Refactoring is the process of restructuring code while not changing its original functionality. The main purpose of refactoring is to enhance the code's readability, maintainability, and overall quality, while reducing technical debt.
This document introduces PHPSpec, a BDD framework for PHP inspired by RSpec. It discusses the principles of behavior-driven development (BDD) and test-driven development (TDD), and how PHPSpec implements a domain-specific language (DSL) that allows developers to write specifications in a natural language style. The document provides examples of how to write PHPSpec specifications using its matchers and contexts, run the specifications, and handle pending and failing tests. It also briefly discusses related tools like mocks, screen scraping with Goutte, and how BDD fits into the development cycle.
I present four design patterns that make your development easier and better. Design patterns are a fantastic way to make more readable code, as they make use of common ideas that many developers know and use. These patterns are tried and tested in the enterprise world.
The first one is dependency injection. This covers putting the variables that a class needs to function preferably inside a constructor.
The second one is the factory pattern. A factory moves the responsibility of instantiating an object to a third-party class.
The third one is dependency injection. This allows us to place a class' dependencies at one time, making it easy to come back and see what the class needs to survive.
Finally, we discuss the chain of responsibility. This allows complex operations to be handled by a chain of classes. Each class in the chain determines whether it is capable of handling the request and, if so, it returns the result.
Vision academy classes bcs_bca_bba_sybba_phpsachin892777
The document provides an overview of the PHP programming language. It discusses what PHP is, its features, basic syntax, variables, data types, operators, conditional statements, loops, forms handling, functions, and variable scopes. Some key points covered include:
- PHP is a server-side scripting language used for web development that allows embedding code into HTML pages.
- It is cross-platform, open source, and compatible with many servers.
- Basic PHP syntax involves wrapping code within <?php ?> tags.
- Variables start with $ and are case-sensitive. Common data types include integers, floats, booleans, strings, arrays, and objects.
- Operators include arithmetic, comparison, logical
PHP 5.3 introduced many new features and improvements including:
- Performance improvements with up to 40% faster speeds on Windows and 5-15% overall.
- New error reporting levels, garbage collection, and the MySQLnd native driver.
- Backwards compatibility changes like deprecated EREG functions and magic methods requirements.
- Namespaces, late static bindings, closures/lambdas, the __callStatic magic method, and get_called_class().
- Additions to the SPL like new iterators, the date/time object, and new constants like __DIR__ and __NAMESPACE__.
- Legacy Perl code is code that uses outdated practices, has no tests or documentation, and is difficult to understand and modify. It often results from organic growth over many years and developers.
- Unit testing legacy code provides safety during refactoring, speeds up development by replacing debugging, and creates regression tests. However, the code's dependencies make it difficult to isolate and test.
- Techniques like dependency injection, sprouting, monkey patching, and temporary object reblessing can help break dependencies and make legacy code more testable. Instrumentation with profilers also aids understanding the code.
Vision Academy – Training Institute in Pune is a pioneer in training Institutes providing various professional training courses for multiple technologies. Proficient professionals and experts constitute an institute. We are working on technological domains as a centre for education to give a comprehensive and most exceptional learning experience in various technologies. Vision Academy is the Leading Professional Training Institute for SEO, Digital Marketing Courses in Pune. We also offer other IT Training’s like AngularJS, MVC, Python, Salesforce, Data Science, AI, Blockchain Hadoop, RPA (Blue Prism, Automation Anywhere, and UI Path) Informatics, Selenium. Our Specialty is that we provide Hands-on Training for all Courses, and All Trainers at our Institute are from MNC’s.
This document introduces PHPSpec, a BDD framework for PHP inspired by RSpec. It discusses the principles of behavior-driven development (BDD) and test-driven development (TDD), and how PHPSpec implements a domain-specific language (DSL) that allows developers to write specifications in a natural language style. The document provides examples of how to write PHPSpec specifications using its matchers and contexts, run the specifications, and handle pending and failing tests. It also briefly discusses related tools like mocks, screen scraping with Goutte, and how BDD fits into the development cycle.
I present four design patterns that make your development easier and better. Design patterns are a fantastic way to make more readable code, as they make use of common ideas that many developers know and use. These patterns are tried and tested in the enterprise world.
The first one is dependency injection. This covers putting the variables that a class needs to function preferably inside a constructor.
