 01:52:44
python	Pythonタグが付けられた新着投稿 - Qiita	ニューラルネットワークにおけるOptunaを用いたハイパーパラメータチューニング	https://qiita.com/__retriever__/items/1f6d0c301455195424b5	このように、Optunaでのハイパーパラメータチューニングの際に、中間層の数とノード数を最適化したいため、このように定義しています。	2021-12-23 01:51:21
python	Pythonタグが付けられた新着投稿 - Qiita	VSCode用の言語サーバ拡張機能をPythonでつくってみた	https://qiita.com/www-tacos/items/23e63c4572c9f52b9825	なのでエディタは「ドキュメントを編集したらこのメソッドを言語サーバに送信する」という処理を実装すれば言語サーバのドキュメント変更時の処理を動かせる言語サーバはこのメソッドを受け取ったらドキュメント変更時の処理を実行すればよいという風にエディタとサーバそれぞれで必要な処理を実装すればドキュメント変更時の機能が利用できます。	2021-12-23 01:28:39
js	JavaScriptタグが付けられた新着投稿 - Qiita	IDs in Node.js	https://qiita.com/martinheidegger/items/09c48c50136b629f1107		2021-12-23 01:26:10
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	HTML/CSS 画像でマスクした画像とテキスト群の横並び　マスクした画像の幅が変わらない　テキストの上下の余白が開き過ぎる	https://teratail.com/questions/375152?rss=all	その中で、アメーバ状の画像でマスクした画像が左側に、テキスト群が右側にという横並びがあります。	2021-12-23 01:56:06
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	WordPressのカスタム投稿で作ったカテゴリー≪Taxonomy≫ ので複数の≪Term≫があってもリンク付きで反映させるには？	https://teratail.com/questions/375151?rss=all	WordPressのカスタム投稿で作ったカテゴリー≪Taxonomy≫ので複数の≪Term≫があってもリンク付きで反映させるには実現させたいことWordPressのカスタム投稿でカテゴリーを作る際≪Taxonomy≫の理解が必要になってきます。	2021-12-23 01:49:52
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	unity c# 画像を表示したいが裏に隠れる	https://teratail.com/questions/375150?rss=all	addcomponent	2021-12-23 01:38:50
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	rangeで呼び出した値を用いてグラフを描きたい	https://teratail.com/questions/375149?rss=all		2021-12-23 01:18:01
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	実行可能な処理が残っているのにも関わらず処理が終了する	https://teratail.com/questions/375148?rss=all	実行可能な処理が残っているのにも関わらず処理が終了する前提・実現したいことMusicクラスのplay、もしくはloopを実行した際にYTDLSourcefromurl以降を処理したい。	2021-12-23 01:14:44
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	【Git】リモートリポジトリの不要な変更履歴を削除したい。	https://teratail.com/questions/375147?rss=all	【Git】リモートリポジトリの不要な変更履歴を削除したい。	2021-12-23 01:13:13
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	AWSでDocker認証を行いたい・・	https://teratail.com/questions/375146?rss=all	AWSでDocker認証を行いたい・・前提・実現したいことAWSコンテナ作成のハンズオンをしており、ECRにコンテナイメージを登録しようとしています。	2021-12-23 01:08:55
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	rubyでのopenについて	https://teratail.com/questions/375145?rss=all	rubyでのopenについてrubynbsponnbsprailsで開発したアプリケーションにrubocopを導入し、offencesの排除を行っています。	2021-12-23 01:07:55
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Rubyで配列処理	https://qiita.com/noytdm1021/items/648d4c42f5399aee40be	Rubyで配列処理each単純な繰り返し処理samplerbnumberssumnumberseachdonumsumnumendpsumgtdeleteif配列を回し、各要素を評価。	2021-12-23 01:38:40
Azure	Azureタグが付けられた新着投稿 - Qiita	Azure Database for Postgre（単一サーバ）に対してPgpoolを使ってコネクションプーリング	https://qiita.com/kuma_matsu/items/316e9fafd19d00df6644	AzureDatabaseforPostgreSQLには単一サーバとフレキシブルサーバというデプロイモードがありますが、年月日時点でフレキシブルサーバはプレビュー段階ですので、本番環境ではまだ利用が推奨されていません。	2021-12-23 01:20:11
海外TECH	Ars Technica	LG’s 16:18 ultra-tall monitor means less scrolling	https://arstechnica.com/?p=1822184	scrollinglg	2021-12-22 16:48:04
海外TECH	Ars Technica	SEC rejects Apple’s bid to block three shareholder proposals	https://arstechnica.com/?p=1822224	annual	2021-12-22 16:45:04
海外TECH	Ars Technica	AWS suffers third outage of the month	https://arstechnica.com/?p=1822213	slack	2021-12-22 16:32:43
海外TECH	Ars Technica	A fossil site reveals an ancient sinkhole and its enormous occupant	https://arstechnica.com/?p=1820283	mastodon	2021-12-22 16:09:45
海外TECH	MakeUseOf	Learn How to Manage Remote Connections via SSH	https://www.makeuseof.com/learn-how-to-manage-remote-access-via-ssh/	connections	2021-12-22 16:30:12
海外TECH	DEV Community	My first contribution to prometheus	https://dev.to/mtfoley/my-first-contribution-to-prometheus-np1	My first contribution to prometheusSeveral weeks ago I joined Virtual Coffee and I really love that community I shared during one of the weekly sessions that I was hoping to learn some more about backend by contributing to open source software One of the more seasoned members suggested that I try contributing to prometheus prometheus Taken from the description on the repo Prometheus a Cloud Native Computing Foundation project is a systems and service monitoring system It collects metrics from configured targets at given intervals evaluates rule expressions displays the results and can trigger alerts when specified conditions are observed As I started looking at the project issues I didn t find many good first issues that I personally felt comfortable with so I decided to take advantage that I had a completely fresh set of eyes on the project As I followed along with the Getting Started guide something immediately jumped out at me When opening http localhost metrics and opening the Metrics Explorer I was presented with a really long list of metrics that I could view the time series data for I thought to myself with such a long list it would be nice if there was a search field I opened an issue about this and then a subsequent pull request Here s a screenshot of at least the first iteration of what I implemented This project uses Developer Certificate of Origin DCO as one of the checks it does for PR This makes sure that all commits are signed off to include the contributors name and email address I learned the hard way about amending commits and using git commit s to sign off commits Beyond that the reviewer GitHub user juliusv was very friendly and engaging and asked me to implement the use of Fuzzy search with nexucis fuzzy which had been used on an adjacent component I was also able to add appropriate tests for the new component Since this PR I ve gotten a couple more merged to the project including some contribution to the Go codebase so I m starting to dig into the backend side which is what I had wanted to do Cover image by Timon Wanner Picked it on account of the story of Prometheus	2021-12-22 16:41:41
