投稿時間:2022-04-11 21:34:46 RSSフィード2022-04-11 21:00 分まとめ(42件)

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IT	気になる、記になる…	中国のロックダウン、｢iPhone｣の生産の一部に影響が出始めている模様	https://taisy0.com/2022/04/11/155624.html	apple	2022-04-11 11:59:50
IT	ITmedia 総合記事一覧	[ITmedia News] 電力価格高騰で「採算性の担保が困難」――新電力「Natureスマート電気」終了へ　6月30日で供給停止	https://www.itmedia.co.jp/news/articles/2204/11/news161.html	itmedia	2022-04-11 20:40:00
IT	ITmedia 総合記事一覧	[ITmedia News] 増えるサイバー攻撃に経産省が警鐘　産業界へ「セキュリティ対策徹底」呼び掛け	https://www.itmedia.co.jp/news/articles/2204/11/news160.html	itmedia	2022-04-11 20:15:00
python	Pythonタグが付けられた新着投稿 - Qiita	Pythonを使うためにVisual Studio Codeをインストールしてみた	https://qiita.com/_starfields_/items/fb3b73db7fff41d567e4	powershell	2022-04-11 20:38:17
Ruby	Rubyタグが付けられた新着投稿 - Qiita	rails cでの記述map,ppについて	https://qiita.com/seiyarick/items/3db2f8e425fcfb630285	mapeach	2022-04-11 20:36:58
Ruby	Rubyタグが付けられた新着投稿 - Qiita	新規投稿時にundefined method `upload' for nil:NilClassエラーについて	https://qiita.com/seiyarick/items/710ef091889c6d643028	method	2022-04-11 20:23:48
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	ONKYO の 32bit efi なマシンに 64bit の ubuntu をインストールする	https://qiita.com/mugimugi/items/f40cfbfafca063e3db1d	onkyotwazcpu	2022-04-11 20:01:56
Linux	CentOSタグが付けられた新着投稿 - Qiita	Centos 8 iso	https://qiita.com/mightyboy0417/items/05c74b6e396dfb34159e	isocentos	2022-04-11 20:57:23
Git	Gitタグが付けられた新着投稿 - Qiita	Gitを使ってやらかした時、git reflogさえ使えればわりかしなんとかなる	https://qiita.com/getty104/items/cfd98f5f0ea89ef07bf0	gitreflog	2022-04-11 20:48:08
Ruby	Railsタグが付けられた新着投稿 - Qiita	rails cでの記述map,ppについて	https://qiita.com/seiyarick/items/3db2f8e425fcfb630285	mapeach	2022-04-11 20:36:58
Ruby	Railsタグが付けられた新着投稿 - Qiita	新規投稿時にundefined method `upload' for nil:NilClassエラーについて	https://qiita.com/seiyarick/items/710ef091889c6d643028	method	2022-04-11 20:23:48
技術ブログ	Mercari Engineering Blog	Goでテストのフィクスチャをいい感じに書く	https://engineering.mercari.com/blog/entry/20220411-42fc0ba69c/	hellip	2022-04-11 12:26:02
海外TECH	MakeUseOf	The 8 Best Features of the Windows 11 Insider Preview Build 22579	https://www.makeuseof.com/windows-11-insider-preview-build-22579-features/	microsoft	2022-04-11 11:39:29
海外TECH	MakeUseOf	8 Common Communication Mistakes to Avoid in Virtual Teams (And What to Do Instead)	https://www.makeuseof.com/common-communication-mistakes-to-avoid-virtual-teams/	Common Communication Mistakes to Avoid in Virtual Teams And What to Do Instead Communication problems within virtual teams can negatively affect productivity Here are some common mistakes to avoid when working remotely	2022-04-11 11:30:13
海外TECH	MakeUseOf	3 Great Features Now on Windows 11 From the Insider Preview Build 22557	https://www.makeuseof.com/windows-11-insider-preview-build-22557-release/	explore	2022-04-11 11:28:51
海外TECH	DEV Community	Share a code snippet in any programming language and describe what's going on	https://dev.to/ben/share-a-code-snippet-in-any-programming-language-and-describe-whats-going-on-7k5	share	2022-04-11 11:29:34
海外TECH	DEV Community	Implement a timing wheel for millions of concurrent tasks.	https://dev.to/kevwan/implement-a-timing-wheel-for-millions-of-concurrent-tasks-30oi	Implement a timing wheel for millions of concurrent tasks For systems that contain lots of delayed in process tasks If we use lots of timers to handle the tasks there will be lots of idle goroutines and lots of memory consumed Lots of gourtines also consume more CPU to schedule them This article introduces the TimingWheel in go zero which allows developers to schedule lots of delayed tasks As for delayed tasks two options are usually available Timer timers are used for one off tasks It represents a single event in the future You tell the timer how long you want to wait and it provides a channel that will be notified at that time TimingWheel which maintains an array of task groups and each slot maintains a chain of stored tasks When execution starts the timer executes the tasks in one slot at specified intervals Option reduces the maintenance of tasks from priority queue O nlog n to bidirectional linked table O and the execution of tasks also requires only polling for tasks at one point in time O N without putting in and removing elements O nlog n as in the case of the priority queue Let s look at our own use of TimingWheel in go zero TimingWheel in cacheLet s start with the use of TimingWheel in the cache of collection timingWheel err NewTimingWheel time Second slots func k v interface key ok k string if ok return cache Del key if err nil return nil err cache timingWheel timingWheelThis is the initialization of cache which also initializes TimingWheel to clean the expired key interval time interval to check the tasksnumSlots the number of time slotsexecute the function to process tasksThe execution function in cache is deleting the expired key and this expiration calls are controlled by TimingWheel to proceed Initialization The initialization of TimingWheelfunc