The second one is the factory pattern. A factory moves the responsibility of instantiating an object to a third-party class.
The third one is dependency injection. This allows us to place a class' dependencies at one time, making it easy to come back and see what the class needs to survive.
Finally, we discuss the chain of responsibility. This allows complex operations to be handled by a chain of classes. Each class in the chain determines whether it is capable of handling the request and, if so, it returns the result.
Vision academy classes bcs_bca_bba_sybba_phpsachin892777
The document provides an overview of the PHP programming language. It discusses what PHP is, its features, basic syntax, variables, data types, operators, conditional statements, loops, forms handling, functions, and variable scopes. Some key points covered include:
- PHP is a server-side scripting language used for web development that allows embedding code into HTML pages.
- It is cross-platform, open source, and compatible with many servers.
- Basic PHP syntax involves wrapping code within <?php ?> tags.
- Variables start with $ and are case-sensitive. Common data types include integers, floats, booleans, strings, arrays, and objects.
- Operators include arithmetic, comparison, logical
PHP 5.3 introduced many new features and improvements including:
- Performance improvements with up to 40% faster speeds on Windows and 5-15% overall.
- New error reporting levels, garbage collection, and the MySQLnd native driver.
- Backwards compatibility changes like deprecated EREG functions and magic methods requirements.
- Namespaces, late static bindings, closures/lambdas, the __callStatic magic method, and get_called_class().
- Additions to the SPL like new iterators, the date/time object, and new constants like __DIR__ and __NAMESPACE__.
- Legacy Perl code is code that uses outdated practices, has no tests or documentation, and is difficult to understand and modify. It often results from organic growth over many years and developers.
- Unit testing legacy code provides safety during refactoring, speeds up development by replacing debugging, and creates regression tests. However, the code's dependencies make it difficult to isolate and test.
- Techniques like dependency injection, sprouting, monkey patching, and temporary object reblessing can help break dependencies and make legacy code more testable. Instrumentation with profilers also aids understanding the code.
Vision Academy – Training Institute in Pune is a pioneer in training Institutes providing various professional training courses for multiple technologies. Proficient professionals and experts constitute an institute. We are working on technological domains as a centre for education to give a comprehensive and most exceptional learning experience in various technologies. Vision Academy is the Leading Professional Training Institute for SEO, Digital Marketing Courses in Pune. We also offer other IT Training’s like AngularJS, MVC, Python, Salesforce, Data Science, AI, Blockchain Hadoop, RPA (Blue Prism, Automation Anywhere, and UI Path) Informatics, Selenium. Our Specialty is that we provide Hands-on Training for all Courses, and All Trainers at our Institute are from MNC’s.
OOP Is More Then Cars and Dogs - Midwest PHP 2017Chris Tankersley
When developers are introduced to Object Oriented Programming, one of the first things that happens is that they are taught that nouns turn into objects, verbs into methods, and Dog is a subclass of Animal. OOP is more than just turning things into classes and objects and showing that both Boats and Cars have motors, and that Dogs and Cats both speak(). Let's look at OOP in real world settings and go beyond cars and dogs, and see how to use Object Oriented Programming properly in PHP. Traits, Composition, Inheritance, none of it is off limits!
The document provides an introduction and overview of PHP, including:
- PHP is a server-side scripting language used for web development and can be embedded into HTML. It is commonly used to manage dynamic content, databases, sessions, and build ecommerce sites.
- Common uses of PHP include handling forms, accessing and modifying database elements, setting and accessing cookies, and restricting user access to website pages.
- The document then covers PHP syntax, variables, operators, conditional statements, loops, and arrays to provide the basic building blocks of the language.
This document discusses object-oriented programming (OOP) concepts in PHP including access specifiers, properties, methods, the $this keyword, instanceof, and static properties and methods. Code examples are provided to demonstrate how to create a PHP class with properties and methods, set property values using $this, check if an object belongs to a class using instanceof, and define static properties and methods. The document concludes with problems to solve involving writing PHP classes to display messages, calculate factorials, perform basic math operations, calculate averages, and calculate triangle areas and perimeters.
