| python |
Pythonタグが付けられた新着投稿 - Qiita |
Flaskのflask db init時に発生するImportErrorの対処 |
https://qiita.com/YUTOKUBO2001/items/8a43c56f24f46d9addf5
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flask |
2023-04-15 22:57:02 |
| Ruby |
Rubyタグが付けられた新着投稿 - Qiita |
ev3rtでno implicit conversion of Hash into String (TypeError)と出た時の備忘録 |
https://qiita.com/freegod/items/384b7b8bd59dee657010
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ofhashintostringtypeerror |
2023-04-15 22:04:20 |
| AWS |
AWSタグが付けられた新着投稿 - Qiita |
[AWS Q&A 365][AppSync]AWSのよくある問題の毎日5選 #30 |
https://qiita.com/shinonome_taku/items/4fc748c96bf1e89d57fe
|
awsappsync |
2023-04-15 22:44:38 |
| AWS |
AWSタグが付けられた新着投稿 - Qiita |
[AWS Q&A 365][AppSync]Daily Five Common Questions #30 |
https://qiita.com/shinonome_taku/items/8bd438e9bc5442c028e3
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appsync |
2023-04-15 22:43:46 |
| Git |
Gitタグが付けられた新着投稿 - Qiita |
プログラミング初心者必見！Gitとは何か？ |
https://qiita.com/hsasaki12/items/f2f5615a55bfcf0be54d
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管理ツール |
2023-04-15 22:13:04 |
| 海外TECH |
MakeUseOf |
How to Install an SSD In a Laptop to Improve Performance |
https://www.makeuseof.com/how-to-install-an-ssd-in-a-laptop-to-improve-performance/
|
improve |
2023-04-15 13:15:16 |
| 海外TECH |
DEV Community |
Revolutionize Your Web Development with DevOps and JavaScript! |
https://dev.to/imsampro/revolutionize-your-web-development-with-devops-and-javascript-1k4b
|
Revolutionize Your Web Development with DevOps and JavaScript In today s fast paced world web development has become a crucial aspect of creating a strong digital presence for businesses With the emergence of DevOps practices and the popularity of JavaScript developers are now focusing on the integration of the two to revolutionize web development DevOps allows for collaboration between development and operations teams while JavaScript provides the functionality and versatility needed for modern web applications In this article we will explore the benefits of using DevOps with JavaScript best practices for their implementation and the tools and technologies available to improve the web development process Introduction to DevOps and JavaScriptIn the world of web development there are few trends that have caught on as quickly as DevOps and JavaScript DevOps is a methodology that combines software development and operations to create a more efficient and streamlined process while JavaScript is a language that has become ubiquitous in web development due to its versatility and usefulness Together these two trends can revolutionize your web development process making it faster more reliable and more collaborative What is DevOps DevOps is a methodology that aims to streamline the software development and operations process by breaking down the traditional silos between the two teams This is achieved through increased collaboration automated workflows and a focus on faster more reliable deployments The goal of DevOps is to create a more seamless process that allows developers to focus on building great software while operations teams take care of the infrastructure and support Why use JavaScript in DevOps JavaScript has become one of the most widely used languages in web development due to its versatility ease of use and abundance of frameworks and libraries Using JavaScript in your DevOps process can allow you to automate tasks create custom scripts and integrate with a wide range of tools and technologies Additionally many modern web applications are built entirely in JavaScript making it a natural fit for DevOps in web development Benefits of implementing DevOps in web developmentImplementing DevOps in your web development process can have a number of benefits both for your development team and your end users Some of the key benefits include Improved collaboration between development and operations teamsBy breaking down traditional silos and creating a more collaborative environment DevOps can lead to better communication and understanding between development and operations teams This can result in faster feedback loops fewer misunderstandings and a more streamlined process from start to finish Faster time to market for applicationsDevOps can speed up the development process by automating many of the manual tasks that can slow down software delivery This can result in faster time to market for your applications allowing you to stay ahead of the competition and meet client needs more quickly Better quality control and testingThrough automation and standardization DevOps can create a more consistent testing and quality control process This can reduce the risk of bugs and other issues leading to a better overall user experience and a higher level of client satisfaction Overview of the DevOps process in web developmentThe DevOps process in web development typically involves three main phases development testing and deployment Each of these phases has a specific set of tasks and goals which are discussed below Development phaseDuring the development phase developers work on creating and testing new features or updates to an application This phase involves coding code reviews and testing within a development environment Testing phaseIn the testing phase the application is tested in a staging environment to ensure that it is working properly and meets the necessary requirements This phase can involve a variety of testing methods including automated and manual testing Deployment phaseOnce the application has been thoroughly tested it is deployed to the production environment This phase involves monitoring and support to ensure that the application continues to operate smoothly and meet user needs Best practices for using DevOps with JavaScript applicationsIf you re looking to implement DevOps in your web development process there are a few best practices to keep in mind when working with JavaScript applications Standardize your JavaScript codeStandardizing your JavaScript code can make it easier to maintain debug and test your applications Using tools like JSLint or ESLint can help ensure that your code follows best practices and is consistent throughout your application Automate as much as possibleAutomation is a key component of DevOps and can help speed up your development process while reducing the risk of errors Look for opportunities to automate tasks like testing deployment and server configuration to make your process as efficient as possible Use the right tools for the jobThere are a wide variety of tools and technologies available for DevOps in web development so