We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
The document discusses various JavaScript concepts including ECMAScript, the difference between ES5 and ES6, web crawlers, DOM manipulation, OOPs in JavaScript, data structures like Set and Map, symbols, JavaScript engines, and recursion. ECMAScript is the standardized language specification while JavaScript is the programming language. Key differences between ES5 and ES6 include new features added in ES6 like modules and default parameters. Web crawlers systematically browse pages on the web to index content. JavaScript allows OOPs concepts like abstraction, encapsulation, inheritance and more through its prototype-based approach. Common JavaScript engines include V8, SpiderMonkey and Chakra.
This document provides an overview of CSS and JavaScript concepts. It discusses CSS transitions, transforms, grid properties, and using media queries with CSS grid. For JavaScript, it covers data types, operators, strings, arrays, objects, functions, and loops. It also provides examples of transform properties, grid column/row definitions, spanning, min-max properties, and template areas in CSS grid.
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
This document discusses internationalizing (i18n) Scala programs using the gettext approach. It describes marking strings for translation, extracting them to template files, loading translation files, and translating at runtime. Tools are introduced for extracting strings from Scala code and templates, editing translation files, and parsing loaded files. The approach works for various Scala template engines and frameworks like Play.
This document discusses Communicating Sequential Processes (CSP) and building modular applications with components. It defines concurrency vs parallelism, explaining that concurrency is the model and parallelism is the act. Channels are presented as a powerful primitive for communication between concurrent tasks, allowing values to be put on or taken from the channel. Examples are given of CSP in Clojure and JavaScript. Components are described as a way to build modular applications with common client-server code sharing via a Unix style of small, concentrated modules. Globals are discouraged in favor of the module pattern.
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
The document discusses various JavaScript concepts including ECMAScript, the difference between ES5 and ES6, web crawlers, DOM manipulation, OOPs in JavaScript, data structures like Set and Map, symbols, JavaScript engines, and recursion. ECMAScript is the standardized language specification while JavaScript is the programming language. Key differences between ES5 and ES6 include new features added in ES6 like modules and default parameters. Web crawlers systematically browse pages on the web to index content. JavaScript allows OOPs concepts like abstraction, encapsulation, inheritance and more through its prototype-based approach. Common JavaScript engines include V8, SpiderMonkey and Chakra.
This document provides an overview of CSS and JavaScript concepts. It discusses CSS transitions, transforms, grid properties, and using media queries with CSS grid. For JavaScript, it covers data types, operators, strings, arrays, objects, functions, and loops. It also provides examples of transform properties, grid column/row definitions, spanning, min-max properties, and template areas in CSS grid.
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
This document discusses internationalizing (i18n) Scala programs using the gettext approach. It describes marking strings for translation, extracting them to template files, loading translation files, and translating at runtime. Tools are introduced for extracting strings from Scala code and templates, editing translation files, and parsing loaded files. The approach works for various Scala template engines and frameworks like Play.
This document discusses Communicating Sequential Processes (CSP) and building modular applications with components. It defines concurrency vs parallelism, explaining that concurrency is the model and parallelism is the act. Channels are presented as a powerful primitive for communication between concurrent tasks, allowing values to be put on or taken from the channel. Examples are given of CSP in Clojure and JavaScript. Components are described as a way to build modular applications with common client-server code sharing via a Unix style of small, concentrated modules. Globals are discouraged in favor of the module pattern.
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
This document discusses code quality tools for Ruby code and how RubyMine can help. It introduces static and runtime tools for finding code smells, metrics for measuring qualities like duplication, and testing and coverage tools. RubyMine integrates many of these tools and performs on-the-fly code inspections to help improve code quality. The document encourages attendees to try RubyMine's code quality features themselves.
Actors and Microservices - Can two walk together? - Rotem Hermon, GigyaCodemotion Tel Aviv
This document discusses actors and microservices. It introduces the actor model as an approach to concurrent programming that avoids problems with shared state and locking through message passing between lightweight actors. An actor processes messages asynchronously by message type rather than by shared threads or memory. This simplifies concurrency. The document also discusses virtual actors which provide a higher abstraction level through a runtime that handles actor placement and scaling. It provides an example of a URL shortening service implemented using virtual actors compared to a traditional multithreaded approach. Finally, it discusses how the actor model can be applied to build actor-based microservices.