This document discusses dependency injection in Drupal 8. It begins by explaining the problems with Drupal 7 code, such as strong dependencies on globals and an inability to reuse or test code easily. It then introduces dependency injection as a design pattern that can help address these issues by reducing hard-coded dependencies. The document outlines how dependency injection works in Symfony and will work in Drupal 8 through the use of a service container that allows injecting dependencies into classes.
The document discusses the decorator pattern and how it can be used to add functionality to objects at runtime as an alternative to inheritance. It provides examples of how the decorator pattern can be used to dynamically add different discount strategies to a product object without modifying the core product class. The composite pattern is also introduced as a way to group different discount strategies together to calculate a total discount amount.
From framework coupled code to #microservices through #DDD /by @codelytvCodelyTV
From framework coupled code to microservices through DDD modules. The presentation discussed the evolution from monolithic frameworks to microservices architecture through various stages:
1) Old days of framework coupled code with low autonomy, maintainability and learning curve.
2) Use of MVC frameworks improved isolation but code was still highly coupled.
3) Focus on testing drove adoption of SOLID principles at a micro scale.
4) Domain-Driven Design introduced modules per domain concept improving decoupling, semantics and testability.
5) Further decomposition into bounded contexts and microservices provided more autonomy for teams but introduced new accidental complexities around infrastructure and coordination.
When developers are introduced to object-oriented programming, one of the first things they are taught is that nouns turn into objects, verbs into methods, and Dog is a subclass of Animal. OOP is more than just turning things into classes and objects and showing that both Boats and Cars have motors, and that Dogs and Cats both speak(). Let's look at OOP in real-world settings and go beyond cars and dogs to see how to use object-oriented programming properly in PHP. Traits, composition, inheritance – none of it is off limits!
Drupalcon 2023 - How Drupal builds your pages.pdfLuca Lusso
Have you ever wondered what happens when a HTTP request reaches your Drupal web site? How does Drupal find the correct code to execute? Which parts of the page come from the cache and which ones are built from scratch? Which queries are executed against the database? And, why not, how much time and memory the request requires to be converted into a response?
Whether you are a contrib developer or a simple curious person the answers to those questions will let you better understand how Drupal 10 works.
The WebProfiler module can help you in discovering how all the different subsystems of Drupal 10 interact to take a request and return a response. WebProfiler collects data during the build of each page of the site and lets you easily explore the internals of Drupal 10.
2023 - Drupalcon - How Drupal builds your pagessparkfabrik
Have you ever wondered what happens when a HTTP request reaches your Drupal web site? How does Drupal find the correct code to execute? Which parts of the page come from the cache and which ones are built from scratch? Which queries are executed against the database? And, why not, how much time and memory the request requires to be converted into a response?
Whether you are a contrib developer or a simple curious person the answers to those questions will let you better understand how Drupal 10 works.
The WebProfiler module can help you in discovering how all the different subsystems of Drupal 10 interact to take a request and return a response. WebProfiler collects data during the build of each page of the site and lets you easily explore the internals of Drupal 10.
Follow the journey of a request entering the stack middleware, passing the routing component and the controller through the ViewSubscriber and Twig. Discover how services provide functionalities and how events give the opportunity (or the chance) to write decoupled code.
Knowing your system will allow you to find bottlenecks, reduce resources and lower the costs.
Everyone talks about raising the bar on the quality of code, but it’s hard to implement when you have no clue where to start. This talk is geared toward all levels of developers, and will teach you how to improve by using the right tools effectively – a must-attend for any PHP developer who wants to scale up their quality.
Michelangelo will tell us about Quality Assurance for PHP in general and show how different QA-related actions can be performed using PhpStorm IDE. The webinar will cover topics including:
Revision control
Syntax checking
Code documentation
Unit Testing with PHPUnit
Measuring code health with a variety of tools
Profiling and debugging with Xdebug
Automation with Phing
Team work and more.
This document discusses PHPSpec, a behavior-driven development (BDD) framework for PHP. It begins by explaining what PHPSpec is and how it implements BDD through a domain-specific language (DSL) based on RSpec. The document then covers how PHPSpec specifies tests using contexts, examples, expectations, matchers, mocks, and stubs. It provides examples of writing PHPSpec tests and using various PHPSpec features. The document concludes by mentioning upcoming PHPSpec features and linking to resources for learning more.
