| TECH |
Techable（テッカブル） |
コクヨと岐阜市立小がIoT文具を活用した実験開始。小学校低学年の家庭学習の習慣化へ |
https://techable.jp/archives/206830
|
一人ひとり |
2023-05-13 10:00:18 |
| python |
Pythonタグが付けられた新着投稿 - Qiita |
【SIGNATE Beginner限定コンペ】“診断データを使った糖尿病発症予測” の備忘録 |
https://qiita.com/KK_Ken/items/d992155936270cce1f83
|
beginner |
2023-05-13 19:35:02 |
| python |
Pythonタグが付けられた新着投稿 - Qiita |
Event Busを作ってみよう サンプル#1 |
https://qiita.com/shiganai/items/f6dcc53a285bec618ed5
|
callapp |
2023-05-13 19:11:55 |
| Ruby |
Rubyタグが付けられた新着投稿 - Qiita |
【学習】Ruby on Rails チュートリアル 第7版 - 第3章ほぼ静的なページの作成 |
https://qiita.com/COYG_GINFF/items/b3448047e0e13b384a19
|
postgresql |
2023-05-13 19:31:04 |
| Ruby |
Rubyタグが付けられた新着投稿 - Qiita |
【RubyKaigi2023】 初耳だったruby.wasmを簡単に触ってみる |
https://qiita.com/Takaharu_01/items/fac8829bebd59c441308
|
loadgemf |
2023-05-13 19:12:46 |
| Ruby |
Railsタグが付けられた新着投稿 - Qiita |
【学習】Ruby on Rails チュートリアル 第7版 - 第3章ほぼ静的なページの作成 |
https://qiita.com/COYG_GINFF/items/b3448047e0e13b384a19
|
postgresql |
2023-05-13 19:31:04 |
| 海外TECH |
Ars Technica |
The challenges and promises of climate lawsuits |
https://arstechnica.com/?p=1938870
|
companies |
2023-05-13 10:24:44 |
| 海外TECH |
MakeUseOf |
What Is the Difference Between Network Throttling And Network Prioritization? |
https://www.makeuseof.com/difference-network-throttling-network-prioritization/
|
What Is the Difference Between Network Throttling And Network Prioritization Are you being throttled Is your internet traffic prioritized How can you tell and more importantly how can you bypass it |
2023-05-13 10:16:17 |
| 海外TECH |
DEV Community |
Golang: The Future of Programming - Introduction, Scope, and Real-World Applications |
https://dev.to/sahil_4555/golang-the-future-of-programming-introduction-scope-and-real-world-applications-2imn
|
Golang The Future of Programming Introduction Scope and Real World ApplicationsGolang also known as Go is a modern programming language developed by Google It was created to address the challenges faced by developers when building large scale software systems Go aims to provide the performance and control of low level languages like C and C while offering a simpler and more modern approach Go also places great emphasis on performance It has a highly optimized garbage collector that runs concurrently minimizing the impact on application performance Go programs are compiled to machine code resulting in high execution speed The language provides tools for profiling and benchmarking making it easy to optimize and measure the performance of your code Let s dive into the world of Golang exploring its features scope in the future and real world applications Key Features of Golang IncludeConcurrency Golang has built in support for concurrent programming through goroutines and channels Goroutines are lightweight threads that can run concurrently allowing developers to write highly parallelized code Channels facilitate communication and synchronization between goroutines Efficiency Go is known for its performance It is compiled to machine code resulting in efficient execution The language includes a garbage collector that runs concurrently minimizing interruptions to program execution Static Typing Go is a statically typed language which means that variable types are checked during compilation This helps catch errors early in the development process and improves code reliability Standard Library Go comes with a comprehensive standard library that provides functionalities for networking file I O cryptography and more The standard library is well designed and easy to use further enhancing developer productivity Concurrency in GolangGo s built in support for concurrency is one of its standout features thanks to goroutines and channels Goroutines Goroutines are lightweight concurrent functions in Go They allow you to execute functions concurrently without the overhead of heavy threads Goroutines are created using the go keyword followed by a function call They run concurrently with other goroutines enabling efficient use of system resources ChannelsChannels enable safe communication and synchronization between goroutines They are conduits for sending and receiving values of a specific type Channels ensure that data sent is received in the same order FIFO Channels are created using the make function and the chan keyword Concurrency with Goroutines and Channels Goroutines allow you to perform tasks concurrently utilizing available CPU cores efficiently Channels facilitate communication between goroutines enabling safe data sharing Goroutines can send data through channels using the lt operator Goroutines can receive data from channels using the lt operator Benefits Goroutines are lightweight and have minimal overhead Channels provide safe data sharing and synchronization Concurrency with goroutines and channels enables efficient scalable programs Real World Examples Concurrent web servers handling multiple requests simultaneously Concurrent data processing or computation tasks Parallelizing tasks in machine learning or data analysis Real Time Example of Golang Used in IT IndustryCertainly