投稿時間:2023-03-21 02:25:00 RSSフィード2023-03-21 02:00 分まとめ(29件)

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AWS	AWS Database Blog	Use Region pinning to set a home Region for items in an Amazon DynamoDB global table	https://aws.amazon.com/blogs/database/use-region-pinning-to-set-a-home-region-for-items-in-an-amazon-dynamodb-global-table/	Use Region pinning to set a home Region for items in an Amazon DynamoDB global tableAmazon DynamoDB global tables provide a fully managed scalable solution for deploying a multi Region multi active database that s replicated across multiple AWS Regions Global tables allow applications to read and write data to a table with the data automatically replicated across all Regions that are associated with that table Global tables are ideal for applications that …	2023-03-20 16:09:41
AWS	AWS Database Blog	Optimize costs by moving your self-managed open source software (OSS) Redis workloads to Amazon ElastiCache	https://aws.amazon.com/blogs/database/optimize-costs-by-moving-your-self-managed-open-source-software-oss-redis-workloads-to-amazon-elasticache/	Optimize costs by moving your self managed open source software OSS Redis workloads to Amazon ElastiCacheIn this blog post we explain why you should consider moving your self managed open source software OSS Redis workloads to managed Amazon ElastiCache for Redis OSS Redis is a powerful in memory data store designed to meet the demands of modern high performance applications With OSS Redis you can tackle a wide range of use cases including caching …	2023-03-20 16:03:13
AWS	AWS Developer Blog	Configuring .NET Garbage Collection for Amazon ECS and AWS Lambda	https://aws.amazon.com/blogs/developer/configuring-net-garbage-collection-for-amazon-ecs-and-aws-lambda/	Configuring NET Garbage Collection for Amazon ECS and AWS Lambda NET developers rely on NET s automatic memory allocation and garbage collection GC mechanisms to handle the memory needs of their applications For most use cases GC isn t something developers need to worry about However in modern architectures where NET applications are running in memory constrained environments like containers and AWS Lambda functions the GC might …	2023-03-20 16:03:28
AWS	lambdaタグが付けられた新着投稿 - Qiita	【Node.js】LambdaからDynamoDBテーブルをScanする際に設定するFilterExpressionの書き方【後編】	https://qiita.com/neko_tech/items/61849889d8e30391162c	dynamo	2023-03-21 01:15:27
AWS	lambdaタグが付けられた新着投稿 - Qiita	【Node.js】LambdaからDynamoDBテーブルをScanするコードの書き方【前編】	https://qiita.com/neko_tech/items/58aad845e254ca8f53c4	dynamodb	2023-03-21 01:15:18
python	Pythonタグが付けられた新着投稿 - Qiita	WBCメキシコ戦、サンドバル投手を調べる	https://qiita.com/ussu_ussu_ussu/items/e825406097e051effa7a	投手	2023-03-21 01:47:40
python	Pythonタグが付けられた新着投稿 - Qiita	【備忘録】OpenCVによるカメラキャリブレーション	https://qiita.com/dokaben/items/a559e985a523cf45fa50	opencv	2023-03-21 01:45:26
Ruby	Rubyタグが付けられた新着投稿 - Qiita	[Ruby][アルゴリズム問題]回文の文字列	https://qiita.com/Yukina_28/items/79ef81c4f91371297305	inputsbabadoutputb	2023-03-21 01:32:53
AWS	AWSタグが付けられた新着投稿 - Qiita	【Node.js】LambdaからDynamoDBテーブルをScanする際に設定するFilterExpressionの書き方【後編】	https://qiita.com/neko_tech/items/61849889d8e30391162c	dynamo	2023-03-21 01:15:27
AWS	AWSタグが付けられた新着投稿 - Qiita	【Node.js】LambdaからDynamoDBテーブルをScanするコードの書き方【前編】	https://qiita.com/neko_tech/items/58aad845e254ca8f53c4	dynamodb	2023-03-21 01:15:18
技術ブログ	Developers.IO	AWS IAM Identity Center を利用して Azure AD のユーザー情報で AWS アカウントへのアクセスを試してみる	https://dev.classmethod.jp/articles/federate-azure-ad-and-aws-iam-identity-center/	awssinglesign	2023-03-20 16:13:57
海外TECH	MakeUseOf	How to Enable Adobe Acrobat Reader's Dark Mode to Read PDFs in a Dark Theme	https://www.makeuseof.com/tag/give-adobe-reader-a-dark-theme-for-easier-pdf-reading/	bright	2023-03-20 16:30:16
海外TECH	MakeUseOf	How to Fix Windows Update Automatically Replacing Your AMD Graphics Driver	https://www.makeuseof.com/windows-update-replaced-amd-graphics-drivers/	automatically	2023-03-20 16:15:17
海外TECH	DEV Community	How to be Better in React Code Reusability - Part2	https://dev.to/aradwan20/how-to-be-better-in-react-code-reusability-part2-5cc2	How to be Better in React Code Reusability PartHow Can We Achieve Reusability in React Step Identify the Reusable ComponentThe first step in creating a reusable component in a React application is to identify the particular component used that needs to be made reusable Look for components that are used in multiple places throughout the application and have similar functionality Step Determine the Component s APIThe second step in creating a reusable component in React is to determine the component s API or the set of properties and methods that the component will expose to other components The API should be well documented and easy to use Step Write the Component s CodeThe third step in creating a reusable component in React is to write the component s code The code should be clean easy to read and well organized The component should be designed to be flexible and customizable with a clear separation of concerns Step Test the ComponentThe fourth step in creating a reusable component in React is to test the component The component should be tested thoroughly to ensure that it