NoSQL databases should not be chosen just because a system is slow or to replace RDBMS. The appropriate choice depends on factors like the nature of the data, how the data scales, and whether ACID properties are needed. NoSQL databases are categorized by data model (document, column family, graph, key-value store) which affects querying. Other considerations include scalability based on the CAP theorem and operational factors like the distribution model and whether there is a single point of failure. The best choice depends on the specific requirements and risks losing data if chosen incorrectly.
jRuby fixes some issues with the Ruby programming language like memory leaks and lack of kernel level threading by running Ruby code on the Java Virtual Machine which has features like a sophisticated garbage collector, just-in-time compilation for improved performance, and native threading; benchmarks show jRuby provides much higher concurrency and better performance than Ruby for background processing and web applications; deploying a Ruby application using jRuby and a Java application server like Torquebox allows it to take advantage of the reliability, scalability and deployment features of the Java platform.
Develop realtime web with Scala and XitrumNgoc Dao
This document discusses a talk given by Ngoc Dao on developing realtime and distributed web applications with Scala and Xitrum. The talk covers:
1) An overview of Scala, including its functional features, object-oriented features, tools like SBT and REPL, and how to get started.
2) Using Scala for web development with the Xitrum framework, including routing, responding to requests, internationalization, and metrics.
3) Using Scala for concurrency with futures, actors, and Akka FSM.
4) Building realtime web applications with websockets, Socket.IO and SockJS.
5) Distributed systems with Akka remoting
- The document discusses various Java template engines that can be used on the JVM including Thymeleaf, Mustache, Jade, and Scalate.
- A benchmark project was created to test the performance of these template engines in a Spring MVC application that renders a list of presentations.
- The results showed that Thymeleaf used more memory and was slower than commonly used engines like Freemarker and Velocity. Mustache performed very well. Scalate was over 100 seconds slower due to its layout mechanism.
This document discusses code smells and tools for analyzing Ruby code quality. It notes that most code changes involve modifying existing code. It then describes several static code analysis tools like Reek, Flog, and Roodi that inspect code without running it, as well as runtime tools like RSpec and SimpleCov that execute code. Finally, it emphasizes the importance of both static analysis and testing, and recommends trying the RubyMine IDE for refactoring code.
This document summarizes RubyMotion, a tool that allows developers to create iOS and OS X applications using Ruby instead of Objective-C. It discusses RubyMine, an IDE for RubyMotion development, and various Ruby libraries like BubbleWrap, Teacup, and Joybox that provide wrappers and helpers for common tasks like making HTTP requests, building user interfaces, and using the Cocos2D and Box2D frameworks in a RubyMotion app. It also briefly mentions some popular apps and books related to RubyMotion development.
Proxying DBI with DBD::Gofer and App::Staticperlnohuhu
This document summarizes using DBD::Gofer and App::Staticperl to connect to remote Informix databases behind firewalls. DBD::Gofer acts as a stateless DBI proxy, allowing connections via SSH. App::Staticperl builds a standalone Perl executable containing all necessary modules, avoiding configuration changes. The document outlines the process of building App::Staticperl, installing necessary modules like DBI and DBD::Informix, customizing for the Informix environment, and creating a static Perl executable that can connect to remote Informix databases behind firewalls in a minimal and maintainable way.
Paul Graham, the founder of startup incubator YCombinator, put it best when he described LISP as his old company's secret weapon. Think about, if you use all of the same tools as everyone else, how do you expect to achieve better results?
Clojure is a LISP language created in 2009 by Rich Hickey. Built initially on the Java Virtual Machine (JVM) it has since been ported to run on Microsoft and JavaScript. (That's right the browser). Clojure gives you all of the power and stability of the JVM without the clunkiness of Java.
Most developers have never worked with a functional language before and many who have found the use of parenthesis instead of braces intimidating. Don't worry. Once it is broken down to you, I think you will see the beauty of it.
In this fast and fun session, we will build an app using Clojure. We will enhance it, test it and explore why functional is a better programming model than OOPs. We will even explore why such programs are better at multitasking than object oriented ones.
This document discusses implementing closures in Java using inner classes and lambda expressions. It explains that inner classes can capture local variables and implement closures. Lambda expressions allow treating functions as values and auto-converting between functional interfaces. The document also covers proposed syntax for lambda expressions and how default methods allow adding methods to interfaces without breaking backward compatibility.