海外TECH	DEV Community	Let’s Give Your Realm-Powered Ionic Web App the Native Treatment on iOS and Android!	https://dev.to/dfreniche/lets-give-your-realm-powered-ionic-web-app-the-native-treatment-on-ios-and-android-12ln	Let s Give Your Realm Powered Ionic Web App the Native Treatment on iOS and Android Realm is an open source easy to use local database that helps mobile developers to build better apps faster It offers a data synchronization serviceーMongoDB Realm Syncーthat makes it simple to move data between the client and MongoDB Atlas on the back end Using Realm can save you from writing thousands of lines of code and offers an intuitive way to work with your data The Ionic team posted a fantastic article on how you can use Ionic with Realm to build a React Web app quickly taking advantage of Realm to easily persist your data in a MongoDB Atlas Database After cloning the repo and running ionic serve you ll have a really simple task management web application You can register using any user password combination Realm takes care of your onboarding needs You can log in have a look at your tasks and add new tasks Login in the Web AppBrowsing TasksLet s build on what the Ionic team created for the web and expand it by building a mobile app for iOS and Android using one of the best features Ionic has the “Write Once Run Anywhere approach to coding I ll start with an iOS app PrerequisitesTo follow along this post you ll need five things A macOS powered computer running Xcode to develop for iOS I m using Xcode Beta You don t have to risk your sanity Ionic installed You can follow the instructions here but TL DR it s npm install g ionic cliClone the repo with the Ionic React Web App that we ll turn into mobile As we need an Atlas Database to store our data in the cloud and a Realm app to make it easy to work with Atlas from mobile set up a Free Forever MongoDB cluster and create and import a Realm app schema so everything is ready server side Once you have your Realm app created copy the Realm app ID from the MongoDB admin interface for Realm and paste it into src App tsx in the line export const APP ID lt Put your Realm App Id here gt Once your APP ID is set run npm run build The iOS appTo add iOS capabilities to our existing app we need to open a terminal and run ionic cap add iosThis will create the iOS Xcode Project native developers know and love with the code from our Ionic app I ran into a problem doing that and it was that the version of Capacitor used in the repo was but for iOS I needed at least So I just changed package json and ran npm install to update Capacitor package json fragment dependencies apollo client capacitor android capacitor app capacitor core capacitor haptics capacitor ios Now we have a new ios directory If we enter that folder we ll see an App directory that has a CocoaPods powered iOS app To run this iOS app we need to Change to that directory with cd ios You ll find an App directory cd AppInstall all CocoaPods with pod repo update amp amp pod install as usual in a native iOS project This updates all libraries caches for CocoaPods and then installs the required libraries and dependencies in your project Open the generated App xcworkspace file with Xcode From Terminal you can just type open App xcworkspace Run the app from Xcode Login in the iOS AppBrowsing TasksThat s it Apart from updating Capacitor we only needed to run one command to get our Ionic web project running on iOS The Android AppHow hard can it be to build our Ionic app for Android now that we have done it for iOS Well it turns out to be super simple Just cd back to the root of the project and type in a terminal ionic cap androidThis will create the Android project Once has finished launch your app using ionic capacitor run android l host In this case is my own IP address As you can see if you have more than one Emulator or even a plugged in Android phone you can select where you want to run the Ionic app Once running you can register log in and add tasks in Android just like you can do in the web and iOS apps Adding a task in AndroidBrowsing Tasks in AndroidThe best part is that thanks to the synchronization happening in the MongoDB Realm app every time we add a new task locally it gets uploaded to the cloud to a MongoDB Atlas database behind the scenes And all other apps accessing the same MongoDB Realm app can show that data Automatically refreshing tasksRealm SDKs are well known for their syncing capabilities You change something in the server or in one app and other users with access to the same data will see the changes almost immediately You don t have to worry about invalidating caches writing complex networking multithreading code that runs in the background listening to silent push notifications etc MongoDB Realm takes care of all that for you But in this example we access data using the Apollo GraphQL Client for React Using this client we can log into our Realm app and run GraphQL Queriesーalthough as designed for the web we don t have access to the hard drive to store a realm file It s just a simpler way to use the otherwise awesome Apollo GraphQL Client with Realm so we don t have synchronization implemented But luckily Apollo GraphQL queries can automatically refresh themselves just passing a pollInterval argument I told you it was awesome You set the time interval in milliseconds to refresh the data So in useTasks ts our function to get all tasks will look like this auto refreshing our data every half second function useAllTasksInProject project any const data loading error useQuery gql query GetAllTasksForProject partition String tasks query partition partition id name status variables partition project partition pollInterval if error throw new Error Failed to fetch tasks error message If the query has finished return the tasks from the result data Otherwise return an empty list const tasks data tasks return tasks loading Pull to refreshAdding automatic refresh is nice but in mobile apps we re used to also refreshing lists of data just by pulling them To get this we ll need to add the Ionic component IonRefresher to our Home component lt IonPage gt lt IonHeader gt lt IonToolbar gt lt IonTitle gt Tasks lt IonTitle gt lt IonButtons slot end gt lt IonButton onClick addNewTask gt lt IonIcon slot icon only icon add gt lt IonIcon gt lt IonButton gt lt IonButtons gt lt IonToolbar gt lt IonHeader gt lt IonContent fullscreen gt lt IonRefresher slot fixed onIonRefresh doRefresh gt lt IonRefresherContent gt lt IonRefresherContent gt lt IonRefresher gt lt IonHeader collapse condense gt lt IonToolbar gt lt IonTitle size large gt Tasks lt IonTitle gt lt IonToolbar gt lt IonHeader gt lt IonList gt loading lt IonLoading isOpen loading gt null tasks map task any gt lt TaskItem key parseInt task id task gt lt TaskItem gt lt IonList gt lt IonContent gt lt IonPage gt As we can see an IonRefresher component will add the pull to refresh functionality with an included loading indicator tailored for each platform lt IonRefresher slot fixed onIonRefresh doRefresh gt lt IonRefresherContent gt lt IonRefresherContent gt lt IonRefresher gt To refresh we call doRefresh and there we just reload the whole page const doRefresh event CustomEvent lt RefresherEventDetail gt gt window location reload reload the whole page event detail complete