newTimingWheelWithClock interval time Duration numSlots int execute Execute ticker timex Ticker TimingWheel error tw amp TimingWheel interval interval time frame interval ticker ticker the ticker to trigger the execution slots make list List numSlots the slots to put tasks timers NewSafeMap map to store task with key value tickedPos numSlots the previous ticked position execute execute execute function numSlots numSlots the number of slots setChannel make chan timingEntry the channel to set tasks moveChannel make chan baseEntry the channel to move tasks removeChannel make chan interface the channel to remove tasks drainChannel make chan func key value interface the channel to drain tasks stopChannel make chan lang PlaceholderType the channel to stop TimingWheel Prepare all the lists stored in the slot tw initSlots start asynchronous concurrent process use channel for task communication and passing go tw run return tw nil The above is a more visual representation of the time wheel of TimingWheel and the details will be explained later around this diagram go tw run creates a goroutine to do the tick notification func tw TimingWheel run for select Timer does time push gt scanAndRunTasks case lt tw ticker Chan tw onTick add task will input task to setChannel case task lt tw setChannel tw setTask amp task As you can see the timer execution starts at initialization and spins in the internal time slot and then the bottom keeps fetching the task from the list in the slot and giving it to the execute execution Task OperationThe next step is to set the cache key func c Cache Set key string value interface c lock ok c data key c data key value c lruCache add key c lock Unlock expiry c unstableExpiry AroundDuration c expiry if ok c timingWheel MoveTimer key expiry else c timingWheel SetTimer key value expiry check if the key exists in the data mapif it exists update expire by calling MoveTimer otherwise set the key with expiry by calling SetTimer So the use of TimingWheel is clear developers can add or update according to their needs Also if we read the source code we will find that SetTimer MoveTimer is to send the task to the channel and the task operation of the channel will be continuously taken out by the goroutine created in run SetTimer gt setTask not exist task getPostion gt pushBack to list gt setPositionexist task get from timers gt moveTask MoveTimer gt moveTask From the above call chain there is a function that is called by all moveTask func tw TimingWheel moveTask task baseEntry timers Map gt get positionEntry pos task by key val ok tw timers Get task key if ok return timer val positionEntry delay lt interval gt delay is less than a time frame interval the task should be executed immediately if task delay lt tw interval threading GoSafe func tw execute timer item key timer item value return If gt interval calculate the new pos circle out of the time wheel by delaying the time pos circle tw getPositionAndCircle task delay if pos gt timer pos timer item circle circle Record the offset of the move timer item diff pos timer pos else if circle gt move to the level of circle circle timer item circle circle because it s an array add numSlots which is the equivalent of going to the next level timer item diff tw numSlots pos timer pos else If offset is ahead of schedule task is still on the first level mark the old task for deletion and requeue it for execution timer item removed true newItem amp timingEntry baseEntry task value timer item value tw slots pos PushBack newItem tw setTimerPosition pos newItem The above process has the following cases delay lt internal because lt single time precision it means that this task needs to be executed immediatelydelay for changes new gt old lt newPos newCircle diff gt newCircle gt compute diff and convert circle to the next level so diff numslotsIf the delay is simply shortened remove the old task marker rejoin the list and wait for the next round of loops to be executed ExecutePreviously in the initialization the timer in run keeps advancing and the process of advancing is mainly to pass the task in the list to the execution of execute func Let s start with the execution of the timer Timer execute every internal func tw TimingWheel onTick update the current tick position on every execution tw tickedPos tw tickedPos tw numSlots Get the chain of tasks stored in the tick position at this time l tw slots tw tickedPos tw scanAndRunTasks l Immediately following this is how to execute execute func tw TimingWheel scanAndRunTasks l list List store the tasks key value that currently need to be executed the arguments needed by execute passed in turn to execute var tasks timingTask for e l Front e nil task e Value timingEntry mark for deletion do the real deletion in scan delete data from map if task removed next e Next l Remove e tw timers Del task key e next continue else if task circle gt the current execution point has expired but at the same time