Scala.io is a library for Scala that provides features for input/output (I/O) operations including:
1) Asynchronous read and write functionality as well as processing of futures and long traversables.
2) Basic read/write capabilities including reading CSV files, loading data into memory, printing lines, and writing data.
3) Additional I/O features such as input composition, working with lines of text, processing files, and handling errors.
Java 8 introduced parallel streams to allow collections to be processed in parallel using multiple threads. While parallel streams can improve performance by splitting work across CPU cores, they also introduce challenges. Parallel streams use the ForkJoinPool by default, so long-running or blocking tasks could impact other parallel operations. Side effects must also be avoided. Parallel streams may not provide benefits with a single CPU or for I/O-bound work. Developers must consider hardware resources and task dependencies to determine if parallel streams are applicable.
This document discusses Java 8 parallel streams. It begins with an introduction to lambda expressions and streams in Java 8. It then covers parallel streams and how they can automatically parallelize processing. The document demonstrates parallel stream code examples. It also discusses the ForkJoinPool for parallel execution in Java 7. Finally, it notes some potential issues with parallel streams, such as performance degradation on single-core machines or with tasks involving I/O. It recommends only using parallel streams on multi-core machines without significant I/O.
This is an interactive PowerPoint presentation I made for my seminar at my workplace. It talks and illustrates how the JavaScript engine works when executing code. It also contains a step-by-step animation which demonstrates the usage of the JavaScript event loop.
Feel free to use and refer content. Copyrights reserved.
Plataforma distribuída de Microserviços ou, como a Olist funcionaOsvaldo Santana Neto
The document describes Olist's migration from a monolithic to a microservices architecture. Some key points:
- The original version (V1) was built with AngularJS in a monolithic structure, which lacked scalability, reliability, and safety.
- The new architecture uses microservices with inter-service communication via APIs and asynchronous messaging. Services are independent and communicate through RESTful APIs or by publishing messages to queues.
- The architecture provides modularity, scalability, resilience, and safety compared to the monolithic version. Example workflows are described to show how different services interact to complete tasks.
- Development is remote using tools like GitHub, JIRA, Slack for collaboration and Her
DEVNET-1128 Cisco Intercloud Fabric NB Api's for Business & ProvidersCisco DevNet
Get to know the latest Rest API's and their Capabilities for Intercloud Fabric Business & Provider Editions. Understand how these API's can be used to integrate ICF into your Business Applications and provide the advantages of a true Hybrid Cloud to your end-users.
This document discusses code quality tools for Ruby code and how RubyMine can help. It introduces static and runtime tools for finding code smells, metrics for measuring qualities like duplication, and testing and coverage tools. RubyMine integrates many of these tools and performs on-the-fly code inspections to help improve code quality. The document encourages attendees to try RubyMine's code quality features themselves.
Actors and Microservices - Can two walk together? - Rotem Hermon, GigyaCodemotion Tel Aviv
This document discusses actors and microservices. It introduces the actor model as an approach to concurrent programming that avoids problems with shared state and locking through message passing between lightweight actors. An actor processes messages asynchronously by message type rather than by shared threads or memory. This simplifies concurrency. The document also discusses virtual actors which provide a higher abstraction level through a runtime that handles actor placement and scaling. It provides an example of a URL shortening service implemented using virtual actors compared to a traditional multithreaded approach. Finally, it discusses how the actor model can be applied to build actor-based microservices.
NoSQL databases should not be chosen just because a system is slow or to replace RDBMS. The appropriate choice depends on factors like the nature of the data, how the data scales, and whether ACID properties are needed. NoSQL databases are categorized by data model (document, column family, graph, key-value store) which affects querying. Other considerations include scalability based on the CAP theorem and operational factors like the distribution model and whether there is a single point of failure. The best choice depends on the specific requirements and risks losing data if chosen incorrectly.
jRuby fixes some issues with the Ruby programming language like memory leaks and lack of kernel level threading by running Ruby code on the Java Virtual Machine which has features like a sophisticated garbage collector, just-in-time compilation for improved performance, and native threading; benchmarks show jRuby provides much higher concurrency and better performance than Ruby for background processing and web applications; deploying a Ruby application using jRuby and a Java application server like Torquebox allows it to take advantage of the reliability, scalability and deployment features of the Java platform.