works as expected and that react components can handle various use cases Step Publish the ComponentThe final step in creating a reusable component in React is to publish the component The component can be published as a package on a package manager like npm or it can be shared as a component library within the organization Here is an example of a reusable component in React that displays a list of items import React from react function ItemList props const items renderItem props return lt ul gt items map item index gt lt li key index gt renderItem item lt li gt lt ul gt export default ItemList In this example the ItemList component is a reusable component that displays a list of items It takes two props items which is an array of items to be displayed and renderItem which is a function that takes an item as an argument and returns the JSX to be rendered for that item The ItemList component s API is well defined it takes an array of items and a function to render each item This makes the component flexible and customizable and allows it to be used in various contexts The code for the ItemList component is clean easy to read and well organized The component is designed to be flexible and customizable with a clear separation of concerns The ItemList component should be thoroughly tested to ensure that it works as expected and can handle various use cases Once the component has been tested and is ready for use it can be published as a package or shared as a component library within the organization Four Major Challenges React Developers FaceWhen sharing components across multiple projects in React conflicts and naming collisions can arise These issues can be addressed by following these best practices Use Unique NamespacesUsing unique namespaces can help to avoid naming collisions A namespace is a prefix that is added to a component s name to make it unique For example if two projects use a component called Button one project could add a namespace of ProjectA to the component and the other project could add a namespace of ProjectB to the component In Project Aimport Button as ProjectAButton from component library In Project Bimport Button as ProjectBButton from component library In this example the Button component from the component library package is imported with a different name in each project using a namespace to the class component to make it unique Use Scoped PackagesUsing scoped packages can help to avoid conflicts between packages A scoped package is a package with a name that includes a scope such as my org my package Scoped packages are guaranteed to be unique making it easy to avoid naming collisions npm install my org component libraryIn this example the component library package is a scoped package with the scope my org This makes it easy to avoid naming collisions between packages Use VersioningUsing versioning can help to avoid conflicts between different versions of a package When a package is updated the version number is incremented By specifying a version number when installing a package you can ensure that you are using a specific version of the package npm install component library In this example the component library package is installed at version By specifying the version number you can ensure that you are using a specific version of the package and avoid conflicts with other versions Document DependenciesDocumenting package dependencies can help to avoid conflicts between packages By documenting the package dependencies you can ensure that the correct versions of packages are used together dependencies react component library In this example the component library package is listed as a dependency in the package json file The version number is specified with a caret which means that the package can be updated to a newer minor or patch version but not a newer major version By specifying the correct version of the package you can ensure that it is used with the correct version of other packages and avoid conflicts Managing Dependencies of Reusable ComponentsWhen creating reusable components in React it is important to manage dependencies effectively Dependencies are external packages or modules that a component relies on to function Here are some best practices for managing dependencies of reusable components Use Package ManagersUse a package manager like npm or Yarn to manage dependencies Package managers make it easy to install and update dependencies and ensure that the correct versions of dependencies are used npm install my component libraryIn this example the my component library package is installed using the npm package manager Specify DependenciesSpecify the dependencies of a component in the component s documentation or in the package json file This makes it clear which dependencies the component relies on name my component library version dependencies react lodash In this example the my component library package specifies the react and lodash packages as dependencies in the package json file Use Peer DependenciesUse peer dependencies to specify dependencies that are expected to be provided by the consumer of the component Peer dependencies are dependencies