it s not in the first level so even though the current level is done it drops to the next level but it doesn t modify pos task circle e e Next continue else if task diff gt because the diff has already been marked it needs to go into the queue again next e Next l Remove e pos tw tickedPos task diff tw numSlots tw slots pos PushBack task tw setTimerPosition pos task task diff e next continue the above cases are all non executable cases those that can be executed will be added to tasks tasks append tasks timingTask key task key value task value next e Next l Remove e tw timers Del task key e next for range tasks then just execute each task gt execute tw runTasks tasks The specific branching situation is explained in the comments which can be combined with the previous moveTask where circle descends and diff computation is the focus of the associated two functions As for the diff calculation it involves the calculation of pos circle interval min d min numSlots tickedPos step pos circle func tw TimingWheel getPositionAndCircle d time Duration pos int circle int steps int d tw interval pos tw tickedPos steps tw numSlots circle steps tw numSlots return The above process can be simplified to the following steps d intervalpos step numSlots circle step numSlots SummarizeTimingWheel relies on the timer to drive the time forward while taking out the tasks from the doubly linked list in the current time frame and passing them to execute for execution Because it is driven by internal fixed time step there may be a s task internal s so it will run times noop in the expansion time take circle layering so that you can constantly reuse the original numSlots because the timer is constantly loop through circle by circle Any number of tasks can be put into the fixed size of slots This design can break the long time limit without creating additional data structures Also in go zero there are many practical toolkits using them for improving service performance and development efficiency Project addressWelcome to use go zero and star to support us	2022-04-11 11:28:07
海外TECH	DEV Community	Using Python's String Slicing to Add/Replace Characters in Specific Positions	https://dev.to/josephmads/using-pythons-string-slicing-to-addreplace-characters-in-specific-positions-1ed5	Using Python x s String Slicing to Add Replace Characters in Specific PositionsIntroThis article demonstrates how to replace characters in one variable for the characters in another using the classic game of hangman It will show the game code the main problem I encountered and a solution to that problem The Gameword hello perm word hello blank len word dex count len word print f This is a hangman game Can you guess the word blank in tries while blank perm word and count guess input Guess a letter if len guess gt print Type a single letter continue for char in guess if char in word dex word find char blank blank dex char blank dex word word dex word dex count print blank print f Correct You have count tries left else count print f Wrong You have count tries left print You win THE PROBLEMAll of the code executed properly except for the lines that replace the dashes in blank with the properly guessed characters from word When played the game printed a correct guess as a single character like this e If the second guess was an h the game would print eh instead of he THE SOLUTIONThe key thing to remember for this problem is that strings in Python are immutable To replace or add characters to a string Python needs to create a copy of the string and replace characters in that copy The following three lines of code provide this function dex word find char blank blank dex char blank dex word word dex word dex The first line gets the index value for the guessed character Using this value the second line slices the dashes in blank by selecting all the index values before the guessed character with blank dex It then concatenates this first slice with the guessed character and the ending slice blank dex is the final slice It selects all of the remaining index values after the guessed character Now if you guess e the game prints e Problem solved Not quite The word hello has two l s Everything works as expected for the first l The game prints el However when a second l is guessed the game stops at the first l and continues to print el The third line of the code above solves this It functions similarly to the previous line except it operates on word instead of blank Essentially this makes the two variables exchange their values as characters are guessed If l is guessed the values of blank and word will look like this blank l word he lo Now when the second l is guessed word only contains one l The game functions as it should The values of blank and word will look like this blank ll word he o ADDING A CHARACTERTo add a character in a specific position instead of replacing it remove the from dex in the final slice For example if e is guessed the following line of code word word dex word dex will print h ello Thanks for reading	2022-04-11 11:25:19