Develop realtime web with Scala and XitrumNgoc Dao
This document discusses a talk given by Ngoc Dao on developing realtime and distributed web applications with Scala and Xitrum. The talk covers:
1) An overview of Scala, including its functional features, object-oriented features, tools like SBT and REPL, and how to get started.
2) Using Scala for web development with the Xitrum framework, including routing, responding to requests, internationalization, and metrics.
3) Using Scala for concurrency with futures, actors, and Akka FSM.
4) Building realtime web applications with websockets, Socket.IO and SockJS.
5) Distributed systems with Akka remoting
- The document discusses various Java template engines that can be used on the JVM including Thymeleaf, Mustache, Jade, and Scalate.
- A benchmark project was created to test the performance of these template engines in a Spring MVC application that renders a list of presentations.
- The results showed that Thymeleaf used more memory and was slower than commonly used engines like Freemarker and Velocity. Mustache performed very well. Scalate was over 100 seconds slower due to its layout mechanism.
This document discusses code smells and tools for analyzing Ruby code quality. It notes that most code changes involve modifying existing code. It then describes several static code analysis tools like Reek, Flog, and Roodi that inspect code without running it, as well as runtime tools like RSpec and SimpleCov that execute code. Finally, it emphasizes the importance of both static analysis and testing, and recommends trying the RubyMine IDE for refactoring code.
This document summarizes RubyMotion, a tool that allows developers to create iOS and OS X applications using Ruby instead of Objective-C. It discusses RubyMine, an IDE for RubyMotion development, and various Ruby libraries like BubbleWrap, Teacup, and Joybox that provide wrappers and helpers for common tasks like making HTTP requests, building user interfaces, and using the Cocos2D and Box2D frameworks in a RubyMotion app. It also briefly mentions some popular apps and books related to RubyMotion development.
Proxying DBI with DBD::Gofer and App::Staticperlnohuhu
This document summarizes using DBD::Gofer and App::Staticperl to connect to remote Informix databases behind firewalls. DBD::Gofer acts as a stateless DBI proxy, allowing connections via SSH. App::Staticperl builds a standalone Perl executable containing all necessary modules, avoiding configuration changes. The document outlines the process of building App::Staticperl, installing necessary modules like DBI and DBD::Informix, customizing for the Informix environment, and creating a static Perl executable that can connect to remote Informix databases behind firewalls in a minimal and maintainable way.
Paul Graham, the founder of startup incubator YCombinator, put it best when he described LISP as his old company's secret weapon. Think about, if you use all of the same tools as everyone else, how do you expect to achieve better results?
Clojure is a LISP language created in 2009 by Rich Hickey. Built initially on the Java Virtual Machine (JVM) it has since been ported to run on Microsoft and JavaScript. (That's right the browser). Clojure gives you all of the power and stability of the JVM without the clunkiness of Java.
Most developers have never worked with a functional language before and many who have found the use of parenthesis instead of braces intimidating. Don't worry. Once it is broken down to you, I think you will see the beauty of it.
In this fast and fun session, we will build an app using Clojure. We will enhance it, test it and explore why functional is a better programming model than OOPs. We will even explore why such programs are better at multitasking than object oriented ones.
This document discusses implementing closures in Java using inner classes and lambda expressions. It explains that inner classes can capture local variables and implement closures. Lambda expressions allow treating functions as values and auto-converting between functional interfaces. The document also covers proposed syntax for lambda expressions and how default methods allow adding methods to interfaces without breaking backward compatibility.
Scala.io is a library for Scala that provides features for input/output (I/O) operations including:
1) Asynchronous read and write functionality as well as processing of futures and long traversables.
2) Basic read/write capabilities including reading CSV files, loading data into memory, printing lines, and writing data.
3) Additional I/O features such as input composition, working with lines of text, processing files, and handling errors.
Java 8 introduced parallel streams to allow collections to be processed in parallel using multiple threads. While parallel streams can improve performance by splitting work across CPU cores, they also introduce challenges. Parallel streams use the ForkJoinPool by default, so long-running or blocking tasks could impact other parallel operations. Side effects must also be avoided. Parallel streams may not provide benefits with a single CPU or for I/O-bound work. Developers must consider hardware resources and task dependencies to determine if parallel streams are applicable.