Coming to Terms with OOP In Drupal - php[world] 2016Chris Tankersley
The document discusses object-oriented programming (OOP) concepts in PHP and Drupal, including classes, objects, inheritance, composition, interfaces, and design principles like the single responsibility principle. It provides examples of how procedural code can be rewritten using OOP patterns to make the code more modular, reusable, and testable. Key benefits of OOP like code reuse and extensibility are highlighted.
This document provides an introduction to mod_rewrite, which allows URL matching and transformation in Apache. It outlines key concepts like RewriteRule, RewriteCond, and RewriteFlags. Regular expressions basics are covered, like wildcards and character classes. Examples show URL beautification and conditional rewrites. RewriteMap is described for more complex rewrites using external programs or files. Caveats of mod_rewrite in .htaccess files are noted, such as relative paths and inability to enable RewriteLog.
The document discusses building testable PHP applications. It covers topics like testing code, testable architecture, dependency injection, and static code analysis tools like PHP Code Sniffer, PHP Mess Detector, and PHP Copy Paster Detector. The document emphasizes that writing tests and designing for testability leads to fewer bugs and more maintainable code. It provides examples of unit testing and recommends test-driven development practices.
WebCamp: Developer Day: DDD in PHP on example of Symfony - Олег ЗинченкоGeeksLab Odessa
DDD in PHP on example of Symfony
Олег Зинченко
В докладе речь пойдет о том, что такое DDD и почему MVC годами вводит нас в заблуждение. Как автор пришёл к мысли о том, что просто писать структурированный код недостаточно. Будут описаны слои приложения DDD, как они взаимодействуют между собой. Какие архитектурные паттерны стоят за DDD и почему они облегчают жизнь разработчика. Когда лучше использовать DDD, какие достоинства и недостатки есть у этого подхода. Примеры использованиея DDD подхода в Symfony приложениях.
So S.O.L.I.D Fu - Designing Better CodeNeil Crookes
A chat about some of the most important principles in software development. Discover or get a refresher on these tried and tested techniques for designing better code.
Code: https://github.com/neilcrookes/SoSOLIDFu/
The document provides best practices for developing with Drupal including getting Drupal from version control, updating modules, using revision control, module development practices like understanding prerequisites and hooks, input validation, avoiding direct database queries, theme development practices like available theme engines and template variables, and overriding themeable functions.
Dart is a productive way to develop future JavaScript apps today. It comes with a complete set of development tools and will help ease development of EcmaScript 6 in 2016. Dart simplifies development by allowing optional variable types and single inheritance for classes. It supports concurrency without threads. Popular IDEs like IntelliJ, WebStorm, and Eclipse support Dart development. Code can run in the Dart VM for fast feedback or compile to JavaScript to run in browsers.
How to improve your code quality? The answer is continuous refactoring. Learn more about refactoring. Know the most frequent code smells (antipatterns), telling when to refactor. Go through the catalog of well-known refactorings, telling how to improve your code.
Power of documentation | Aarati Shah | Gurzu.pdfGurzuInc
Documentation in programming is a critical component of software development that involves creating written or digital resources to explain and clarify various aspects of code, software, or systems. It serves as a bridge between developers, users, and other stakeholders, providing valuable insights and information about the codebase.
In this episode of Knowledge Ketchup, Aarati talks about the power of documentation.
Ganesh Kunwar is a Managing Directer at Gurzu Nepal, a software development company. But he started his career as a programmer, and he still applies the "programmer mindset" he developed back then within his organization.
In this episode of Knowledge Ketchup, he talked about his experiences as a programmer and gave tips on how to develop the "programmer mindset."
Mais conteúdo relacionado
Semelhante a The Art of Refactoring | Asmit Ghimire | Gurzu.pdf
OOP Is More Then Cars and Dogs - Midwest PHP 2017Chris Tankersley
When developers are introduced to Object Oriented Programming, one of the first things that happens is that they are taught that nouns turn into objects, verbs into methods, and Dog is a subclass of Animal. OOP is more than just turning things into classes and objects and showing that both Boats and Cars have motors, and that Dogs and Cats both speak(). Let's look at OOP in real world settings and go beyond cars and dogs, and see how to use Object Oriented Programming properly in PHP. Traits, Composition, Inheritance, none of it is off limits!