海外TECH	DEV Community	🎤Saydle - A Wordle clone that uses your voice to play!	https://dev.to/rishabh510/saydle-a-wordle-clone-that-uses-your-voice-to-play-51lb	Saydle A Wordle clone that uses your voice to play Hey everyone I am new to writing blogs and this one is going to be my first one on dev to Thanks to Deepgram and Dev to for motivating me to start This project is targeted for the Build challenge Overview of My Submission What is Saydle I am obsessed with Wordle these days which also is the inspiration for this project Saydle is a fun project which I built to give a twist to normal Wordle We normally use our keyboard to type the letters and guess the word right In this game we can t type In fact there is no keyboard Instead you have to use your voice to speak the words rather than typing Tools and Technologies ️HTML CSS JavascriptHasura GraphQL Sawo Authentication Heroku Postgres Database Deepgram AI speech to text Replit deploy Features No keyboard means that you can t see which characters you have already used on the on screen keyboard Though you can see the grid to make out the unused letters Also there is no Enter or Delete key concept in this game That means as soon as you speak a letter word it is automatically submitted Moreover how are you gonna tackle homophones same sound but different spelling Continue reading to get a hint It uses passwordless authentication to authenticate users and maintain a history of the number of matches played and the number of matches won against each user Challenges I faced I have kept the code simple and intuitive with beginner level technologies to make it easier for anyone to understand the codebase This was also the first time I was working with Deepgram and thanks to the exemplar projects I was able to integrate it in my code It is difficult to tackle homophones same sound different spelling and meaning when playing But using Deepgram we can say sentences where the target word is the first word in sentence For example There is a house picks up the word THERE Their family picks up the word THEIRSince I am new to blogging it might not be up to the mark Suggestions to improve amp constructive criticism are welcome Future Scope This is a static web project and does not ensure the security of your API keys I would be migrating this project to ReactJs with better management of secrets Wordle has a very minimal UI and I wanted to retain the same However I would be making a better UX by adding themes animations transitions etc Adding features like a leaderboard difficulty level word length time limit etc would make it even more fun Just wondering what if on winning a match your voice recording is minted as an NFT Would love to hear your opinions and suggestions especially on this feature Submission Category Wacky Wildcards Link to Code on GitHub Additional Resources InfoDeployed AppGithub RepoScreenshots ️ ConclusionI got to learn a lot of new things by building this project Would love to see your thoughts about the project Saydle	2022-04-11 11:16:00
海外TECH	DEV Community	Graph Algorithm - Bipartite Graph(DFS)	https://dev.to/rohithv07/graph-algorithm-bipartite-graphdfs-2248	Graph Algorithm Bipartite Graph DFS What is a Bipartite GraphA Bipartite Graph is a graph whose vertices can be divided into two independent sets U and V such that every edge u v either connects a vertex from U to V or a vertex from V to U In simple words a graph is said to be a Bipartite Graph if we are able to colour the graph using colours such that no adjacent nodes have the same colour If the graph has an odd length cycle it is not a bipartite graph Two vertices of the same set will be connected which contradicts the Bipartite definition saying there are two sets of vertices and no vertex will be connected with any other vertex of the same set If the graph has an even length cycle it is said to be a bipartite graph In the previous week we discussed about Bipartite graph checking using BFS algorithm Lets try Depth First Search algorithm Bipartite Graph Checking using Depth First Search Algorithm AlgorithmInitialize an integer colour array with all values This colour array stores three values means not colored and not visited means visited and colored using colour means visited and colored using colour Run a loop from the start node to the end node and start our DFS algorithm Useful for disconnected graph Our DFS function passes the following properties and do recursion dfsFunction graph node colourArray colourToBeColoured Check if the current node is already colored If already colored return true only if colored with the same colour that needs to be colored Else return false If the current node is not colored color the current node with colourToBeColoured Traverse through the children of the current node Do dfs on the children If the method