This document discusses Java 8 parallel streams. It begins with an introduction to lambda expressions and streams in Java 8. It then covers parallel streams and how they can automatically parallelize processing. The document demonstrates parallel stream code examples. It also discusses the ForkJoinPool for parallel execution in Java 7. Finally, it notes some potential issues with parallel streams, such as performance degradation on single-core machines or with tasks involving I/O. It recommends only using parallel streams on multi-core machines without significant I/O.
This is an interactive PowerPoint presentation I made for my seminar at my workplace. It talks and illustrates how the JavaScript engine works when executing code. It also contains a step-by-step animation which demonstrates the usage of the JavaScript event loop.
Feel free to use and refer content. Copyrights reserved.
Plataforma distribuída de Microserviços ou, como a Olist funcionaOsvaldo Santana Neto
The document describes Olist's migration from a monolithic to a microservices architecture. Some key points:
- The original version (V1) was built with AngularJS in a monolithic structure, which lacked scalability, reliability, and safety.
- The new architecture uses microservices with inter-service communication via APIs and asynchronous messaging. Services are independent and communicate through RESTful APIs or by publishing messages to queues.
- The architecture provides modularity, scalability, resilience, and safety compared to the monolithic version. Example workflows are described to show how different services interact to complete tasks.
- Development is remote using tools like GitHub, JIRA, Slack for collaboration and Her
DEVNET-1128 Cisco Intercloud Fabric NB Api's for Business & ProvidersCisco DevNet
Get to know the latest Rest API's and their Capabilities for Intercloud Fabric Business & Provider Editions. Understand how these API's can be used to integrate ICF into your Business Applications and provide the advantages of a true Hybrid Cloud to your end-users.
This document provides an overview and agenda for a presentation on microservice architecture. It begins with defining microservices as small, independent applications that communicate via APIs. It then gives an example of how the Dropwizard framework can be used to build production-ready microservices. The remainder of the document outlines five requirements for an internal loan underwriting system and how each could be implemented as an independent microservice. It discusses tooling, deployment strategies, testing approaches, and concludes with a discussion of the Unix philosophy and how it relates to microservices.
Node.js meetup at Palo Alto Networks Tel AvivRon Perlmuter
This document discusses Node.js and related technologies. It begins by advertising job opportunities for Node.js developers at Palo Alto Networks in Tel Aviv. It then lists contact information for several people, including Yaron Biton and Amir Jerbi. The document goes on to cover topics like concurrency in Node.js, microservices, and Docker.
This document provides a high-level overview of JavaScript and Node.js. It discusses how JavaScript originated as a browser scripting language but is now widely used for server-side applications through Node.js. Node.js uses Google's V8 JavaScript engine and allows JavaScript code to run outside of browsers. Popular Node.js frameworks like Express.js are introduced. Key features of JavaScript like asynchronous programming and Node.js concepts like modules, middleware, and MongoDB are summarized at a high level.
The Fn project is a container-native Apache 2.0 licensed serverless platform that you can run anywhere – on any cloud or on-premise. It’s easy to use, supports every programming language, and is extensible and performant. This YourStory-Oracle Developer Meetup covers various design aspects of Serverless for polyglot programming, implementation of Saga pattern, etc. It also emphasizes on the monitoring aspect of Fn project using Prometheus and Grafana
Reactive programming with Rx-Java allows building responsive systems that can handle varying workloads and failures. It promotes asynchronous and non-blocking code using observable sequences and operators. Rx-Java was created at Netflix to address issues like network chattiness and callback hell in their API. It transforms callback-based code into declarative pipelines. Key concepts are Observables that emit notifications, Operators that transform Observables, and Subscribers that receive emitted items. Rx-Java gained popularity due to its support for concurrency, error handling, and composability.
Web Clients for Ruby and What they should be in the futureToru Kawamura
Toru Kawamura discusses the need for web clients in Ruby to be adaptable to change by being decoupled and easy to reuse through versatility. He outlines some of the issues with existing tightly coupled clients and gems dedicated to specific APIs. Kawamura proposes a "Web Client" concept modeled after Rack middleware and Faraday middleware, which can be combined and reused across clients and APIs. He demonstrates implementations of this concept through the faraday-hypermedia and faraday-link-extractor gems. The presentation argues that a decoupled, modular approach to web clients following standards can help address current issues around rigid coupling and lack of reusability.
Basic Understanding and Implement of Node.jsGary Yeh
Node.js is an event-driven JavaScript runtime built on Chrome's V8 engine. It uses non-blocking I/O and an event loop to handle multiple connections simultaneously without blocking. The document discusses Node.js' event loop model and asynchronous I/O, how callbacks allow non-blocking operations, and how modules and frameworks like Express allow building scalable network applications.