Here are some real time examples of how Golang is used in the IT industry Docker Docker the popular containerization platform is written primarily in Golang Golang s concurrency support and efficient execution make it well suited for managing containers and orchestrating container based applications Ethereum Blockchain Node Go Ethereum allows developers to run Ethereum nodes which participate in the Ethereum network verify transactions and maintain a copy of the blockchain Geth provides efficient and reliable syncing of the blockchain enabling developers to interact with the Ethereum network programmatically Kubernetes Kubernetes the leading container orchestration platform utilizes Golang for various components Golang s concurrency features and performance enable Kubernetes to handle scaling networking and managing containerized applications effectively Consul Consul a service discovery and configuration tool by HashiCorp is implemented in Golang Golang s built in concurrency features enable Consul to handle concurrent requests efficiently while providing reliable service discovery and configuration management CockroachDB CockroachDB a distributed SQL database is written in a combination of Golang and C Golang is used to build the distributed system s core components providing scalability fault tolerance and strong consistency Future and Growth of GolangGo Golang has a promising future with significant potential for growth and impact on the programming landscape Here s a concise overview of its future scope Scalable and Concurrent Applications Go s built in concurrency features such as goroutines and channels make it well suited for building scalable and concurrent applications As the demand for highly performant and efficient systems grows Go s concurrency capabilities will continue to be in high demand Cloud Native Development Go s lightweight footprint fast startup time and efficient memory management make it an excellent choice for cloud native development As more organizations migrate their applications to cloud platforms Go s suitability for microservices containerization and cloud deployment will contribute to its future growth DevOps and Infrastructure Tooling Go s static binary compilation and easy deployment make it ideal for building command line tools and infrastructure software With the rise of DevOps practices and the need for efficient infrastructure tooling Go s simplicity and performance will continue to drive its growth in this area Internet of Things IoT Go s efficient execution and low resource consumption make it well suited for developing software in the IoT space As the IoT industry expands Go s ability to handle concurrent operations and communicate with diverse devices will contribute to its future scope and growth Language Evolution and Ecosystem The Go language continues to evolve with regular releases and improvements Its ecosystem is maturing with a growing number of libraries frameworks and tools available for various use cases The active community and contributions from developers worldwide ensure that Go remains relevant and up to date with emerging technologies Conclusion Go Golang is a simple and efficient programming language with built in support for concurrency Its key features include static typing garbage collection and a strong standard library With real time usage examples such as Docker Kubernetes and Go Ethereum Golang has established itself as a popular choice for building scalable systems The future of Go looks promising with its potential impact on cloud native development DevOps IoT and its growing ecosystem contributing to its continued growth in the programming landscape Go the language that makes you question your self worth as a programmer Embrace the simplicity and enjoy the endless debates about error handling It s like a rollercoaster ride but without the fun |
2023-05-13 10:26:16 |
| 海外TECH |
DEV Community |
⚡️ Speed up development? The handy library of most used snippets for Go apps |
https://dev.to/koddr/speed-up-development-the-handy-library-of-most-used-snippets-for-go-apps-1c1h
|
️Speed up development The handy library of most used snippets for Go apps IntroductionWell hello my DEV friends It s been a long time since I had the time and then the opportunity to write this blog But thank you anyway for staying with me and asking questions I really appreciate it Love you people Today I m going to tell you about my personal little project which I put out to the public quite recently But it helped me all these years to write Go programs as fast as possible and in full compliance with the DRY Don t Repeat Yourself principle Intrigued Then welcome it will be interesting Table of contentsMotivation in library creationBasic use of the libraryRegular snippetsUniversal snippetsBenchmarksA win win cooperation Motivation in library creationAs you already know from my previous articles I take an approach to software development that makes the developer s life totally easy Why repeat the same snippet for example to translate a byte slice to a string if you can add