returns false in any of the recursion two adjacent nodes are colored with the same color and the graph is not bipartite ExampleBipartite GraphNot a Bipartite Graph Time and Space ComplexityWe are traversing through all the nodes and edges So time complexity will be O V E where V vertices or node E edges We use a color array and an adjacency list for the graph So the space complexity will be O V O V E extra space for the recursion stack CodeOriginally Published on LinkedIn Newsletter Practice ProblemBipartite Graph Github Link Rohithv LeetCodeTopInterviewQuestions Leetcode Top Interview questions discussed in Leetcode LeetCodeTopInterviewQuestionsLeetcode Top Interview questions discussed in Leetcode Also Question answered from CodeSignal com View on GitHub	2022-04-11 11:14:31
海外TECH	DEV Community	How to fix all build errors in react native(Android specific).	https://dev.to/stan6453/how-to-fix-all-build-errors-in-react-nativeandroid-specific-241f	How to fix all build errors in react native Android specific When I first started to build Android apps with react native I was soo frustrated with the framework and almost gave up on it This is because anytime I tried to compile the app with npx react native run android I run into a lot of errors Fixing one error after days of google searching and reading through stack overflow threads produces a different set of errors which will then take another few days to resolve and the process repeats until you eventually give up or the app miraculously compiles It was a nightmare In this article I will be showing you how to avoid all the errors I have encountered and how to avoid them or fix them in case you run across them while developing your app in react native Always read the documentation of a package or its npm repository page for how to correctly install a packageThis is a common source of error when building apps with react native Sometimes you don t have the time to read the step by step processes involved in installing and setting up the package to work with your application so you rush through the installation guide and end up missing an important step required to integrate the package with the platform you are working with React native compiles code to a specific native platform This means that sometime to make a package to work with a platform for example android you have to make some changes to native code and build tools Lets take a popular framework for example react native vector icons which is a library that allows you to use vector icons from different vector icons toolkits all in one place including FontAwesome Ionicons MaterialIcons AntDesign and so on You install this package using npm install react native vector iconsAnd then you can start using the library well…not quite If this is all you do then be ready for some nasty errors and frustration As you can see from you need to make some changes in Xcode if you are building for iOS and you also need to make some changes to files inside the android folder if you want this package to work with the android platform Specifically for android you have to make changes to these files android app build gradle android app src main assets fonts android settings gradle android app src main java lt your android app package name gt MainApplication javaas specified by the link above The setup might be quite tedious but strictly following the steps judiciously will save you a lot more headache down the line There are some packages that require you to install other packages for it to work correctly take for example react navigation native library which requires you to install react native screens and react native safe area context But on android devices react native screens requires you to configure android app src main java lt your android app package name gt MainActivity java adding the following to the MainActivity class Overrideprotected void onCreate Bundle savedInstanceState super onCreate null and requires you to add an import statement at the top of this file import android os Bundle before you can start using the library in your project Basically any library you install withnpm install lt package name gt make sure you find and follow the installation instruction for that package Also if eventually you need to update a package or maybe you are creating a new react native app in which you decide to use a newer version of a package make sure you check for breaking changes and check if additional steps are required to make the new version work Deprecated Gradle features were used in this build making it incompatible with Gradle or other similar error with other Gradle versions Basically what this error is trying to tell you is that this particular package does not support the Gradle version you are using for your android build Everyone has dealt with this error at one point if you ve use npx react native init lt Project name gt to generate a new react native