that are not installed with the component but are expected to be installed by the consumer name my component library version peerDependencies react lodash In this example the my component library package specifies the react and lodash packages as peer dependencies in the package json file This means that the consumer of the component is expected to install these packages separately Keep Dependencies Up to DateKeep dependencies up to date by regularly updating them to the latest version This can help to ensure that the component is compatible with the latest versions of its dependencies npm update my component libraryIn this example the my component library package is updated to the latest version using the npm package manager Test with Different Versions of DependenciesTest the component with different versions of its dependencies to ensure that it is compatible Use a tool like npx create react app to create a new React project with the desired versions of the dependencies Then import the component and test it in the new project import React from react import ReactDOM from react dom import MyComponent from my component library ReactDOM render lt MyComponent gt document getElementById root In this example the MyComponent component from the my component library package is imported and used in a new React project with the desired versions of the dependencies This can help to ensure that the component is compatible with the desired versions of the dependencies ConclusionTo sum it up in clear points here are the key steps to follow Keep Components Small and Function SpecificIt is important to keep components small and to the point of a specific task This makes it easier to reuse the component in different contexts and reduces the likelihood of conflicts with other components Use Higher Order Components HOC Higher order components are functions that take a component as an argument and return a new component with additional functionality This can help to improve code reusability by separating concerns and making it easier to add or remove functionality Use Render PropsRender props are a pattern where a component receives a function as a prop which it then calls to render content This can help to improve code reusability by allowing components to be more flexible and customizable Use ContextContext is a way to share data between components without having to pass props down through the component tree This can help to improve code reusability by making it easier to share data between components and reducing the need for prop drilling and unnecessary rendering Use React HooksReact hooks are functions that allow functional components to use state and other React features that were previously only available in class components Hooks can help to improve code reusability by making it easier to share logic between components and reducing the need to duplicate code for higher order components In conclusion code reusability is an important aspect of building maintainable and scalable applications in React By following the best practices outlined in this article and the previous one you can create reusable components that are flexible customizable and easy to maintain	2023-03-20 16:24:36
海外TECH	DEV Community	Bash vs Python Scripting: A simple practical guide	https://dev.to/husseinalamutu/bash-vs-python-scripting-a-simple-practical-guide-16in	Bash vs Python Scripting A simple practical guideBash and Python are two popular scripting languages used for automation and system administration tasks This article aims to provide a simple practical guide for beginners to understand the differences between Bash and Python scripting and when to use each one By the end of this article readers will have a better understanding of the basics of Bash and Python scripting as well as their strengths and weaknesses in different scenarios Bash ScriptingWhat is Bash amp Bash Scripting Bash is a command line shell used on Linux macOS and other Unix like operating systems While Bash scripting is commonly used for automation system administration and software deployment tasks Bash scripts are easy to write and execute and they can perform complex operations using a few lines of code Bash provides many built in commands such as echo used to print cd to change directory ls list and grep searches for a match to a given pattern that can be used in scripts Bash scripts can be used to manipulate files perform backups and configure system settings among other tasks Basics of Bash ScriptingHere s an explanation of the basics of Bash scripting Variables In Bash a variable is used to store a value such as a number or a string Variables can be declared and assigned a value using the equals sign For example x assigns the value to the variable x Conditionals In Bash conditionals are used to make decisions based on a certain condition The if statement is used to check whether a condition is true and the else statement is used to specify what to do if the condition is false For example x if x gt then echo x is greater than else echo x is less than or equal to fiLoops In Bash loops are used to iterate over a sequence of values or to repeat a