we signal the loading indicator to hide Deleting tasksRight now we can swipe tasks from right to left to change the status of our tasks But I wanted to also add a left to right swipe so we can delete tasks We just need to add the swiping control to the already existing IonItemSliding control In this case we want a swipe from the start of the control This way we avoid any ambiguities with right to left vs left to right languages When the user taps on the new “Delete button which will appear red as we re using the danger color deleteTaskSelected is called lt IonItemSliding ref slidingRef className status task status gt lt IonItem gt lt IonLabel gt task name lt IonLabel gt lt IonItem gt lt IonItemOptions side end gt lt IonItemOption onClick toggleStatus gt Status lt IonItemOption gt lt IonItemOptions gt lt IonItemOptions side start gt lt IonItemOption onClick deleteTaskSelected color danger gt Delete lt IonItemOption gt lt IonItemOptions gt lt IonItemSliding gt To delete the task we use a GraphQL mutation defined in useTaskMutations ts const deleteTaskSelected gt slidingRef current close close sliding menu deleteTask task delete task RecapIn this post we ve seen how easy it is to start with an Ionic React web application and with only a few lines of code turn it into a mobile app running on iOS and Android Then we easily added some functionality to the three apps at the same time Ionic makes it super simple to run your Realm powered apps everywhere You can check out the code from this post in this branch of the repo just by typing git clone git checkout observe changesBut this is not the only way to integrate Realm in your Ionic apps Using Capacitor and our native SDKs we ll show you how to use Realm from Ionic in a future follow up post	2021-12-22 16:40:34
海外TECH	DEV Community	Unicode	https://dev.to/localizely/unicode-3kp7	UnicodeUnicode is an international character encoding standard It provides a unique number code point for every character no matter what the platform program or language is Furthermore it represents the most commonly used encoding today ASCIIASCII American Standard Code for Information Interchange is one of the first widely used character encoding standards People from the telecommunication and computing industries in America created it during the s As a bit coding system it supported i e ⁷ characters printing characters and control characters That was sufficient to encode numbers some special characters and the letters of the English alphabet However the spread of computing and the Internet has created a need for other characters as well As computers used bit bytes some manufacturers decided to use the remaining th bit in the ASCII code and thus expand the number of characters to This bit encoding is often referred to as “Extended ASCII or “ bit ASCII“ With the growth of different bit encoders data exchange became complicated and error prone That was a sign that it was necessary to find some universal solution that would work for all languages and cover all the special characters UnicodeUnicode provides a unique code for every character in every language in every program on every platform It enables a single document to contain text from different writing systems which was nearly impossible with earlier native encodings Moreover Unicode supports emojis which are an indispensable part of communication today Unicode Transformation FormatsUnicode defines several transformation formats also known as UTFs Unicode Transformation Formats These transformation formats define how each code is represented in bits in memory Below is a brief overview of the three UTFs that Unicode Standard provides UTF variable length character encoding that uses from to bytes from to bits backward compatible with ASCIIthe most common encoding on the web of all web pages UTF variable length character encoding that uses or bytes or bits internally used by Microsoft Windows Java JavaScript etc UTF fixed length character encoding that uses bytes bits faster to operate but uses more memory and wastes a lot of bandwidth Final thoughtsThanks to Unicode today s software runs on a variety of languages and platforms That was hard to imagine a few decades ago In other words today s software localization would be impossible without such an encoding standard More details regarding Unicode you can find in the original post	2021-12-22 16:37:26
海外TECH	DEV Community	PropTypes in JavaScript.	https://dev.to/fardinh1361/proptypes-in-javascript-4l63	PropTypes in JavaScript PropTypes exports a range of validators that can be used to make sure the data we receive is valid PropTypes are a mechanism to ensure that components use the correct data type and pass the right data and that components use the right type of props and that receiving components receive the right type of props	2021-12-22 16:31:24
海外TECH	DEV Community	Spark for beginners - and you	https://dev.to/barbara/spark-for-beginners-and-you-24ea	Spark for beginners and you Why do we need distributed data technologiesIf the dataset is larger than our memory the program won t work We could fiddle around with data compression or read in the file in smaller chunks io chunking when using python pandas library But if we have to handle big amounts of data we need a different solution For most of the use cases the memory and the CPU are not the bottleneck but the storage and the network is Meaning getting the data out of the storage into the memory so that the CPU can process it Loading data from a storage it is times slower than reading it in the CPU And we would have to move data all the time in and out of the memory to pass it to the CPU for the calculation This is called trashing and is very slow So we need a special system to distribute the data on several machines and process it in parallel Hadoop FrameworkHadoop is an ecosystem of tools for big data storage and data analysis It is older than Spark and writes intermediate results to disk whereas Spark tires to keep data in memory whenever possible so this is faster in many use cases Hadoop MapReduce Data ProcessingThis is a system for processing and analysing large data sets in parallel MapReduce is a programming technique for manipulation large data sets Divide and distribute In the first step a large dataset is divided and distributed across a cluster Map Each data is analysed and converted into a key value pair Shuffle Those key value pairs are shuffled across the cluster so that all keys are on the same machine Reduce All of those data points with the same key are brought into the same network