The document provides an introduction and overview of PHP, including:
- PHP is a server-side scripting language used for web development and can be embedded into HTML. It is commonly used to manage dynamic content, databases, sessions, and build ecommerce sites.
- Common uses of PHP include handling forms, accessing and modifying database elements, setting and accessing cookies, and restricting user access to website pages.
- The document then covers PHP syntax, variables, operators, conditional statements, loops, and arrays to provide the basic building blocks of the language.
This document discusses object-oriented programming (OOP) concepts in PHP including access specifiers, properties, methods, the $this keyword, instanceof, and static properties and methods. Code examples are provided to demonstrate how to create a PHP class with properties and methods, set property values using $this, check if an object belongs to a class using instanceof, and define static properties and methods. The document concludes with problems to solve involving writing PHP classes to display messages, calculate factorials, perform basic math operations, calculate averages, and calculate triangle areas and perimeters.
This document discusses dependency injection in Drupal 8. It begins by explaining the problems with Drupal 7 code, such as strong dependencies on globals and an inability to reuse or test code easily. It then introduces dependency injection as a design pattern that can help address these issues by reducing hard-coded dependencies. The document outlines how dependency injection works in Symfony and will work in Drupal 8 through the use of a service container that allows injecting dependencies into classes.
The document discusses the decorator pattern and how it can be used to add functionality to objects at runtime as an alternative to inheritance. It provides examples of how the decorator pattern can be used to dynamically add different discount strategies to a product object without modifying the core product class. The composite pattern is also introduced as a way to group different discount strategies together to calculate a total discount amount.
From framework coupled code to #microservices through #DDD /by @codelytvCodelyTV
From framework coupled code to microservices through DDD modules. The presentation discussed the evolution from monolithic frameworks to microservices architecture through various stages:
1) Old days of framework coupled code with low autonomy, maintainability and learning curve.
2) Use of MVC frameworks improved isolation but code was still highly coupled.
3) Focus on testing drove adoption of SOLID principles at a micro scale.
4) Domain-Driven Design introduced modules per domain concept improving decoupling, semantics and testability.
5) Further decomposition into bounded contexts and microservices provided more autonomy for teams but introduced new accidental complexities around infrastructure and coordination.
When developers are introduced to object-oriented programming, one of the first things they are taught is that nouns turn into objects, verbs into methods, and Dog is a subclass of Animal. OOP is more than just turning things into classes and objects and showing that both Boats and Cars have motors, and that Dogs and Cats both speak(). Let's look at OOP in real-world settings and go beyond cars and dogs to see how to use object-oriented programming properly in PHP. Traits, composition, inheritance – none of it is off limits!
Drupalcon 2023 - How Drupal builds your pages.pdfLuca Lusso
Have you ever wondered what happens when a HTTP request reaches your Drupal web site? How does Drupal find the correct code to execute? Which parts of the page come from the cache and which ones are built from scratch? Which queries are executed against the database? And, why not, how much time and memory the request requires to be converted into a response?
Whether you are a contrib developer or a simple curious person the answers to those questions will let you better understand how Drupal 10 works.
The WebProfiler module can help you in discovering how all the different subsystems of Drupal 10 interact to take a request and return a response. WebProfiler collects data during the build of each page of the site and lets you easily explore the internals of Drupal 10.
2023 - Drupalcon - How Drupal builds your pagessparkfabrik
Have you ever wondered what happens when a HTTP request reaches your Drupal web site? How does Drupal find the correct code to execute? Which parts of the page come from the cache and which ones are built from scratch? Which queries are executed against the database? And, why not, how much time and memory the request requires to be converted into a response?
Whether you are a contrib developer or a simple curious person the answers to those questions will let you better understand how Drupal 10 works.
The WebProfiler module can help you in discovering how all the different subsystems of Drupal 10 interact to take a request and return a response. WebProfiler collects data during the build of each page of the site and lets you easily explore the internals of Drupal 10.
Follow the journey of a request entering the stack middleware, passing the routing component and the controller through the ViewSubscriber and Twig. Discover how services provide functionalities and how events give the opportunity (or the chance) to write decoupled code.
Knowing your system will allow you to find bottlenecks, reduce resources and lower the costs.
Everyone talks about raising the bar on the quality of code, but it’s hard to implement when you have no clue where to start. This talk is geared toward all levels of developers, and will teach you how to improve by using the right tools effectively – a must-attend for any PHP developer who wants to scale up their quality.