block of code a certain number of times The for loop is used to iterate over a sequence of values while the while loop is used to repeat a block of code as long as a certain condition is true For example Using a for loop to iterate over a list of valuesfruits apple banana cherry for fruit in fruits do echo fruit done Using a while loop to repeat a block of codex while x lt do echo x x x doneFunctions In Bash functions are used to encapsulate a block of code that can be called repeatedly with different inputs Functions are defined using the function keyword and they can have inputs and outputs For example Defining a function to calculate the area of a rectanglefunction calculate rectangle area width height area width height echo area Calling the function with different inputsecho calculate rectangle area Output echo calculate rectangle area Output These are the basic building blocks of Bash scripting and they can be combined to create more complex scripts More Bash ScriptsHere are some examples of Bash scripts for common tasks File manipulation A script that renames all files in a directory with a specific extension to have a new prefix A script that searches for a particular string in a file and replaces it with a new value A script that compresses all files in a directory into a single archive file Check this github repo for sample scripts of the above bash scripting System administration A script that backs up all files in a directory to a remote server using secure copy SCP A script that monitors system logs for a particular error and sends an email alert when it occurs A script that automates the installation of software packages and updates on multiple servers For the system administration part here s an example of a Bash script that automates the installation of software packages and updates on multiple servers bin bash List of servers to updateservers server server server Software packages to installpackages apache mysql server php Update package lists on all serversfor server in SERVERS do ssh server sudo apt get update done Install packages on all serversfor server in SERVERS do ssh server sudo apt get install PACKAGES y doneIn this script we first define a list of servers to update and a list of packages to install or update We then loop through each server in the list and run the apt get update command to update the system packages We then loop through each package in the list and install or update it using the apt get install command The y option is used with apt get install to automatically answer yes to any prompts during the installation process Note that this script assumes that you have SSH access to the servers and that you have sudo privileges to install software packages Python ScriptingWhat is Python amp Python Scripting Python is a general purpose programming language used for a wide range of applications including web development data analysis AI and machine learning Python provides a clear concise syntax that is easy to read and writePython has a large standard library and many third party modules that can be used to perform complex operationsPython scripting is commonly used for automation data processing and scientific computing tasks Python scripts can be used to scrape data from websites process large datasets and automate repetitive tasks among other things Basics of Python ScriptingHere s an explanation of the basics of Python scripting Variables In Python a variable is used to store a value such as a number or a string Variables can be declared and assigned a value using the equals sign For example x assigns the value to the variable x Conditionals In Python conditionals are used to make decisions based on a certain condition The if statement is used to check whether a condition is true and the else statement is used to specify what to do if the condition is false For example x if x gt print x is greater than else print x is less than or equal to Loops In Python loops are used to iterate over a sequence of values such as a list or a string The for loop is used to iterate over a sequence of values while the while loop is used to repeat a block of code as long as a certain condition is true For example Using a for loop to iterate over a listfruits apple banana cherry for fruit in fruits print fruit Using a while loop to repeat a block of codex while x lt print x x Functions In Python functions are used to encapsulate a block of code that can be called repeatedly with different inputs Functions are defined using the def keyword and they can have inputs and outputs For example Defining a function to calculate the area of a rectangledef calculate rectangle area width height area width height return area Calling the function with different inputsprint calculate rectangle area Output print calculate rectangle area Output These are the basic building blocks of Python scripting and they can be combined to create more complex programs Python Modules amp How to Use Them in ScriptsPython modules are pre written pieces of code that can be imported into a script to add functionality such as working with files processing data sending emails and more Here are some common