This document provides an overview of advanced web technologies including callback functions, asynchronous JavaScript, promises, and async/await in JavaScript. It discusses full stack development using technologies like Node.js, Express, MongoDB, and AngularJS (MEAN stack). Key points include:
1) Callback functions allow a function to call another function, and a callback function can run after another function has finished. Asynchronous functions are often used with callbacks.
2) Promises provide an alternative to callbacks for handling asynchronous code in a cleaner way. A promise is an object that links producing and consuming code.
3) Async and await make promises easier to write by allowing asynchronous functions to be written like synchronous code.
4
Distributed app development with nodejs and zeromqRuben Tan
This document discusses using Node.js and ZeroMQ for distributed application development. It defines distributed applications as apps distributed across multiple cloud locations that communicate via a standardized protocol. ZeroMQ is introduced as a socket library that can be used for inter-app communication, with common patterns being push-pull for sending data and req-rep for request-response. Scaling is discussed as adding more app instances for push-pull and adding more rep apps for req-rep. Sample ZeroMQ code in Node.js is also provided.
Oracle Cloud Native Application Development (Meetup, 20th January 2020)Lucas Jellema
Overview of OCI (Oracle Cloud Infrastructure) services for Cloud Native Application Development.
• Project Fn and Serverless Functions on Oracle Cloud Infrastructure
• API Gateway
• Streams (managed event platform, similar to Apache Kafka)
• Monitoring
• Object Storage
This slide deck gives a good insight in the capabilities available on OCI, their features and limitations and their pricing models.
No Compromise - Better, Stronger, Faster Java in the CloudAll Things Open
Presented at All Things Open 2022
Presented by Jarek Gawor & Harry L. Hoots, III
Title: No Compromise - Better, Stronger, Faster Java in the Cloud
Abstract: Innovation in the cloud-era is about driving efficiencies, agility, and greater opportunities to deploy workloads to the cloud of your choice. Join us as we explore critical challenges faced by organizations in their move to cloud-native architectures along with the innovation in Java standards, including MicroProfile and Jakarta EE, and emerging technologies that help them build and deploy their applications on any cloud, faster and with better performance. Throughout, we showcase Open Liberty, the open-source, cloud-optimized runtime, that is delivering on the promise of this innovation to enable rapid delivery of highly scalable and performant applications, without compromise.
Микросервисы со Spring Boot & Spring CloudVitebsk DSC
Spring Framework - один из наиболее часто используемых фреймворков для разработки корпоративных приложений. Множество высокопроизводительных решений уже построено на его основе. Если вы начинаете новый проект на Java, то, вероятнее всего, он также будет использовать Spring Framework.Использование микросервисного подхода позволяет реагировать на изменения требований быстрее за счет упрощения отдельных компонентов и возможности их параллельной разработки. Однако, использование этого подхода также сопряжено и с дополнительными проблемами - развертывание и отладка существенно усложнились, а для совместной работы сервисов необходимы дополнительные инфраструктурные компоненты, такие как, централизованная конфигурации, возможность повторной отправки сообщений или балансировка нагрузки между несколькими запущенными инстансами.Spring Boot изменил подход к разработке приложений, основанных на Spring Framework. Автоконфигурации, предоставляемые стартерами, позволяют сразу приступить к реализации основной функциональности и не тратить время на настройку инфраструктурных компонентов. Spring Cloud развил эту идею и предоставляет готовые стартеры для реализации микросервисных паттернов.
Презентация подготовлена по материалам выступления Александра Бармина на витебской конференции “Developer's Software Conference” (30.11.2019).
Node.js is a JavaScript runtime built on Chrome's V8 engine. It is asynchronous and event-driven, which allows it to handle many connections with few threads. The document discusses Node.js architecture, including the event loop and worker pool. It emphasizes that blocking the event loop or worker pool can degrade performance. Tasks should be partitioned and offloaded to avoid blocking and minimize variation in task times.
This document discusses evented programming in Node.js and Ruby. It explains that evented programming uses callbacks and asynchronous non-blocking I/O. Node.js uses this approach to improve concurrency over blocking I/O models. Ruby can also implement evented programming using libraries like EventMachine that provide asynchronous abstractions while keeping app code procedural. The document provides examples of building evented applications in both languages.