the most efficient solution to the library once and import it where you need it Exactly right It s an unnecessary cognitive load for those who will read your code in the future and for you as well It is for these reasons that The Go Snippet Library or gosl for a short provides snippets collection for working with routine operations in your Go programs with a super user friendly API and the most efficient performance ↑Table of contents Basic use of the libraryYes simply add gosl to your project go get github com koddr goslAdd the needed snippet to your code like this import fmt log github com koddr gosl func main b byte Hello World s err gosl ToString b convert byte slice to string if err nil log Fatal err fmt Println s Or like this to have access to snippets as embedded struct type App struct utils gosl Utility add regular snippets genUtils gosl GenericUtility any comparable add generic snippets func a App handleSomething b byte error s err a utils ToString b convert byte slice to string if err nil return err u err a genUtils Unmarshal json model unmarshal JSON data to struct if err nil return err And you are already saving your time and energy Trust me ️↑Table of contents Regular snippetsThe regular snippets of the gosl package are aimed at solving one single task with the smallest possible allocation of your machine s resources ConcatConcatenate strings s to the one string s this s is s my string s gosl Concat s s s ContainsCaseInsensitiveReport if string substr is within string s case insensitive by default s Hello WORLD substr r b gosl ContainsCaseInsensitive s substr RandomStringGenerates a really random string with a given size size s err gosl RandomString size if err nil log Fatal err ToStringConvert byte slice b to string or error b byte Hello World s err gosl ToString b if err nil log Fatal err ToBytesConvert string s to byte slice or error s Hello World b err gosl ToBytes s if err nil log Fatal err ↑Table of contents Universal snippetsThe universal or generic snippets of the gosl package are aimed at solving one particular task with the smallest possible allocation of your machine s resources but can be applied to a huge number of user types ContainsInSliceReport if value v is within slice s s string one two three v two b gosl ContainsInSlice s v ContainsInMapReport if key k is within map m m map string int one two three k two b gosl ContainsInMap m k MarshalMarshal struct user to JSON data j byte slice or error type user struct ID int json id Name string json name u amp user j err gosl Marshal u if err nil log Fatal err This snippet is a compatible drop in replacement for the standard encoding json library UnmarshalUnmarshal JSON data j byte slice to struct user or error type user struct ID int json id Name string json name j byte id name Viktor m amp user u err gosl Unmarshal j m if err nil log Fatal err This snippet also is a compatible drop in replacement for the standard encoding json library ↑Table of contents BenchmarksMy results for all snippets in the library the test stand is Apple MacBook Air M GB RAM macOS BenchmarkConcat String ns op B op allocs opBenchmarkConcat String ns op B op allocs opBenchmarkConcat String ns op B op allocs opBenchmarkToString HelloWorld ns op B op allocs opBenchmarkToBytes HelloWorld ns op B op allocs opBenchmarkRandomString Size ns op B op allocs opBenchmarkRandomString Size ns op B op allocs opBenchmarkRandomString Size ns op B op allocs opBenchmarkRandomString Size ns op B op allocs opBenchmarkRandomString Size ns op B op allocs opBenchmarkMarshal StructField ns op B op allocs opBenchmarkMarshal StructField ns op B op allocs opBenchmarkUnmarshal StructField ns op B op allocs opBenchmarkUnmarshal StructField ns op B op allocs opBenchmarkContainsCaseInsensitive HelloWorld ns op B op allocs opBenchmarkContainsCaseInsensitive LoremIpsum ns op B op allocs opBenchmarkContainsInSlice ns op B op allocs opBenchmarkContainsInMap ns op B op allocs op↑Table of contents A win win cooperationI invite every user of Dev to and my lowly blog certainly to participate in this project Let s work together to create the largest and most useful library of snippets for Go programs on the web today Ask questions and submit your features to the Issues section Send your snippets or improvements to the current to the Pull requests section Your PRs amp issues are welcome Thanks ↑Table of contents Photos and videos byMarc Sendra Martorell Vic Shóstak P S If you want more articles like this on this blog then post a comment below and subscribe to me Thanks And of course you can support me by donating at LiberaPay Each donation will be used to write new articles and develop non profit open source projects for the community |
2023-05-13 10:13:00 |
| 海外TECH |
DEV Community |
50 Chat GPT Prompts Every Software Developer Should Know (Tested) |
https://dev.to/hackertab_org/50-chat-gpt-prompts-every-software-developer-should-know-tested-9al
|