Python modules and how to use them in scripts os module This module provides a way to interact with the underlying operating system Functions like os chdir to change the current working directory os mkdir to create a new directory and os path exists to check if a file or directory exists can be used Example import os Change the current working directoryos chdir path to new directory Create a new directoryos mkdir new directory Check if a file existsif os path exists path to file print File exists else print File does not exist datetime module This module provides a way to work with dates and times Functions like datetime datetime now to get the current date and time datetime timedelta to calculate the difference between two dates or times and datetime datetime strptime to convert a string to a date or time object can be used Example import datetime Get the current date and timecurrent time datetime datetime now print current time Calculate the difference between two dates or timestime diff datetime timedelta days yesterday current time time diffprint yesterday Convert a string to a date or time objectdate string date object datetime datetime strptime date string Y m d print date object csv module This module provides a way to read and write comma seperated value CSV files Functions like csv reader to read a CSV file and csv writer to write to a CSV file can be used Example import csv Read a CSV filewith open data csv r as f reader csv reader f for row in reader print row Write to a CSV filewith open output csv w as f writer csv writer f writer writerow Name Age City writer writerow Alice New York writer writerow Bob San Francisco shutil module The shutil module provides a higher level interface for working with files and directories than the os module It provides functions for copying moving and deleting files and directories For example import shutil Copy a file from one directory to anothershutil copy source file txt destination file txt Move a file from one directory to anothershutil move source file txt destination file txt Delete a fileos remove file txt requests module The requests module provides a way to send HTTP requests and handle responses You can use it to download files interact with web APIs and scrape web pages Example usage import requests Download a fileurl response requests get url with open file txt wb as file file write response content Get data from a web APIurl response requests get url headers Authorization Bearer YOUR TOKEN data response json These are just a few examples of common Python modules and their usage There are many other modules available that can help you accomplish various tasks in your scripts You can search for them in the Python Package Index PyPI or through the Python documentation Python Scripts for Common Tasks Web ScrapingPython is a popular language for web scraping as it provides easy to use libraries like BeautifulSoup and requests Here s an example script that scrapes the top headlines from the BBC News website import requestsfrom bs import BeautifulSoupurl response requests get url soup BeautifulSoup response text html parser headlines soup find all h class gs c promo heading title for headline in headlines print headline text This script uses the requests library to send an HTTP GET request to the BBC News website and fetch the HTML content It then uses the BeautifulSoup library to parse the HTML and extract the headlines using a CSS selector	2023-03-20 16:14:00
Apple	AppleInsider - Frontpage News	Clean junk files from your Mac with Intego Washing Machine X9	https://appleinsider.com/articles/23/03/20/clean-junk-files-from-your-mac-with-intego-washing-machine-x9?utm_medium=rss	Clean junk files from your Mac with Intego Washing Machine XSpring is the perfect time to clean up your Mac and there s nothing better than professional software like Mac Washing Machine X from Intego s famous software suite to do the job Mac Washing Machine X from IntegoMacs are efficient and typically maintain themselves quite well without our intervention thanks to the way macOS works But over time and with heavy use they can slow down or simply become cluttered with unnecessary files Read more	2023-03-20 16:56:42
Apple	AppleInsider - Frontpage News	Amazon slashing 9,000 more jobs in fresh round of layoffs	https://appleinsider.com/articles/23/03/20/amazon-to-cull-9000-more-jobs-in-fresh-round-of-layoffs?utm_medium=rss	Amazon slashing more jobs in fresh round of layoffsAmazon is preparing another round of layoffs with more roles to be cut from its human resources advertising Twitch and Amazon Web Services teams Amazon logoThe tech giant jobs bloodbath continues with Amazon the latest to initiate a second round of layoffs In a note from Amazon CEO Andy Jassy released on Monday another wave will hit the retail giant s workforce in the coming weeks Read more	2023-03-20 16:22:33