be sure to choose ones that are well suited for your specific needs For JavaScript applications tools like Grunt Gulp and Webpack can be especially useful for automating tasks and managing dependencies Continuous Integration and Deployment with DevOps and JavaScriptContinuous Integration and Deployment CI CD is a crucial component of DevOps that enables teams to deliver high quality software products quickly and efficiently CI CD involves a series of automated steps that includes testing building and deploying code changes to production in a consistent and repeatable manner Overview of CI CD pipelinesA CI CD pipeline is a series of steps that enable automated building testing and deployment of code changes to production The pipeline can be divided into several stages including code commit build test deploy and release Each stage in the pipeline is automated which means that code changes are automatically passed through the pipeline without any manual intervention Setting up a CI CD pipeline for JavaScript applicationsSetting up a CI CD pipeline for JavaScript applications involves defining the steps required to build and deploy code changes The pipeline can be configured using tools like Jenkins Travis CI or GitLab CI The pipeline should include steps such as building the application running unit tests generating code coverage reports and deploying the application to a staging or production environment Monitoring and troubleshooting in DevOps for JavaScript applicationsMonitoring and troubleshooting are essential components of DevOps for JavaScript applications as they enable teams to quickly identify and resolve issues that arise in production Monitoring application performanceMonitoring application performance involves tracking key metrics such as response time CPU usage memory usage and network latency Teams can use tools like New Relic Datadog or AppDynamics to monitor application performance and detect anomalies Troubleshooting common issues in JavaScript applicationsTroubleshooting common issues in JavaScript applications involves identifying and resolving issues that arise in production Common issues include memory leaks performance bottlenecks and errors in code Teams can use tools like Chrome DevTools Node js Inspector or Visual Studio Code debugger to identify and resolve issues Tools and technologies for implementing DevOps in web developmentImplementing DevOps in web development involves using a range of tools and technologies to automate the software development life cycle Version control systems VCS Version control systems are essential for managing code changes in web development Git is the most popular VCS and is used by teams worldwide to manage code changes Continuous Integration and Deployment CI CD toolsCI CD tools like Jenkins Travis CI and GitLab CI enable teams to automate the software development life cycle and deliver high quality software products quickly and efficiently Containerization and virtualization technologiesContainerization and virtualization technologies like Docker and Kubernetes enable teams to deploy applications in a consistent and repeatable manner These technologies enable teams to package applications and dependencies into containers and deploy them in any environment Future of web development with DevOps and JavaScriptThe future of web development with DevOps and JavaScript looks bright with emerging trends and technologies that are set to revolutionize the industry Emerging trends and technologiesEmerging trends and technologies in web development include serverless computing microservices and machine learning These technologies enable teams to build scalable resilient and intelligent applications that are optimized for performance and efficiency Challenges and opportunitiesThe challenges and opportunities in web development with DevOps and JavaScript are vast Teams need to embrace new technologies and tools to stay ahead of the competition and deliver high quality software products quickly and efficiently Opportunities abound for those who are willing to innovate and take risks in this dynamic and rapidly evolving industry In conclusion implementing DevOps with JavaScript in web development can ensure faster development cycles better quality control and improved collaboration between teams By following best practices and utilizing the right tools and technologies developers can create scalable efficient and reliable web applications that meet the demands of modern businesses As we continue to see advancements in technology and emerging trends the future of web development with DevOps and JavaScript looks promising FAQWhat is DevOps DevOps is a set of practices that combines software development Dev and information technology operations Ops to shorten the systems development life cycle while delivering features fixes and updates frequently in close alignment with business objectives How does JavaScript fit into DevOps JavaScript is a popular language used for web development and it can help improve the functionality and versatility of applications By integrating JavaScript with DevOps practices developers can create reliable and scalable web applications that meet the demands of modern businesses What are the best practices for implementing DevOps in web development Some best practices for implementing DevOps in web development include standardizing JavaScript code automating workflows as much as possible using the right tools for the job and focusing on collaboration between teams What tools and technologies are available for implementing DevOps in web development There are many tools and technologies available for implementing DevOps in web development including version control systems VCS Continuous Integration and Deployment CI CD tools and containerization and virtualization technologies The choice of tools and technologies will depend on the needs and goals of the development team Thank you for reading Soumyadeep Mandal imsampro |
2023-04-15 13:19:24 |
| 海外TECH |
DEV Community |
How I work with Observables in Angular |
https://dev.to/dimitarstbc/how-i-work-with-observables-in-angular-49hl