node for further analysis Hadoop YARN Resource Managera resource manager that schedules jobs across a cluster The manager keeps track of what computer resources are available and then assigns those resources to specific tasks HDFS Hadoop Distributed File System Data StorageThis is a big data storage data system that splits data into chunks and stores the chunks across a cluster of computers SparkIs a big data framework and currently one of the most popular tools for big data analytics It contains libraries for data analysis machine learning graph analysis and streaming live data In general Spark is faster than Hadoop as it does not write intermediate results to disk It is not a data storage system We can use Spark on top of HDFS or read data from other sources like Amazon S It is the designed for Data Analytics Machine Learning Streaming and Graph Analytics Limitations of SparkStreaming Sparks Streamings s latency is at least ms since it operates on micro batches of records instead of processing one record at a time Native streaming tools like Storm Apex or Flink might be better for low latency applications Machine Learning Currently it only supports algorithms that scale linearly with the input data size and deep learning is not available If this is a use case we can use Tensorflow for deep learning Spark ModesLocal Mode useful to learn the syntax and prototype a projectCluster Modes We can use a cluster in Standalone version or via a clustermanager either YARN or Mesos ProgrammingIt is written in Scala and provides APIs in Java R and Python called Pyspark Under the hood Pyspark uses pyj to make calls to the JVM Java Virtual Machine The best way to run Spark on your computer is in a Docker container Check out this tutorial to see how Pure functionsAs we work with a distributed system we want to avoid side effects As we don t want to trigger effects on variables outside a function scope This functions are called pure functions DAG Directed Acyclic GraphEvery Spark function makes a copy of its input data because it does not want to mutate the input data This is called immutable and makes sense when you have a single function As we often have a function that is composed of a lot of subfunctions we would run out of memory very fast Thats why Spark uses lazy evaluation First step by step directions of what functions and data are needed You can compare those directions to the steps of a recipe In Spark this is called DAG Spark always waits as long as possible to see if it can streamline the work This is called Lazy EvaluationIf Spark would not do this the system would end up doing something called trashing As if you had to go for every single ingredient you need for your recipe to the supermarket instead of using a shopping list and pick up everything at one time at the supermarket Run SparkSpark Context Main entry point for Spark functionality This connects the cluster with the application We can create objects within a SparkContext to create lower level of abstractions We need to create a Sparksession to read the dataframes from pyspark import SparkContext SparkConffrom pyspark import SparkSessionconfigure SparkConf setAppName yourAppName setMaster IP Adress sc SparkContext conf configure spark SparkSession builder appName yourAppName getOrCreate takes in the log object and distributes the object across the machines of the clusterdistributed data sc parallelize your data will return the original dataset As Spark is uses lazy evaluation we have to call the collect method to get the results from all of the clusters and collect them into a single list on the master node distributed data collect RDDs Resilient Distributed Data SetThey are fault tolerant datasets distributed across a cluster This is how Spark stores the data In the first version of Spark we had to work directly with RDDs We can still use RDDs as part of our Spark code as we might need it in some cases When working with RDDs we have to use imperative programming this means we have to be very detailed with the programming instructions therefore using Datasets API available since Spark Version is much easier SPARK SQL and DataframeSpark dataframe offers methods that are quite similar to pandas dataframeGeneral Functionsselect returns a new DataFrame with the selected clolumnsfilter filters rows using the given conditionwhere alias for filtergroupBy groups the DataFrame using the specified columns so we can run aggregation on themsort returns a new DataFrame sorted by the specified column s By default the second parameter ascending is TruedropDuplicates returns a new DataFrame with unique rows based on all or just a subset of columnswithColumn return as a new DataFrame by adding a column or replacing the existing column that has the same name When using Spark SQL we can query data with a declarative approach Declarative programming is more concerned about the what than about the how In most cases this systems are an abstraction layer over an imperative system that takes care of the how As a lot of people can read and write SQL Spark will automise the SQL Code out of the box Spark magic alarm and this will speed up the process of manipulating and retrieving data ACHTUNG Unlike a database table the view in Spark is temporaryAggregate Functionslike count countDistinct avg max min You can find out all available aggregate functions in the pyspark sql functions module Make sure not to confuse those methods with the built in methods of the Python Standard Library UDF User Defined Functionsspark udf register yourFunctionName yourFunctionCode In Spark SQL we can define our own functions with the udf module But you can also use Lambda functions or build in Python functions if needed like distributed data log map lambda lower data data lower collect Window FunctionsWindow functions are a way of combining the values of ranges of rows in a DataFrame When defining the window we can choose how to sort and group with the partitionBy method the rows and how wide of a window we d like to use described by rangeBetween or rowsBetween Coding examples here	2021-12-22 16:24:43
海外TECH	DEV Community	Important array methods	https://dev.to/pritomdbhaskar/important-array-methods-2dja	joins	2021-12-22 16:24:26