Chat GPT Prompts Every Software Developer Should Know Tested In this article we ll explore some awesome ChatGPT prompts specifically tailored for software developers These prompts can assist with tasks such as code generation code completion bug detection code review API documentation generation and more Code GenerationGenerate a boilerplate language code for a class module component named name with the following functionality functionality description Create a language function to perform operation on data structure with the following inputs input variables and expected output output description Generate a language class for a domain application that includes methods for methods list and properties properties list Based on the design pattern create a code snippet in language that demonstrates its implementation for a use case Example Generate a boilerplate Python code for a shopping cart module named ShoppingCart with the following functionality A constructor that initializes an empty list to store cart items A method called add item that takes in an item object and adds it to the cart A method called remove item that takes in an item object and removes it from the cart if it exists A method called get items that returns the list of items in the cart A method called get total that calculates and returns the total price of all items in the cart Code CompletionIn language complete the following code snippet that initializes a data structure with values code snippet Finish the language function that calculates desired output given the following input parameters function signature Complete the language code to make an API call to API endpoint with parameters and process the response code snippet Example Finish the Python function that calculates the average of a list of numbers given the following input parameters def calculate average num list Bug DetectionIdentify any potential bugs in the following language code snippet code snippet Analyze the given language code and suggest improvements to prevent error type code snippet Find any memory leaks in the following language code and suggest fixes code snippet Example Identify any potential bugs in the following Python code snippet def calculate sum num list sum for i in range len num list sum num list i return sum Code ReviewReview the following language code for best practices and suggest improvements code snippet Analyze the given language code for adherence to coding style guidelines code snippet Check the following language code for proper error handling and suggest enhancements code snippet Evaluate the modularity and maintainability of the given language code code snippet Example Review the following Python code for best practices and suggest improvements def multiply list lst result for num in lst result num return result API Documentation GenerationGenerate API documentation for the following language code code snippet Create a concise API reference for the given language class code snippet Generate usage examples for the following language API code snippet Example Generate API documentation for the following JavaScript code Returns the sum of two numbers param number a The first number to add param number b The second number to add returns number The sum of a and b function sum a b return a b Query OptimizationOptimize the following SQL query for better performance SQL query Analyze the given SQL query for any potential bottlenecks SQL query Suggest indexing strategies for the following SQL query SQL query Optimize the following NoSQL query for better performance and resource usage NoSQL query Example Optimize the following SQL query for better performance SELECT FROM ordersWHERE order date BETWEEN AND ORDER BY order date DESCLIMIT User Interface DesignGenerate a UI mockup for a web mobile application that focuses on user goal or task Suggest improvements to the existing user interface of app or website to enhance usability accessibility or aesthetics Design a responsive user interface for a web mobile app that adapts to different screen sizes and orientations Example Generate a UI mockup for a mobile application that focuses on managing personal finances Automated TestingGenerate test cases for the following language function based on the input parameters and expected output function signature Create a test script for the given language code that covers unit integration system testing code snippet Generate test data for the following language function that tests various edge cases function signature Design a testing strategy for a web mobile app that includes unit integration system and or performance testing Example Generate test cases for the following Python function based on the input parameters and expected output Code refactoringSuggest refactoring improvements for the following language code to enhance readability and maintainability code snippet Identify opportunities to apply design pattern in the given language code code snippet Optimize the following language code for better performance code snippet Example Optimize the following Python code for better performance def find max numbers max num numbers for num in numbers if num gt max num max num num return max num Design pattern suggestionsBased on the