application Why does this error happen This happens because react native init is always shipping the latest version of Gradle to your android project and third party libraries might not have support for that Gradle version making your Gradle version incompatible with the library What you need to do is install a earlier version of Gradle for your project and then rebuild your app Step install a earlier version of GradleTo see your version of Gradle go to the android folder of your project and type gradlew v cd androidgradlew vGo to Scroll down to the Update Gradle section Here you will see a table of Gradle version and Plugin version As you can see during the time of this writing the latest Gradle version is and the associating Plugin version is As a rule what I normally do is pick the previous Gradle version steps away from the latest version In this case it is Gradle version is and the associating Plugin version is You can pick the Gradle version that is most suitable for you Now open android build gradle in a text editor you will see something like this buildscript dependencies classpath com android tools build gradle NOTE Do not place your application dependencies here they belong in the individual module build gradle files classpath com android tools build gradle is in the form classpath com android tools build gradle Therefore change the plugin version to the version you chose from the table above this line will now be classpath com android tools build gradle Open android gradle warpper gradle wrapper properties in a text editor You will see something similar to this distributionBase GRADLE USER HOMEdistributionPath wrapper distsdistributionUrl https services gradle org distributions gradle all zipzipStoreBase GRADLE USER HOMEzipStorePath wrapper distsWe are interested in the line distributionUrl https services gradle org distributions gradle all zipthis line is in the formdistributionUrl https services gradle org distributions gradle lt gradle version gt all zipChange the Gradle version to match the plugin version you selected this line should then look like this when you are done distributionUrl https services gradle org distributions gradle all zipStep Rebuild the appFrom your project folder run the following command rm r android build rm r android app src release res rm r android app build intermediatesAll this command does is delete the previous build of the app by deleting the folders that contain them you can delete the folders manually if you like android build android app src release res android app build intermediates when you are done go into the android folder and clean gradle cd androidgradlew cleanmake sure you now have the Gradle version you specified gradlew vGo back to your root project folder and build the app cd npx react native run androidYour app should now build smoothly with all Deprecated Gradle features were used in this build errors now gone If the error continues try a more earlier Gradle version Don t go too far back though Expiring Daemon because JVM Java Virtual Machine heap space is exhausted When you are building your react native android app you might encounter the error heap limit allocation failed this happens when you have a lot of libraries and your app becomes larger This error mostly shows up when you are generating the release AAB of your android app after signing it with a release key to upload on Google Play Store To fix this you will have to increase the heap memory allocation To do this open the file android gradle properties in a text editor and add the following lines to the end org gradle daemon trueorg gradle jvmargs Xmxg XX MaxPermSize m XX HeapDumpOnOutOfMemoryError Dfile encoding UTF Then open the file android app build gradle in a text editor Add the following under the android task android dexOptions javaMaxHeapSize g Your app should now build smoothly with no error These errors are the root of most errors in react native android build fails Fixing it will save you from a lot of errors that crop up from fragmental solutions If you are still having trouble with these errors as I did or are hoping to start android app development with react native I hope this will save you a lot of time stress and energy better spent in doing productive work	2022-04-11 11:09:45
海外TECH	DEV Community	Do you contribute to open source projects?	https://dev.to/medusajs/do-you-contribute-to-open-source-projects-11b	Do you contribute to open source projects Medusa is an open source ecommerce platform One of the reasons we made it open source is because we love the open source community and how we can share code with everyone around the world as well as borrow from others Do you contribute to open source projects What projects have you contributed to and what kind of contributions have you made	2022-04-11 11:09:38