Michelangelo will tell us about Quality Assurance for PHP in general and show how different QA-related actions can be performed using PhpStorm IDE. The webinar will cover topics including:
Revision control
Syntax checking
Code documentation
Unit Testing with PHPUnit
Measuring code health with a variety of tools
Profiling and debugging with Xdebug
Automation with Phing
Team work and more.
This document discusses PHPSpec, a behavior-driven development (BDD) framework for PHP. It begins by explaining what PHPSpec is and how it implements BDD through a domain-specific language (DSL) based on RSpec. The document then covers how PHPSpec specifies tests using contexts, examples, expectations, matchers, mocks, and stubs. It provides examples of writing PHPSpec tests and using various PHPSpec features. The document concludes by mentioning upcoming PHPSpec features and linking to resources for learning more.
Coming to Terms with OOP In Drupal - php[world] 2016Chris Tankersley
The document discusses object-oriented programming (OOP) concepts in PHP and Drupal, including classes, objects, inheritance, composition, interfaces, and design principles like the single responsibility principle. It provides examples of how procedural code can be rewritten using OOP patterns to make the code more modular, reusable, and testable. Key benefits of OOP like code reuse and extensibility are highlighted.
This document provides an introduction to mod_rewrite, which allows URL matching and transformation in Apache. It outlines key concepts like RewriteRule, RewriteCond, and RewriteFlags. Regular expressions basics are covered, like wildcards and character classes. Examples show URL beautification and conditional rewrites. RewriteMap is described for more complex rewrites using external programs or files. Caveats of mod_rewrite in .htaccess files are noted, such as relative paths and inability to enable RewriteLog.
The document discusses building testable PHP applications. It covers topics like testing code, testable architecture, dependency injection, and static code analysis tools like PHP Code Sniffer, PHP Mess Detector, and PHP Copy Paster Detector. The document emphasizes that writing tests and designing for testability leads to fewer bugs and more maintainable code. It provides examples of unit testing and recommends test-driven development practices.
WebCamp: Developer Day: DDD in PHP on example of Symfony - Олег ЗинченкоGeeksLab Odessa
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В докладе речь пойдет о том, что такое DDD и почему MVC годами вводит нас в заблуждение. Как автор пришёл к мысли о том, что просто писать структурированный код недостаточно. Будут описаны слои приложения DDD, как они взаимодействуют между собой. Какие архитектурные паттерны стоят за DDD и почему они облегчают жизнь разработчика. Когда лучше использовать DDD, какие достоинства и недостатки есть у этого подхода. Примеры использованиея DDD подхода в Symfony приложениях.
So S.O.L.I.D Fu - Designing Better CodeNeil Crookes
A chat about some of the most important principles in software development. Discover or get a refresher on these tried and tested techniques for designing better code.
Code: https://github.com/neilcrookes/SoSOLIDFu/
The document provides best practices for developing with Drupal including getting Drupal from version control, updating modules, using revision control, module development practices like understanding prerequisites and hooks, input validation, avoiding direct database queries, theme development practices like available theme engines and template variables, and overriding themeable functions.
Dart is a productive way to develop future JavaScript apps today. It comes with a complete set of development tools and will help ease development of EcmaScript 6 in 2016. Dart simplifies development by allowing optional variable types and single inheritance for classes. It supports concurrency without threads. Popular IDEs like IntelliJ, WebStorm, and Eclipse support Dart development. Code can run in the Dart VM for fast feedback or compile to JavaScript to run in browsers.
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In this episode of Knowledge Ketchup, Aarati talks about the power of documentation.
Ganesh Kunwar is a Managing Directer at Gurzu Nepal, a software development company. But he started his career as a programmer, and he still applies the "programmer mindset" he developed back then within his organization.
In this episode of Knowledge Ketchup, he talked about his experiences as a programmer and gave tips on how to develop the "programmer mindset."
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3. If all documents are ready, including company letter, tax withholding details, and payroll records, then an individual can submit them to the tax office where their company is registered. With correct documentation, a tax clearance certificate can be received within 1-2 hours depending on volume.
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Design thinking refers to the set of cognitive, strategic and practical procedures used by designers in the process of designing, and to the body of knowledge that has been developed about how people reason when engaging with design problems.