海外TECH	DEV Community	Use this mnemonic to catch bugs in your code.	https://dev.to/jayeclark/use-this-mnemonic-to-catch-bugs-in-your-code-14e1	Use this mnemonic to catch bugs in your code I wasn t joking when I said I nerd out on mnemonic devices If a checklist can be turned into an acronym I will find a way Having ready to go lists of things to do to get back on track when I hit a challenge is one of the best ways I ve found to boost my productivity Today the mnemonic I d like to share is one for beginners It will help you identify what s going wrong with your code when here aren t helpful enough cues from the console your IDE or the test suite SCRUPLESIs your syntax right Did you call the function you need or just declare it Does the function return what it needs to Could there be unintended consequences to your code Did you put things in the right order Do your loops increment correctly Is there a way for your loops to end Are there issues with scope SyntaxWhen you re starting out of your problems are going to be solved right here The browser console amp your IDE provide error messages about syntax but they aren t always clear and sometimes can be misleading Make sure there isn t a where there should be a and that your and are nested correctly Little things like inconsistent capitalization of variables plural singular typos or incorrect formatting of fat arrow callback functions can also cause issues that can be hard to locate If you re doing web development and setting styles check that the values you re passing are modified with the right units px vw etc Call Your FunctionsI still make this mistake more than I d like to admit I ll write an incredibly complicated function then fail to ever actually call it in the code Think of the function declaration like a recipe you can write down the recipe for grandma s peanut butter fudge but writing down the recipe declaring the function is not the same as actually making the fudge calling the function Return something from the functionIf you need a function to return something make sure it actually returns that thing Setting the variable result true inside your isUserLoggedIn function does you no good unless isUserLoggedIn actually returns that value Unintended consequencesWatch out for unintended consequences Certain methods mutate the original variable while others return a copy If you have a function that increases a counter or increases the value of a variable that effect will take place even if you are just logging the result of the function to the console You ll learn over time with practice what to look out for I had to learn a hard lesson about Array forEach and splicing deleting array elements I still forget that String replace needs to be assigned to a variable and doesn t mutate the original string Put things in the right orderFunction declarations can appear later in the code than where they are called but fat arrow function expressions must appear before they are called Variables need to be declared earlier in the code than when they are used or mutated Beyond these functional issues consider trying to write your code like a story so that when you return to it in the future you have an easier time figuring out what you were trying to do and how LoopsMake sure your loops increment the way they re supposed to This is especially important for while loops if a counter isn t increasing or something isn t being mutated each loop you re unlikely to ever hit the condition to exit the while loop End your loopsSomewhat related to the last one make sure your loops have a way to exit Don t be me and start a for loop with for let i arr length i gt i If your loop is taking a very long time to run check whether you can add in a way for it to end early if you re searching a element array for the first index of a specific value and you find that at i make sure you re not iterating through the entire remaining values before ending the loop ScopeCheck that the scope of your variables and functions works for where you are trying to use them If you define a helper function inside of a function declaration that helper function is not going to be available outside of that declaration If you re looking for the highest value in an array but declare the variable highestValue inside the for loop you re using to scan the array that variable will get torn down and rebuilt with each loop Above all be kind to yourself Don t beat yourself up over any of these mistakes As I ve interacted with more and more senior people in the industry I ve learned that everyone makes these mistakes You ll be much more successful at learning to quickly identify and correct mistakes like these than you will at training yourself not to make these mistakes at all so focus your effort where it will make the most impact But my code still doesn t work This list isn t comprehensive It s a checklist of the most common errors I had to train myself not to make when starting out Your mileage may vary You might also be less of a beginner than you think and are encountering more complex issues Think of it as a way to organize your thoughts amp analysis Especially in moments of frustration I find it helpful to have a plan of attack What do you think are there common errors I missed Do you have your own version of scruples that you use	2021-12-22 16:14:43
海外TECH	DEV Community	Angular for newbies	https://dev.to/mhbaando/angular-for-newbies-20ad	Angular for newbies Part Ibefore i start talking about angular this is the first post am taking about angular and it will be series of posting to cover what is an angular and how to use it What is an Angular angular is JavaScript framework tool that help you build interactive and rich websites according the angular website they defined angular is A component based framework for building scalable web applicationsA collection of well integrated libraries that cover a wide variety of features including routing forms management client server communication and moreA suite of developer tools to help you develop build test and update your codeoooooh that is not a definition a beginner can understand Right are you feeling what am feeling let s simplify what that definition means Component Based it s an approach way that focuses on developing and maintaining a reusable piece of code it is a way we can break down our entire code into smaller pieces Why do wee need to break our code into smaller pieces Hmmm Good Question because it helps us to maintain our code easily it helps our component to stay up to date it also helps us to fix bugs and so on All Right now we have understood what means component based Yeeey you earned a cup of coffee ️So what is a framework according to code academy frame work is A framework is a structure that you can build software on It serves as a foundation so you re not starting entirely from scratchyep you heard it right you don t need to start from scratch angular team already took care of that work thanks to them in our next post will cover what they mean libraries routing form management client server communication and a lot of cryptic words thanks for reading it hope you liked it and tell me what to cover next in the comment section see you and stay healthy	2021-12-22 16:13:21