given language code recommend a suitable design pattern to improve its structure code snippet Identify opportunities to apply the design pattern in the following language codebase repository URL or codebase description Suggest an alternative design pattern for the given language code that may provide additional benefits code snippet Example Based on the given Python code recommend a suitable design pattern to improve its structure class TotalPriceCalculator def calculate total self items passclass NormalTotalPriceCalculator TotalPriceCalculator def calculate total self items total for item in items total item price item quantity return totalclass DiscountedTotalPriceCalculator TotalPriceCalculator def calculate total self items total for item in items total item price item quantity apply discount return totalclass Order def init self items total price calculator self items items self total price calculator total price calculator def calculate total self return self total price calculator calculate total self items class Item def init self name price quantity self name name self price price self quantity quantity Algorithm developmentSuggest an optimal algorithm to solve the following problem problem description Improve the efficiency of the given algorithm for specific use case algorithm or pseudocode Design an algorithm that can handle large scale data or high throughput for specific task or operation Propose a parallel or distributed version of the following algorithm to improve performance algorithm or pseudocode Code translationTranslate the following source language code to target language code snippet Convert the given source language class or module to target language while preserving its functionality and structure code snippet Migrate the following source language code that uses library or framework to target language with a similar library or framework code snippet Example Translate the following Python code to JavaScript def factorial n if n return else return n factorial n Personalized learningCurate a list of resources to learn programming language or technology based on my current skill level beginner intermediate advanced Recommend a learning path to become proficient in specific programming domain or technology considering my background in existing skills or experience Suggest project ideas or coding exercises to practice and improve my skills in programming language or technology Code visualizationGenerate a UML diagram for the following language code code snippet Create a flowchart or visual representation of the given language algorithm algorithm or pseudocode Visualize the call graph or dependencies of the following language code code snippet Example Generate a UML diagram for the following Java code public abstract class Vehicle private String model public Vehicle String model this model model public String getModel return model public abstract void start public abstract void stop public class Car extends Vehicle public Car String model super model Override public void start System out println Starting car engine Override public void stop System out println Stopping car engine public class Motorcycle extends Vehicle public Motorcycle String model super model Override public void start System out println Starting motorcycle engine Override public void stop System out println Stopping motorcycle engine Data visualizationGenerate a bar chart that represents the following data data or dataset description Create a line chart that visualizes the trend in the following time series data data or dataset description Design a heatmap that represents the correlation between the following variables variable list Thanks for reading All Developer news in one tab As a developer it can be difficult to stay on top of everything happening in the field Hackertab makes it easy by allowing you to customise your default tab page to include news tools and events from top sources such as GitHub Trending Hacker News DevTo Medium and Product Hunt |
2023-05-13 10:00:42 |
| ニュース |
BBC News - Home |
Ukraine's Zelensky in Rome to meet Pope Francis |
https://www.bbc.co.uk/news/world-europe-65581170?at_medium=RSS&at_campaign=KARANGA
|
francisukraine |
2023-05-13 10:23:57 |
| ニュース |
BBC News - Home |
Cyclone Mocha: Major evacuations as cyclone threatens Bangladesh |
https://www.bbc.co.uk/news/world-asia-65581169?at_medium=RSS&at_campaign=KARANGA
|
mocha |
2023-05-13 10:47:51 |
| ニュース |
Newsweek |
「ISISの花嫁」だった英女性が、SNSのセレブに...テロ組織からの劇的な転身の目的とは |
https://www.newsweekjapan.jp/stories/world/2023/05/isissns.php
|
当時は、シリアに渡ったのはISISに加わるためではなかったし、兵士と結婚するためでもなかったと主張していたが、検察官が提示した証拠から、シャキルが、ISIS兵士と結婚したスコットランド人女性のブログを読んでいたことが明らかになった。 |
2023-05-13 19:13:00 |
| 海外TECH |
reddit |
【セックスしないと追い出される部屋】ライオンのオスはセックスの拒否権がなく一斉に発情するメスたちの要求に応えて1日50回以上のセックスを繰り返すこともあるが、拒否すれば群れから追放されてしまう |
https://www.reddit.com/r/newsokunomoral/comments/13gdio1/セックスしないと追い出される部屋ライオンのオスはセックスの拒否権がなく一斉に発情するメスたちの要求に/
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ewsokunomorallinkcomments |
2023-05-13 10:07:39 |
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