Node.js is an introduction to the Node.js platform for developing server-side JavaScript applications. It discusses Node.js background and architecture, JavaScript basics, installing Node.js and setting up a development environment. It then demonstrates building a simple web application using Express and connecting it to MongoDB. The document provides an overview of Node.js advantages like asynchronous non-blocking I/O and event-driven model that make it well-suited for real-time applications and APIs.
Quarkus Hidden and Forbidden ExtensionsMax Andersen
Quarkus has a vast extension ecosystem and is known for its subsonic and subatomic feature set. Some of these features are not as well known, and some extensions are less talked about, but that does not make them less interesting - quite the opposite.
Come join this talk to see some tips and tricks for using Quarkus and some of the lesser known features, extensions and development techniques.
Transform Your Communication with Cloud-Based IVR SolutionsTheSMSPoint
Discover the power of Cloud-Based IVR Solutions to streamline communication processes. Embrace scalability and cost-efficiency while enhancing customer experiences with features like automated call routing and voice recognition. Accessible from anywhere, these solutions integrate seamlessly with existing systems, providing real-time analytics for continuous improvement. Revolutionize your communication strategy today with Cloud-Based IVR Solutions. Learn more at: https://thesmspoint.com/channel/cloud-telephony
Need for Speed: Removing speed bumps from your Symfony projects ⚡️Łukasz Chruściel
No one wants their application to drag like a car stuck in the slow lane! Yet it’s all too common to encounter bumpy, pothole-filled solutions that slow the speed of any application. Symfony apps are not an exception.
In this talk, I will take you for a spin around the performance racetrack. We’ll explore common pitfalls - those hidden potholes on your application that can cause unexpected slowdowns. Learn how to spot these performance bumps early, and more importantly, how to navigate around them to keep your application running at top speed.
We will focus in particular on tuning your engine at the application level, making the right adjustments to ensure that your system responds like a well-oiled, high-performance race car.
Artificia Intellicence and XPath Extension FunctionsOctavian Nadolu
The purpose of this presentation is to provide an overview of how you can use AI from XSLT, XQuery, Schematron, or XML Refactoring operations, the potential benefits of using AI, and some of the challenges we face.
Mobile app Development Services | Drona InfotechDrona Infotech
Drona Infotech is one of the Best Mobile App Development Company In Noida Maintenance and ongoing support. mobile app development Services can help you maintain and support your app after it has been launched. This includes fixing bugs, adding new features, and keeping your app up-to-date with the latest
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AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI AppGoogle
AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App
👉👉 Click Here To Get More Info 👇👇
https://sumonreview.com/ai-fusion-buddy-review
AI Fusion Buddy Review: Key Features
✅Create Stunning AI App Suite Fully Powered By Google's Latest AI technology, Gemini
✅Use Gemini to Build high-converting Converting Sales Video Scripts, ad copies, Trending Articles, blogs, etc.100% unique!
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✅Auto-post or schedule stunning AI content across all your accounts at once—WordPress, Facebook, LinkedIn, Blogger, and more.
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See My Other Reviews Article:
(1) AI Genie Review: https://sumonreview.com/ai-genie-review
(2) SocioWave Review: https://sumonreview.com/sociowave-review
(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
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GraphSummit Paris - The art of the possible with Graph TechnologyNeo4j
Sudhir Hasbe, Chief Product Officer, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Top Features to Include in Your Winzo Clone App for Business Growth (4).pptxrickgrimesss22
Discover the essential features to incorporate in your Winzo clone app to boost business growth, enhance user engagement, and drive revenue. Learn how to create a compelling gaming experience that stands out in the competitive market.
May Marketo Masterclass, London MUG May 22 2024.pdfAdele Miller
Can't make Adobe Summit in Vegas? No sweat because the EMEA Marketo Engage Champions are coming to London to share their Summit sessions, insights and more!
This is a MUG with a twist you don't want to miss.
AI Pilot Review: The World’s First Virtual Assistant Marketing SuiteGoogle
AI Pilot Review: The World’s First Virtual Assistant Marketing Suite
👉👉 Click Here To Get More Info 👇👇
https://sumonreview.com/ai-pilot-review/
AI Pilot Review: Key Features
✅Deploy AI expert bots in Any Niche With Just A Click
✅With one keyword, generate complete funnels, websites, landing pages, and more.