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What is upgrading and what is updating software? Infrastructure Engineer Ashraya Tuladhar talks about differences in the eighth chapter of Knowledge Ketchup at Gurzu.
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Fantastic Blogs and How to Write Them | Alaka Acharya.pptxGurzuInc
Engineers are not writers, but it sure helps them to write once in a while. Our engineering blog in Gurzu is where our experts tell stories of how they solve complex problems. And we hope these blogs can help other people too.
Writing engineering blog is just like your project's documentation. But editors have to keep things like readability, and SEO in mind. Here is a short guide on how engineers can write better blogs that are easier to read (and edit).
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In the second chapter of Knowledge Ketchup at Gurzu, Engineer Aadit Shrestha talked briefly about DDoS attack.
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Rails 7 introduces Hotwire and Turbo as the default front-end framework for Ruby on Rails applications. The powerful combination of Stimulus.js and Turbo aims to accelerate application performance and streamline the development of Single Page Applications. With Hotwire and Turbo, developers can achieve lightning-fast page loads, minimal client-side JavaScript, and a smoother, more intuitive user experience.
Automation refers to software testing techniques that automate manual testing processes to minimize human intervention and speed up testing. Automation is best for critical scenarios that require repetitive tests across different environments. While automation cannot replace human judgment, it is useful for test cases involving large volumes of data input or quality assurance. Organizations should automate tests that add value and free up humans for more creative work, but not automate user experience testing or tests for rapidly developed features.
What makes the things we look in the internet beautiful? CSS plays a big role in making the internet beautiful. But how? In this presentation, we will learn about artistic history of web, the present state and future. We will mostly talk about the current state of CSS and what might come next. Also, we will touch upon ethics of web designer and carbon footprint of websites.
Discussion Regarding benefits on taxes on income from employment.pptxGurzuInc
Any person who earns income is liable to tax as per rules of country.
In Regards of employment , an employer shall deduct the TDS ( called as Remuneration Tax ) during payment of remuneration ( salary and allowances) to its employees as per rules of Income Tax Act of Nepal 2058
An employee can have various benefits on such taxes as per the Act during fiscal year
Please note act shall be changed timely as per necessity of government , usually changes can be seen in budget declaration yearly.
Let's discuss about
Tax Rates on income from employments
Tax benefits in income from employment
Taxation on Retirement contribution
How not to Model Data - G1 conference.pptxGurzuInc
Data modeling is the process of creating a visual representation of either a whole information system or parts of it to communicate connections between data points and structures. It involves physical model, logical model and conceptual model. Generally when modeling data, the first thing that comes to mind is How to store data.
But is this how data modeling should be done? What would be your ideal approach?
Based on past experiences, the most important thing in my opinion would be fetching the stored data.
RTM and Test Closure Report Gurzu Inc.pptxGurzuInc
As a QA, I spend a considerable amount of time in finding and implementing tools that make our work easier and more efficient. RTM and test closure report, both are some of those tools I use in my daily work.
RTM is a document that maps and co-relates requirements with test cases. It is used to track the requirements and to check if the requirements are met or not. This single document keeps record of all the issues, tests, test results, client demands and validates that all the requirements are checked during software testing.
A test closure report is created once the testing of a software is completed successfully, and the product has met the exit criteria. This report describes the testing activities performed by QA.
Test closure report is created by a QA engineer and is reviewed by all the stakeholders. Test closure reports provide a detailed analysis of the types of testing performed, process followed, the status of bugs, and the details of the open defects. Every QA team prepares this report to ensure that the product release is stable.
Application Programming Interface (API) is a software interface that allows two applications to interact with
each other without any user intervention. It can be used to get access to data from the third parties and to hide complexity and perform the task.
Building CI_CD for Mobile Development.pptxGurzuInc
Continuous integration (CI) and continuous delivery (CD) embody a culture, set of operating principles, and collection of practices that enable application development teams to deliver code changes more frequently and reliably.
React Native is a JavaScript framework for writing real, natively rendering mobile applications for iOS and Android.