Apple	AppleInsider - Frontpage News	Apple's VR headset: What to expect and what it will look like	https://appleinsider.com/articles/21/12/22/apples-vr-headset-what-to-expect-and-what-it-will-look-like?utm_medium=rss	Apple x s VR headset What to expect and what it will look likeRumors suggest that the Apple VR headset will release sometime in and AppleInsider has created exclusive renders to showcase what it may look like The Apple VR headsetThe Apple VR headset represents Apple s first step into its mixed reality future It is expected to borrow design elements from across Apple s product line to ensure a comfortable yet fashionable device Read more	2021-12-22 16:37:56
Apple	AppleInsider - Frontpage News	A prominent orange dot in macOS Monterey is causing problems for artists	https://appleinsider.com/articles/21/12/22/a-prominent-orange-dot-in-macos-monterey-is-causing-problems-for-artists?utm_medium=rss	A prominent orange dot in macOS Monterey is causing problems for artistsLive performers are complaining that Apple s macOS Monterey microphone in use alert an orange dot in the Menu Bar has rendered the Mac unusable during events A prominent orange dot in macOS Monterey is causing problems for artistsApple implemented a visual representation that alerts users to any application or device accessing their microphone or camera ーan orange or green dot in the Menu Bar This security feature is meant to draw users attention to inadvertent access but has been implemented in a way that is disruptive to visual artists Read more	2021-12-22 16:39:03
海外TECH	Engadget	Tesla under investigation for 'Passenger Play' gaming feature	https://www.engadget.com/tesla-passenger-play-games-driving-investigation-nhtsa-161515954.html?src=rss	Tesla under investigation for x Passenger Play x gaming featureTesla came under fire earlier this month following reports that certain games are playable on dashboard infotainment systems while an EV is in motion The National Highway Traffic Safety Administration is now investigating Tesla over the so called quot Passenger Play quot function The preliminary evaluation from the agency s Office of Defects Investigation ODI covers around Model S X and Y vehicles sold since While the feature prompts players to acknowledge they re a passenger before they start a game the NHTSA said Passenger Play quot may distract the driver and increase the risk of a crash quot A report from the New York Timesindicated that an update Tesla rolled out in the summer made three games playable while a car is moving Before then Passenger Play was only available when the EV was in park The NHTSA told Engadget earlier in December that it was speaking to Tesla about the feature The ODI said the preliminary evaluation will assess the driver distraction potential of Passenger Play while the EV is moving It will look into various aspects of Passenger Play including use scenarios and how often it s used In announcing the investigation the NHTSA cited a report that was filed with the agency in August quot Tesla is now making interactive video games and live internet web searching possible on the main front seat display while the car is driving quot the complaint reads quot Why is a manufacturer allowed to create an inherently distracting live video which takes over of the screen which the driver relies on for all vehicle information Creating a dangerous distraction for the driver is recklessly negligent quot Tesla didn t respond to a request for comment from Reuters The company no longer has a PR department	2021-12-22 16:15:15
海外TECH	Engadget	In 2021, Tesla's phenomenal profits were offset by constant crisis	https://www.engadget.com/tesla-had-a-phenomenal-2021-150044600.html?src=rss	In Tesla x s phenomenal profits were offset by constant crisisThe close of finds Tesla wealthier than ever ーand in CEO Elon Musk s case wealthier than everybody else The electric vehicle manufacturer notched records for both deliveries and profits this year despite a global chip shortage that decimated supply chains worldwide effectively kneecapping the rest of the automotive industry s production capacity However its financial successes were often overshadowed by Tesla s continuing production quality issues multiple NHTSA and SEC investigations high profile failures of its vaunted “Full Self Driving system as well as numerous vehicle recalls and delays for upcoming models And with existing industry stalwarts like Ford GM Honda and the Volkswagen Group making concerted efforts to electrify their own offerings could be the year that Tesla s reign as top EV automaker finally ends The Good was without a doubt a banner year for Tesla s bottom line The company entered this year having met its goal of producing a half million vehicles of which it delivered to customers a nearly unit increase over By April Tesla had produced a record vehicles and delivered of them Demand remained strong throughout the first half of the year thanks in part to price cuts on both the Model and Model Y The company then broke its same record in July having built vehicles over the past three months earning Tesla billion in net income during the same period “Public sentiment towards EVs is at an inflexion point and at this point I think almost everyone agrees that electric vehicles are the only way forward Musk said during the Q earnings call Unsurprisingly Tesla s record breaking trend continued unabated through Q with the company rolling vehicles off its production lines ーnearly all of which were of the Model and Model Y varieties ーand delivering of them The company also began taking pre orders for the UK version of the Model Y in October and announced that those Model Ys destined for the Chinese market would be receiving upgraded AMD Ryzen chipsets Tesla capped off its stellar financial year with announcements from Hertz that it plans to order vehicles though there remains uncertainty about how that deal will actually play out and from Uber Eats that it intends to rent as many as Tesla vehicles to its drivers The BadWhile Tesla enjoyed unabashed sales success with its core lineup the company often struggled to meet release deadlines for a number of its yet to be released models Both the Cybertruck and Semi have both been