海外TECH	DEV Community	Understanding Javascript Async Race Conditions	https://dev.to/devsimplicity/understanding-javascript-async-race-conditions-19oh	Understanding Javascript Async Race ConditionsThe term race condition is usually applied to the conflict in accessing shared variables in a multi threading environment In Javascript your JS code is executed only by a single thread at a time but it s still possible to create similar issues This is a common problem when people are just blindly making their functions async without thinking about the consequences Let s take a very simple example lazy loading some kind of single instance resource The synchronous version is simple let res function get resource if res res init resource return res Asynchronous version let res async function get resource if res res await init resource return res Imagine get resource being called in a web server on every request If enough time passes between the first and the second request everything will work fine But what happens if you get more requests while the first one is still waiting for the resource This can lead to serious problems that are very hard to debug More examplesHere are some examples from this HN thread Account balance async function deduct amt var balance await getBalance if balance gt amt return await setBalance balance amt And more subtle example async function totalSize fol const files await fol getFiles let totalSize await Promise all files map async file gt totalSize await file getSize totalSize is now way too small return totalSize Possible solutionsThe best way to avoid these types of problems is to avoid async functions where it s not absolutely necessary see Functional core imperative shell If it s not possible you may want to consider using Mutex from Mutual Exclusion once someone acquires the lock other requests will be blocked until the original holder release the lock i e with async mutex package our previous example may look like this let res async function get resource await mutex runExclusive async gt if res res await init resource return res async mutex has also support for semaphores it s a similar concept but multiple locks can be acquired Note this is a snapshot of WIP topic from the Understanding Simplicity wiki All suggestions and reactions are welcome You can find the latest version here Understanding Javascript Async Race Conditions	2022-04-11 11:06:00
海外TECH	DEV Community	I'm looking for Backend Developer	https://dev.to/vladimirhr/im-looking-for-backend-developer-1kp7	I x m looking for Backend DeveloperVacancy description We are a product company that develops an application that allows you to find out all the information about a person from the network Enter a name upload a photo and get information about hobbies circle of friends recent actions taken everything that can be learned about a person from open sources Work format remoteEmployment full part from hours Salary range from Company name PostufThe site of the company Founder s social media Job link Contacts Vladimir Telegram WhatsApp	2022-04-11 11:04:37
海外TECH	Engadget	The Morning After: Google and iFixit collaborate on parts to help you repair Pixel phones	https://www.engadget.com/the-morning-after-google-and-i-fixit-repair-pixel-phones-111719711.html?src=rss	The Morning After Google and iFixit collaborate on parts to help you repair Pixel phonesGoogle is the latest phone maker to join Apple and Samsung in giving you resources to fix phones yourself It s partnering with the tinkerer of all tinkerers iFixit to provide official parts for Pixel phones later this year Notably the initiative will cover models ranging from the Pixel from through to the Pixel Pro and beyond According to the announcement you ll get access to a quot full range quot of components like batteries cameras and displays whether you buy them individually or with iFixit s own Fix Kit tools It s shaping up to be an interesting year for people willing to repair their own phones We still haven t had a chance to see how Apple s iPhone repair proposal will fare in real life ーhow hard is it going to be ーbut Google is being smart by pairing with arguably the go to people for those willing to take their phone s life into their own hands ーMat Smith nbsp The biggest stories you might have missedElon Musk won t join Twitter s board of directors after allApple Watch Series models drop to plus the rest of the weekend s best tech dealsGoogle blocks Russian parliament YouTube channelD CT scans make even ketchup caps look cool Dancing with the Stars will be the first live TV show on Disney Hummer EV first driveAn enormous electric super truckEngadgetThe Hummer has always been ostentatious So it s no surprise the Hummer EV is not only large but also heavy and really not all that efficient as an EV But what it lacks in miles per kilowatt it makes up for in over the top fun Roberto Baldwin got to drive the larger than life SUV and it proved to be a capable off roader that showcases GM s Ultium platform It is still at its core a Hummer Continue reading iOS