Two ways we can start building mobile apps using React Native:
Expo [Previously Used]
Core React Native [Currently using]
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
The CBC machine is a common diagnostic tool used by doctors to measure a patient's red blood cell count, white blood cell count and platelet count. The machine uses a small sample of the patient's blood, which is then placed into special tubes and analyzed. The results of the analysis are then displayed on a screen for the doctor to review. The CBC machine is an important tool for diagnosing various conditions, such as anemia, infection and leukemia. It can also help to monitor a patient's response to treatment.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
artificial intelligence and data science contents.pptxGauravCar
What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason.
› ...
Artificial intelligence (AI) | Definitio
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
2. Introduction
➔ Refactoring is the process of
restructuring code while not changing
its original functionality.
➔ The main purpose of refactoring is to
enhance the code's readability,
maintainability, and overall quality,
making it easier to understand and
modify while reducing technical debt.
3. Why Refactoring Matters
➔ Improved code quality / readability
➔ Maintainability
➔ Reduced technical debt
➔ Quicker issue diagnosis
➔ Enhanced team collaboration
➔ Improved extensibility
➔ Performance gain in some cases
4. Signs It's Time to
Refactor
➔ Code Duplication
➔ Long Methods / Functions
➔ Complex Conditional
Statements
➔ Tight Coupling
➔ Performance Issues
➔ Changing Requirements
➔ Excessive Comments
5. Refactoring Techniques
➔ Descriptive names to variables,
methods, and classes
➔ Replace Magic Numbers with Named
Constants
➔ Consolidate Conditional Expressions
➔ Introduce Explaining Variable
➔ Introduce Parameter Object
➔ Remove Dead Code
➔ Separate Concerns with Design Patterns
➔ Pull Up / Push Down Methods
➔ Replace Conditional with Polymorphism
6. Pull Up Method
➔ Problem
◆ Your subclasses have methods that perform
similar work.
➔ Solution
◆ Make the methods identical and then move
them to the relevant superclass.
7. Push Down Method
➔ Problem
◆ Is behavior implemented in a superclass used by only one (or a few)
subclasses?
➔ Solution
◆ Move this behavior to the subclasses.
8. Replace Conditionals
with Polymorphism
➔ Problem
◆ You have a conditional that
performs various actions depending
on object type or properties.
class Bird {
// ...
public function getSpeed() {
switch ($this->type) {
case EUROPEAN:
return $this->getBaseSpeed();
case AFRICAN:
return $this->getBaseSpeed() -
$this->getLoadFactor() * $this->numberOfCoconuts;
case NORWEGIAN_BLUE:
return ($this->isNailed) ? 0 :
$this->getBaseSpeed($this->voltage);
}
throw new Exception("Should be unreachable" );
}
// ...
}
9. Replace Conditionals
with Polymorphism
➔ Solution
◆ Create subclasses matching the
branches of the conditional.
◆ In them, create a shared method and
move code from the corresponding
branch of the conditional to it.
◆ Then replace the conditional with the
relevant method call.
abstract class Bird {
// ...
abstract function getSpeed();
// ...
}
class European extends Bird {
public function getSpeed() {
return $this->getBaseSpeed();
}
}
class African extends Bird {
public function getSpeed() {
return $this->getBaseSpeed() -
$this->getLoadFactor() *
$this->numberOfCoconuts;
}
}
class NorwegianBlue extends Bird {
public function getSpeed() {
return ($this->isNailed) ? 0 :
$this->getBaseSpeed($this->voltage);
}
}
// Somewhere in Client code.
$speed = $bird->getSpeed();
10. Steps to Successful Refactoring
➔ Identify the target area for refactoring.
➔ Understand the existing behavior and write tests.
➔ Apply the chosen refactoring technique.
➔ Run tests to verify correctness.
➔ Commit changes to version control.
11. Tools and Resources
➔ SonarQube: Provides extensive static
code analysis, detecting bugs,
vulnerabilities, and code smells across
multiple languages.
➔ CodeClimate: Analyzes code quality,
security, and maintainability, offering
insights and metrics.
12. Challenges
➔ Time and Resources
➔ Risk of Introducing Bugs
➔ Lack of Automated Tests
➔ Legacy Code and Dependencies
➔ Team Buy-In
➔ Scope Creep
➔ Balancing Refactoring with New Features
➔ Resistance to Change
➔
13. “Code refactoring is like doing the dishes: it's not fun, but
leaving them all piled up will make things worse.”