pushed back to while the Tesla Roadster reportedly won t be arriving until at least Tesla also took the strange tack of releasing an “entry level standard range Model Y for just a few weeks before discontinuing the trim level Similarly Tesla pushed back the release of its Model S Plaid edition to June th debuting it mere days after Musk unilaterally announced that the Model S Plaid was canceled outright The company was also beset by a wide array of production woes and vehicle recalls this year In February Tesla bowed to pressure from the NHTSA and recalled Model X and S vehicles on account of faulty touchscreens That same month Tesla was forced to issue a recall for another Model Xs on account of loose trim panels In April customers reported that the company had double charged them for their vehicles up to in some cases though Tesla was quick to reimburse the affected buyers and even threw in a gift certificate for the company store June saw yet another recall this time for Model and Ys over faulty brake caliper bolts and in October Tesla had to recall another set of Ys and s because their suspensions kept separating Just last month the company had to pull nearly vehicles from across its product line on account of software issues ーthat s not to be confused with the recent Tesla App outage that locked drivers around the world out of their own vehicles Tesla s parade of crises also extended to the production lines themselves with the Fremont factory facing a sizeable COVID outbreak shortly after reopening in March Musk complained often and loudly throughout over California s quarantine lockdown laws and finally made good on threats to take his toys and go home officially moving Tesla s headquarters to Texas in October The company was also ordered to pay million to former employee Owen Diaz after a San Francisco federal court jury found Tesla liable for the unconscionable racial bigotry Diaz faced while working at the Fremont plant That lawsuit has been followed up by another filed in November by Jessica Barraza who alleged “rampant sexual harassment as well as continued verbal and physical abuse while she worked at the Fremont location If you want the Tesla Full Self Driving Beta downloaded to your car let us know Doubling beta program size now with amp probably X size with Still be careful but it s getting mature ーElon Musk elonmusk March Tesla s Full Self Driving beta also turned out to be a mixed bag for the company in Following its debut in October of last year beta rolled out in May doubling the size of the test program before releasing beta in July Version s rollout coincided with a new FSD subscription program charging customers a month or a month if they d previously purchased the now discontinued Enhanced Autopilot feature ーassuming they already had the FSD computer hardware installed in their vehicle However Tesla s decision to abandon radar based autonomation sensors in favor of an optical only setup in May led to a backlash from the NHTSA which subsequently forced the company to remove some of its driver assist designations such as forward collision and lane departure warnings In an effort to counter claims that the use of the Autopilot feature can cause drivers to become inattentive and less responsive once they resume control of the vehicle Tesla activated its in car driver monitoring cameras in late May FSD beta arrived to great fanfare in September with owners noting smoother turns on city streets improved display visuals and an overall improvement in the vehicle s off highway navigation Those feelings were short lived when in October the company was forced to revert its beta implementation after becoming aware of quot some issues quot per Musk including a quot regression quot with left turns Users also reported phantom forward collision warnings and auto steering bugs The company s FSD faults ーwhich have been implicated in multiple crashes where Teslas inexplicably rammed into first responder vehicles and other civilian drivers as well as a widely reported wreck in Houston with nobody behind the wheel ーhas led to calls for increased scrutiny from and by the NHTSA NTSB the US Senate and even the California DMV The FSD feature also prompted a unit recall at the behest of the Chinese government over the ease in which FSD can be activated though that was far from the only issue Tesla faced with the nation In April China banned Tesla vehicles from its military bases and “key state owned companies over fears that the cars myriad cameras could be leveraged for espionage After nearly a month of wrangling and appeals to social media Tesla finally caved to China s cybersecurity demands and established a local clearinghouse for that data The MuskAnd what would a Year in Review of Tesla be without a look back at CEO Elon Musk s unique brand of shenanigans Last October Musk unilaterally disbanded Tesla s PR department thereby making his personal Twitter account the first last and only stop for confirmation of the company s decisions This January Musk reversed course slightly and instead of reforming the department began hiring people to respond to customer complaints made toward him on the social media platform Speaking of tweets Tesla was also sued this year for allegedly breaking a previously struck deal with the SEC by allowing Musk to continue sending unapproved quot erratic quot tweets as well as for the company failing to obtain a neutral general counsel to reign in its CEO The National Labor Relations Board also went after Tesla in finding that the company had illegally fired a union activist The NLRB consequently demanded that the worker be rehired and Musk delete a union busting tweet related to the case was also the year that Musk leaned hard into crypto Tesla bought billion worth of the stuff in February and briefly toyed with the idea of allowing customers to use the currency to purchase its vehicles though those plans were quickly canned over concerns about Bitcoin mining s environmental impacts Musk also took time out of his Saturday Night Live hosting duties in May to crash the value of Bitcoin rival Dogecoin though his later tweets helped the price of Dogecoin rebound to a degree And then there was the whole Tesla “Robot debacle which I can t even I mean it was literally just an actor in a spandex jumpsuit dancing around while Musk made a bunch of wildly unsubstantiated claims What s NextLooking ahead to Tesla appears to be on track for continued success Its Berlin Gigafactory is nearly ready to start production and is expected to do so by the end of this month barring any unforeseen setbacks The company s stockpile of chipsets and aggressive maneuvers to shore up supplies of battery precursor materials will insulate Tesla from many of the production bottlenecks that many other EV automakers are likely to struggle with throughout the new year However even with Tesla s record breaking production figures from the past couple of years the number of vehicles it delivers annually is still a small fraction of what more established automakers sell BMW for example sold million vehicles worldwide in In the same year GM sold million in the US alone And as those companies increasingly turn their attention to the EV market while leveraging economies of scale that Tesla cannot match Musk s company could soon find itself relegated back to being a niche EV brand rather than an industry titan	2021-12-22 16:00:44