✅More than 85 AI features are included in the AI pilot.
✅No setup or configuration; use your voice (like Siri) to do whatever you want.
✅You Can Use AI Pilot To Create your version of AI Pilot And Charge People For It…
✅ZERO Manual Work With AI Pilot. Never write, Design, Or Code Again.
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See My Other Reviews Article:
(1) TubeTrivia AI Review: https://sumonreview.com/tubetrivia-ai-review
(2) SocioWave Review: https://sumonreview.com/sociowave-review
(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
What is Augmented Reality Image Trackingpavan998932
Augmented Reality (AR) Image Tracking is a technology that enables AR applications to recognize and track images in the real world, overlaying digital content onto them. This enhances the user's interaction with their environment by providing additional information and interactive elements directly tied to physical images.
Hand Rolled Applicative User ValidationCode KataPhilip Schwarz
Could you use a simple piece of Scala validation code (granted, a very simplistic one too!) that you can rewrite, now and again, to refresh your basic understanding of Applicative operators <*>, <*, *>?
The goal is not to write perfect code showcasing validation, but rather, to provide a small, rough-and ready exercise to reinforce your muscle-memory.
Despite its grandiose-sounding title, this deck consists of just three slides showing the Scala 3 code to be rewritten whenever the details of the operators begin to fade away.
The code is my rough and ready translation of a Haskell user-validation program found in a book called Finding Success (and Failure) in Haskell - Fall in love with applicative functors.
Zoom is a comprehensive platform designed to connect individuals and teams efficiently. With its user-friendly interface and powerful features, Zoom has become a go-to solution for virtual communication and collaboration. It offers a range of tools, including virtual meetings, team chat, VoIP phone systems, online whiteboards, and AI companions, to streamline workflows and enhance productivity.
Mobile App Development Company In Noida | Drona InfotechDrona Infotech
Looking for a reliable mobile app development company in Noida? Look no further than Drona Infotech. We specialize in creating customized apps for your business needs.
Visit Us For : https://www.dronainfotech.com/mobile-application-development/
SOCRadar's Aviation Industry Q1 Incident Report is out now!
The aviation industry has always been a prime target for cybercriminals due to its critical infrastructure and high stakes. In the first quarter of 2024, the sector faced an alarming surge in cybersecurity threats, revealing its vulnerabilities and the relentless sophistication of cyber attackers.
SOCRadar’s Aviation Industry, Quarterly Incident Report, provides an in-depth analysis of these threats, detected and examined through our extensive monitoring of hacker forums, Telegram channels, and dark web platforms.
1. Tutorial - 6
• Revision of yesterday lecture
• Create a mini project of a simple calculator
• Create a mini project of todo lis
• What is JSON
• Event loop
• Event loop examples
• callback-queue
• API
• async calls
• setTimeout
• fetch
• Promise
2. Event loop
• Any execution happening in JS is taken care of by its
property of being "single threaded synchronous
language"
• And in order to achieve that we have Execution
Context
• But sometimes we have scenarios of handling the
call back functions or promises where the
behaviour of EC is not regular in order to maintain
JS core value of single threaded + sync. language
3. • Just to achieve that we have something called Event
loop
• Lets look into the pictorial way where is location of JS
4. • Just to highlight one thing that browser instead of
just executing the JS code on client side it has many
other powers also and those powers are called as
Web API, like:
8. • Call back queue is formed by the call backs
• Micro task ques are formed by Promises &
mutation requestes on DOM
• Micro task queue has higher priority then call
back queue
• They both are entertained by event loop
existing between the call-stack and subsequent
queuing system
9. • Because of higher priority of micro tasks
queue over call back queue, it may sometime
may take really long for micro tasks queue to
finished hence it creates a "STARVATION"
situation in for call back queue
• https://www.youtube.com/watch?v=8aGhZQkoFbQ
10. API - Application programming Interface
• Application:
⚬ A call as a template (interface) to perform any operation is
called as API
• Programming:
⚬ API call is related to any particular operation or a
particular program
• Interface:
⚬ These calls are related to any particular endpoint with any
particular predefined template
11.
12. Types of API: There are 2 major kinds of APIs now days
in market - REST API & GraphQL
• REST are bit heavy and have separate endpoints for
separate operation
• GraphQL is super lite and has only 1 endpoint called
"graphql"