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How I work with Observables in Angular IntroductionThis is a subject that is intimidating for a lot of folks out there and I have heard people explain it s just too hard In the beginning when I first started learning Angular I was having the same feelings Like…What the hell Why do I even need this Observable thing I managed to love it now and I prefer to always go reactive and always consider using RxJS as my goto approach first But with great powers you know the rest There are many ways to deal with a single problem and this approach is my preferable one In the next lines I am going to talk about how I like to work with Observables and how I prefer to handle data This is part of my Angular series and it would be great if you subscribe follow It shows me that these articles are actually helpful to someone What to expect Observables and declaring themSubscribing to them with Async pipeWorking on data with PipesCombining pipes in the HTML templateWorking demo showing all of the above What are Observables An observable Simply put a producer of data a pipe that is delivering information on a consumer It produces the value and delivers it when asked to There are certain types of Observables We have cold ones and hot ones Streaming data when asked and streaming data regardless of potential subscribers respectfully The observable itself plays a very central part of the reactive programming that is used in the framework It is used often to manage asynchronous data HTTP requests for example inputs and custom logic The “Observable interface that the class implements defines a set of methods and properties that allow us to interact with the observable subscribe to the emissions and handle any errors It includes a completion event as well When we subscribe to an observable it creates a new subscription object This object is used to control and manage the interaction between the observable and the subscriber It is important to point out that unsubscribing is an important part of the working flow of working with Observables Especially if we are talking about hot observables that are sending data regarding the user interaction The “async pipe is doing this for now and it is my preferred way to deal with Observables Another thing that RxJS is providing us with is the ability to manipulate the data before passing it to the consumer We have various operators to choose from that have different behaviors Using Async pipeWhen it comes to my personal preferences I usually prefer to define the Observable in my class and use the async pipe in the template This is great since it automatically does subscribing and unsubscribing to it Getting the data is easy and handling it is easy as well Let s get to the examples We have a list of users and we want to iterate over it Our task is to list the information to our user You can check the entire source code in the repo but I am going to provide snippets here I usually create the services the interfaces and then declare the observable with the correct type in the ts file Subscribing is done with the async pipe In this example I am getting the entire list of users Angular is using the pipe and subscribes to this observable under the hood The data is loaded and when delivered rendered We are going to implement routing and loading single data usage RxJS is going to help us here Loading single userThe moment a user is clicked in the list we are using routerLink to change the route and load the data of the specific user We will load status and description Nothing more for our little demo but I am going to highlight my approach on controlling the data there I am using from operator here to convert my USERS array to an observable stream and find to return either the found user or an error using the throwErrorMany ways to handle the id of the route but I am going to use something simple for this I want to showcase the template and the combination with the ngIf directive I am still using the onPush change detection and the user is an observable of User type The control of the data is reactive Let s say I want to list the active users We have a property that sets their “status I would go with the following since I already have the users I could just pipe them again and filter it there Fast and clean In the provided repo below you can check a functionality that adds users update the UI automatically on update using BehaviorSubject and Observable The template is rendered with an async pipe as well How to use Observables and Pipes together in Angular I love pipes I try to use them as much as possible I know not every time is the best time to use them and sometimes it s just not the case But let s say you have a response and get that users But you need to arrange the data in specific order What do you do I could do the job perfectly with a custom Pipe here I get Users and return Users Let s see an example I am reworking the template in order to handle null users Chaining pipes is just too great One thing I usually do as well is combine all these Observables into one I am using combineLatest in this example to use it as a single variable in the template The template Demo projectThe entire source code is in a repo on my GitHub profile Every example here is there and you can check the interactions and the way it is structured Here is the linkGitHub repositoryI am planning to expand this into a bigger demonstration project with design functionality and some patterns and practices so if you are interested in that follow and “star the project Thank you in advance ConclusionI really love working with Observables Subjects BehaviourSubjects and pipes When I start a feature I always try to plan in advance and I try to plan as reactively and declaratively as possible In the project I listed above I am planning to create a full application with best practices and every article I write for Angular is going to be referred to and implemented in the project whenever is possible of course Thank you and good luck |
2023-04-15 13:15:31 |
| 海外ニュース |
Japan Times latest articles |
Police probe explosives attack as Kishida returns to election rallies |
https://www.japantimes.co.jp/news/2023/04/15/national/politics-diplomacy/fumio-kishida-explosion-speech/
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Police probe explosives attack as Kishida returns to election ralliesA suspect is in custody after a cylindrical object landed meter from the prime minister who was evacuated before the device exploded |
2023-04-15 22:28:49 |
| ニュース |
BBC News - Home |
Billie Jean King Cup 2023 results: Britain's Harriet Dart loses to Caroline Garcia |
https://www.bbc.co.uk/sport/tennis/65282128?at_medium=RSS&at_campaign=KARANGA
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Billie Jean King Cup results Britain x s Harriet Dart loses to Caroline GarciaGreat Britain miss out on the Billie Jean King Cup Finals after Harriet Dart s loss to France s world number five Caroline Garcia |
2023-04-15 13:15:03 |
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