Apple	AppleInsider - Frontpage News	Leaked iPhone 15 Pro images back up solid state button rumor	https://appleinsider.com/articles/23/03/20/leaked-images-back-up-solid-state-iphone-15-pro-button-rumor?utm_medium=rss	Leaked iPhone Pro images back up solid state button rumorApple leaker ShrimpApplePro has shared new iPhone Pro renders showing a unified volume and mute buttons Render of new buttons on the iPhone Pro modelsThe iPhone Pro versions are anticipated to include a single long button for controlling the volume rather than two buttons for volume up and volume down And though Apple has included a mute switch since the original iPhone upcoming models might feature a mute button Read more	2023-03-20 16:22:43
海外TECH	Engadget	8BitDo controllers now work with Apple devices	https://www.engadget.com/8bitdo-controllers-now-work-with-apple-devices-163657954.html?src=rss	BitDo controllers now work with Apple devicesYou no longer need to pass on BitDo s gamepads if you use Apple products BitDo has confirmed that its controllers now officially support iPhones iPads and Macs thanks to both firmware upgrades and Apple s recent iOS iPadOS tvOS and macOS updates The compatibility is limited to the Lite SE Pro Pro SN Pro SN Pro for Android and Ultimate Controller g but more models are quot incoming quot The company s offerings are already some of our favorite mobile gaming controllers and for good reason They promise good ergonomics substantial customization and in some cases a tinge of nostalgia It s relatively easy to switch between your Apple devices and other hardware such as consoles and PCs That makes them particularly handy if you re playing action games away from home or just don t want to poke at a touchscreen These aren t the only strong options for mobile controllers SteelSeries Nimbus and Stratus models are well suited to enthusiasts who want an Xbox style pad And if you want a makeshift Switch or Steam Deck the Razer Kishi is your pick Still it s good to have more choices for Apple friendly input ーparticularly if you like BitDo s priorities This article originally appeared on Engadget at	2023-03-20 16:36:57
海外TECH	Engadget	LG’s iridescent 2023 Gram Style laptops start at $1,499	https://www.engadget.com/lgs-iridescent-2023-gram-style-laptops-start-at-1499-162230620.html?src=rss	LG s iridescent Gram Style laptops start at LG announced pricing and availability today for its sleek Gram Style laptops announced at CES The Windows running ultra portables are available now ranging from to The inch LG Gram Style costs for GB storage and GB memory you ll pay to make it a TB SSD and GB of RAM Meanwhile the larger inch variant costs for TB and GB RAM while will stick with TB but move up to GB RAM In addition LG is currently offering a deal that will get you a GB memory model for the price of a GB one with the same screen size if you order from LG s website between now and April th We were intrigued by LG s stylish new notebook during our CES demo Its lid and keyboard deck are made with iridescent Gorilla Glass with a nano magnesium alloy base It has a vanishing trackpad that visually and tactilely blends into the keyboard base when you aren t using it They re light too Even the larger model weighs a mere lbs Engadget s Cherlynn Low had no problem doing a bunch of bicep curls with it However we were less sure about its build quality as the inch model yielded a bit during our lifting tests on the CES floor ーand we ve run into build quality issues with past LG Gram models The LG Gram Style has a x OLED with a HZ refresh rate for the inch model and a x OLED at Hz for the inch variant It runs on Intel s latest generation Core processors This article originally appeared on Engadget at	2023-03-20 16:22:30
海外科学	BBC News - Science & Environment	UN climate report: Scientists release 'survival guide' to avert climate disaster	https://www.bbc.co.uk/news/science-environment-65000182?at_medium=RSS&at_campaign=KARANGA	major	2023-03-20 16:36:09
ニュース	BBC News - Home	UN climate report: Scientists release 'survival guide' to avert climate disaster	https://www.bbc.co.uk/news/science-environment-65000182?at_medium=RSS&at_campaign=KARANGA	major	2023-03-20 16:36:09
ニュース	BBC News - Home	Brexit: DUP will vote against Windsor Framework plans	https://www.bbc.co.uk/news/uk-northern-ireland-65008991?at_medium=RSS&at_campaign=KARANGA	framework	2023-03-20 16:46:38
ニュース	BBC News - Home	Boris Johnson submits evidence before Partygate grilling	https://www.bbc.co.uk/news/uk-politics-65012967?at_medium=RSS&at_campaign=KARANGA	covid	2023-03-20 16:20:58
ニュース	BBC News - Home	Caversham Primary: Ofsted urged to pause inspections after teacher death	https://www.bbc.co.uk/news/uk-england-berkshire-65019341?at_medium=RSS&at_campaign=KARANGA	ofsted	2023-03-20 16:47:40
ニュース	BBC News - Home	Amazon to cut another 9,000 jobs	https://www.bbc.co.uk/news/business-65018007?at_medium=RSS&at_campaign=KARANGA	jobsthe	2023-03-20 16:40:43
ニュース	BBC News - Home	Newborn puppies saved from being dumped in carrier bag	https://www.bbc.co.uk/news/uk-england-tees-65014920?at_medium=RSS&at_campaign=KARANGA	animal	2023-03-20 16:14:15
ビジネス	ダイヤモンド・オンライン - 新着記事	米スターバックス、新体制始動　シュルツ氏は退任 - WSJ発	https://diamond.jp/articles/-/319850	退任	2023-03-21 01:06:00
Azure	Azure の更新情報	General availability: Serilog Sink for Azure Data Explorer	https://azure.microsoft.com/ja-jp/updates/general-availability-serilog-sink-for-azure-data-explorer/	serilog	2023-03-20 17:00:09