could include upgraded health tracking featuresBut don t expect an UI redesign The next major update of iOS could include “significant enhancements according to Bloomberg s Mark Gurman In his latest Power On newsletter Gurman anticipates iOS will include an update to notifications and an assortment of new health tracking features Gurman added that the Apple Watch s watchOS may include upgrades to its activity and health tracking features but stopped short of sharing specifics Boo Continue reading Sonic the Hedgehog has the best opening weekend for a video game movieBreaking the record set by…the first Sonic movie ParamountWith a million debut at the domestic box office Sonic the Hedgehog has set a new record for the US film debut of a video game adaptation beating the previous high watermark set by its predecessor in The sequel made million during its opening weekend and Paramount now plans to expand this success into a cinematic universe What have you done Continue reading Police got confused trying to pull over an autonomous Cruise vehicle Step outside the vehicle please Since February GM s Cruise self driving unit has offered public taxi rides across San Francisco And so far the service hasn t had many issues A video from April nd showed San Francisco police attempting to pull over a driverless Cruise vehicle in the city s Richmond District only for the car to temporarily take off Watch for the confusion Watch the first trailer for Kingdom Hearts IV Disney Final Fantasy and a kinda Tokyo Square EnixDuring an event celebrating the franchise s th anniversary we got our first proper glimpse at the next Kingdom Hearts game Kingdom Hearts IV marks the return of Sora after s Kingdom Hearts III seemingly concluded the story arc that began with the original game in The trailer showed Sora waking up in a city called Quadratum a Tokyo inspired city rendered in a semi realistic way marking a major artistic shift for the series The city is soon attacked by a towering monster and the story centric opening scenes seamlessly transition to gameplay…and fighting Continue reading	2022-04-11 11:17:19
医療系	医療介護 CBnews	小6で家族の世話、1日に7時間以上も-小学生対象に初調査、厚労省	https://www.cbnews.jp/news/entry/20220411194440	兄弟姉妹	2022-04-11 20:37:00
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海外ニュース	Japan Times latest articles	Japan detects first case of omicron XE variant	https://www.japantimes.co.jp/news/2022/04/11/national/japan-first-omicron-xe-variant/	march	2022-04-11 20:01:35
ニュース	BBC News - Home	Sir David Amess: Man found guilty of murdering MP	https://www.bbc.co.uk/news/uk-england-essex-61026210?at_medium=RSS&at_campaign=KARANGA	october	2022-04-11 11:55:25
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ニュース	BBC News - Home	Rishi Sunak refers himself to Boris Johnson's ethics adviser	https://www.bbc.co.uk/news/uk-politics-61061533?at_medium=RSS&at_campaign=KARANGA	adviser	2022-04-11 11:31:40
ニュース	BBC News - Home	Dynamo Kyiv: Ukrainian champions decamp to Bucharest to spread story of grief and hope	https://www.bbc.co.uk/sport/football/61055280?at_medium=RSS&at_campaign=KARANGA	Dynamo Kyiv Ukrainian champions decamp to Bucharest to spread story of grief and hopeThe players of Ukrainian champions Dynamo Kyiv have had their lives turned upside down by war but football is offering them hope	2022-04-11 11:02:52
ニュース	BBC News - Home	Steph Houghton: End of era for England as Man City defender hands over captaincy	https://www.bbc.co.uk/sport/football/61042794?at_medium=RSS&at_campaign=KARANGA	Steph Houghton End of era for England as Man City defender hands over captaincySteph Houghton has been the figurehead for the Lionesses for eight years but Leah Williamson will now take on the role of captain	2022-04-11 11:03:24
ニュース	BBC News - Home	MLB: Watch Miami Marlins' Jazz Chisholm Jr take stunning one-handed catch	https://www.bbc.co.uk/sport/av/baseball/61066857?at_medium=RSS&at_campaign=KARANGA	MLB Watch Miami Marlins x Jazz Chisholm Jr take stunning one handed catchWatch Miami Marlins Jazz Chisholm Jr take a stunning one handed catch in their defeat by the San Francisco Giants in the MLB	2022-04-11 11:23:36
サブカルネタ	ラーブロ	旭川ラーメン みづの しお篇	http://ra-blog.net/modules/rssc/single_feed.php?fid=198066	中央図書館	2022-04-11 12:09:12
北海道	北海道新聞	日ロサケ・マス漁業交渉開始　漁業関係者から安どの声　早期妥結に期待	https://www.hokkaido-np.co.jp/article/668273/	交渉開始	2022-04-11 20:27:05
北海道	北海道新聞	生活困窮者に支援金給付を　物価高対策、自民が提言へ	https://www.hokkaido-np.co.jp/article/668272/	生活困窮者	2022-04-11 20:21:00
北海道	北海道新聞	国内で３万３２０５人感染　死者３４人、新型コロナ	https://www.hokkaido-np.co.jp/article/668271/	新型コロナウイルス	2022-04-11 20:19:00
北海道	北海道新聞	ロシア、年内の国債発行停止　財務相、法的措置も	https://www.hokkaido-np.co.jp/article/668267/	法的措置	2022-04-11 20:15:00
北海道	北海道新聞	自民、敵基地攻撃力を党内議論　４月下旬に安保提言策定へ	https://www.hokkaido-np.co.jp/article/668264/	安全保障	2022-04-11 20:07:00
仮想通貨	BITPRESS（ビットプレス）	[CoinDesk Japan] マネックス松本CEO：コインチェックを米国上場させる覚悟と真の狙い	https://bitpress.jp/count2/3_9_13158	coindeskjapan	2022-04-11 20:42:41