海外TECH	Network World	Equinix leads consortium that's building fuel cells to power data centers	https://www.networkworld.com/article/3645413/equinix-leads-consortium-thats-building-fuel-cells-to-power-data-centers.html#tk.rss_all	Equinix leads consortium that x s building fuel cells to power data centers A partnership of seven organizations including data center giant Equinix announced plans to build fuel cells to power data centers The group of mostly European companies is funded by a European Union clean energy initiative Along with Equinix the partners consist of infrastructure giant Vertiv sustainable data center specialist InfraPrime Italian utility Snam German fuel cell manufacturer SOLIDpower TECFUELS research center and a research institute from Sweden called RISE The project is called EcoEdge PrimePower EP and is funded by the Clean Hydrogen Partnership a European Union initiative launched earlier this month with total funding of nearly billion EP will get roughly million of that To read this article in full please click here	2021-12-22 16:17:00
Cisco	Cisco Blog	How VQ Communications Black Belt Training Can Help Partners Deliver Greater Value for Customers	https://blogs.cisco.com/partner/how-vq-communications-black-belt-training-can-help-partners-deliver-greater-value-for-customers	How VQ Communications Black Belt Training Can Help Partners Deliver Greater Value for CustomersTogether VQ Conference Manager and Cisco Meeting Server can deliver conferencing services at truly mind blowing scale through its complete solution offering Take the trainings	2021-12-22 16:52:50
海外TECH	CodeProject Latest Articles	News Track - News Aggregator	https://www.codeproject.com/Articles/5299293/News-Track-News-Aggregator	certain	2021-12-22 16:14:00
海外科学	NYT > Science	3,000 Years Ago, Britain Got Half Its Genes From France, DNA Study Suggests	https://www.nytimes.com/2021/12/22/science/archaeology-britain-migration-dna-reich.html	Years Ago Britain Got Half Its Genes From France DNA Study SuggestsAn extensive study of ancient DNA suggests that a wave of newcomers ーand perhaps the first Celtic languages ーcrossed the English Channel three millenniums ago	2021-12-22 16:02:42
海外科学	NYT > Science	Why These Mexican Fish Do the Wave	https://www.nytimes.com/2021/12/22/science/fish-wave-mexico.html	earth	2021-12-22 16:53:39
金融	金融庁ホームページ	「金融分野における個人情報保護に関するガイドライン」及び「金融分野における個人情報保護に関するガイドラインの安全管理措置等についての実務指針」の一部改正（案）に対する意見募集について公表しました。	https://www.fsa.go.jp/news/r3/sonota/20211222/20211222.html	個人情報保護	2021-12-22 17:00:00
ニュース	ジェトロ ビジネスニュース（通商弘報）	カナダ政府はデジタルサービス税法案動議を提案、米USTR「あらゆる選択肢を検討」	https://www.jetro.go.jp/biznews/2021/12/90fa3529d8fed0b1.html	選択肢	2021-12-22 16:30:00
ニュース	ジェトロ ビジネスニュース（通商弘報）	小麦とトウモロコシの輸出数量上限を設定	https://www.jetro.go.jp/biznews/2021/12/4c5517798a0f3bd6.html	輸出	2021-12-22 16:20:00
ニュース	ジェトロ ビジネスニュース（通商弘報）	ペルー港湾公社、ボリビアと商業協定を締結、利活用への期待値は低く	https://www.jetro.go.jp/biznews/2021/12/fb48d67dfd080b40.html	締結	2021-12-22 16:10:00
ニュース	ジェトロ ビジネスニュース（通商弘報）	第3四半期GDP成長率は前年同期比11.9％、2021年通年は8～10％の見込み	https://www.jetro.go.jp/biznews/2021/12/22b7b333319d7584.html	前年同期	2021-12-22 16:10:00
ニュース	BBC News - Home	Daily Covid-19 cases in the UK exceed 100,000 for first time	https://www.bbc.co.uk/news/uk-59758757?at_medium=RSS&at_campaign=KARANGA	omicron	2021-12-22 16:36:27
ニュース	BBC News - Home	Covid vaccine recommended for vulnerable five to 11-year-olds	https://www.bbc.co.uk/news/health-59758780?at_medium=RSS&at_campaign=KARANGA	omicron	2021-12-22 16:20:48
ニュース	BBC News - Home	Covid-19: Nightclubs in NI to close from 27 December	https://www.bbc.co.uk/news/uk-northern-ireland-59756633?at_medium=RSS&at_campaign=KARANGA	omicron	2021-12-22 16:31:08
ニュース	BBC News - Home	Julie Morris: Wigan deputy head teacher jailed for raping girl	https://www.bbc.co.uk/news/uk-england-merseyside-59754035?at_medium=RSS&at_campaign=KARANGA	children	2021-12-22 16:36:26
ニュース	BBC News - Home	Louise Minchin: Stalker Carl Davies jailed more than two years	https://www.bbc.co.uk/news/uk-wales-59740841?at_medium=RSS&at_campaign=KARANGA	davies	2021-12-22 16:49:09
ニュース	BBC News - Home	LadBaby, Ed Sheeran and Elton John's Christmas hit	https://www.bbc.co.uk/news/entertainment-arts-59761587?at_medium=RSS&at_campaign=KARANGA	elton	2021-12-22 16:26:15
ニュース	BBC News - Home	Man City agree to sell Spain forward Torres to Barcelona	https://www.bbc.co.uk/sport/football/59760266?at_medium=RSS&at_campaign=KARANGA	Man City agree to sell Spain forward Torres to BarcelonaManchester City have agreed a deal to sell forward Ferran Torres to Barcelona for m euros £m with a further m euros £m in add ons	2021-12-22 16:18:59
ニュース	BBC News - Home	‘I couldn’t really walk’ - England's Breach set to return after breaking back	https://www.bbc.co.uk/sport/rugby-union/59758365?at_medium=RSS&at_campaign=KARANGA	I couldn t really walk England x s Breach set to return after breaking backJess Breach always seemed destined for World Cup greatness but after breaking her back she will not look past the next game	2021-12-22 16:38:04
ニュース	BBC News - Home	Covid-19 in the UK: How many coronavirus cases are there in my area?	https://www.bbc.co.uk/news/uk-51768274?at_medium=RSS&at_campaign=KARANGA	cases	2021-12-22 16:45:39
ビジネス	ダイヤモンド・オンライン - 新着記事	全く売れなかった土地が、なぜチラシの作り方を少し変えただけで、あっという間に売れたのか？ - 「A4」1枚チラシで今すぐ売上をあげるすごい方法	https://diamond.jp/articles/-/291545		2021-12-23 01:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	6000軒を片づけた家政婦が教える「片づけられない人」の問題点 - だから、この本。	https://diamond.jp/articles/-/291387	家事代行サービス「タスカジ」では「予約が取れない家政婦」と呼ばれ、この冬「セブンルール」にも出演するなど、人気が急上昇している。	2021-12-23 01:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	iDeCoの死亡一時金、請求しないと国庫に！ 期限は5年です - ぶっちゃけ相続「手続大全」	https://diamond.jp/articles/-/291636	ideco	2021-12-23 01:45:00