#HTML code and retrieved your output

[gagande]

PureCode software reviews | No Server-Side Data Storage

One key measure that ensures your data’s privacy is the fact that HTML formatter tools do not save any user data on the server. This means that once you’ve formatted your HTML code and retrieved your output, your original code isn’t stored anywhere on the formatter tool’s servers.

[tccicomputercoaching]

Top Django Interview Questions and Answers in 2025

Introduction

If you're aiming for a career in web development, you've probably come across Django, and guess what? It's still going strong in 2025. Whether you're a fresh graduate or an experienced developer eyeing a transition, knowing the top Django interview questions and answers will give you a big edge.

From start-ups to the world's biggest social networking site Instagram, this framework has changed things a lot. It's one of the favorites due to its simplicity, security, and scalability. But with the increasing competition, interviewers have started to pick brains. So let us prepare you with some of the most relevant and updated top Django interview questions and answers that you will need for 2025.

Basics of Django

What is Django?

Django is a high-level Python web framework that lets you rapidly develop secure and maintainable web applications with as little coding as possible. Basically, it follows the "batteries-included" philosophy, which states that user authentication, content management, and database administration are included from the start.

Key Features of Django Framework

MTV architecture (Model-Template-View)

ORM (Object-Relational Mapping)

Admin Interface

Built-in security features

Highly scalable and portable

What Are Django’s Advantages over Other Frameworks?

It's Pythonic-clean and easy to read

Fastest development cycle

Rich documentation

Large community

Tons of third-party packages

Django Interview Questions Asked Quite Often (Beginner Level)

Explain MTV Architecture in Django?

MTV stands for:

Model: It defines what the data structure is.

Template: HTML-like design files.

View: Contains business logic that connects the models and templates.

It's like the way Django interprets Model-View-Controller.

How Does a Request in Django Differs from a Response?

Every HTTP request in Django goes through many processes, that are URL dispatcher, view function, and finally returning an HTTPResponse object. It simply can be thought as a pipeline managing routing, logic, and output.

What Are Models in Django?

Models specify the structure of your database in terms of Python classes; they also act as a bridge between the application and the database using Django's ORM.

Intermediate Questions for Django Interviews

How to Differentiate between a Project and an App?

Project: The entire web application.

App: A component or module within a project (eg., blog, cart, and user).

You can plug many apps into one project.

What Are QuerySets, and How Do They Work?

A queryset is a collection of queries that can be executed against a database to retrieve objects. It is lazy — meaning it will not query the database until the results are explicitly requested.

Advanced Questions for Django Interviews

How are Security Issues (XSS, CSRF, etc.) Handled by Django?

Django has built-in protections against:

CSRF tokens in forms

Auto-escaping of templates in XSS

SQL injection with an ORM

Protection against clickjacking by middleware

What Is Middleware in Django?

Middleware is a framework of hooks into Django's request/response processing. It is a light, low-level plugin system for globally altering Django's input or output. For example, it can be useful for:

Logging requests

Modifying responses

Enforcing authentication

What Are Ways to Enhance Django Application Performance?

Use caching (Redis or Memcached).

Optimize QuerySets.

Minimize template logic.

Compress static files.

Use Django Debug Toolbar for diagnosis.

Real-life Scenario Questions

What Will You Do to Scale a Django App under Heavy Load?

Load balancing.

Caching with Redis.

Use CDNs for serving static/media.

Database indexing optimization.

Perform asynchronous tasks with Celery.

How to Connect Django with Frontend Frameworks like React?

Using Django REST Framework for building APIs.

Serve the React app separately or embed it inside templates.

Handle authorization either through JWT or session-based login.

Which Tools Are Used for Testing in Django?

unittest (built-in)

pytest-django

py for test coverage

factory_boy for test data

Tips to Crack Django Interviews

Practice Coding Daily

Even 30 minutes a day adds up so quickly, and try to focus on real-world projects.

Build Real Projects

Nothing beats practical experience. Try to build a blog, an e-commerce site, or a task manager.

Mock Interviews and Technical Tests

Use a platform like Pramp or Interviewing.io to get a feel for what a real interview will be like.

Conclusion

In 2025, mastering the top Django interview questions and answers can be the very key to opening up your way into a development career. Companies have trusted Django for its speed, security, and scalability, and now, being prepared seems to be your golden ticket. Whether you are brushing up or new to the area, this guide will make you succeed.

At TCCI, we don't just teach computers — we build careers. Join us and take the first step toward a brighter future.

Location: Bopal & Iskcon-Ambli in Ahmedabad, Gujarat

Call now on +91 9825618292

Visit Our Website: http://tccicomputercoaching.com/

Note: This Post was originally published on TCCI - Tririd Computer Coaching Institute and is shared here for educational purposes.

[outsourcebigdata]

Top 6 Scraping Tools That You Cannot Miss in 2024

In today's digital world, data is like money—it's essential for making smart decisions and staying ahead. To tap into this valuable resource, many businesses and individuals are using web crawler tools. These tools help collect important data from websites quickly and efficiently. 

What is Web Scraping? 

Web scraping is the process of gathering data from websites. It uses software or coding to pull information from web pages, which can then be saved and analyzed for various purposes. While you can scrape data manually, most people use automated tools to save time and avoid errors. It’s important to follow ethical and legal guidelines when scraping to respect website rules. 

Why Use Scraping Tools? 

Save Time: Manually extracting data takes forever. Web crawlers automate this, allowing you to gather large amounts of data quickly. 

Increase Accuracy: Automation reduces human errors, ensuring your data is precise and consistent. 

Gain Competitive Insights: Stay updated on market trends and competitors with quick data collection. 

Access Real-Time Data: Some tools can provide updated information regularly, which is crucial in fast-paced industries. 

Cut Costs: Automating data tasks can lower labor costs, making it a smart investment for any business. 

Make Better Decisions: With accurate data, businesses can make informed decisions that drive success. 

Top 6 Web Scraping Tools for 2024 

APISCRAPY

APISCRAPY is a user-friendly tool that combines advanced features with simplicity. It allows users to turn web data into ready-to-use APIs without needing coding skills. 

Key Features: 

Converts web data into structured formats. 

No coding or complicated setup required. 

Automates data extraction for consistency and accuracy. 

Delivers data in formats like CSV, JSON, and Excel. 

Integrates easily with databases for efficient data management. 

ParseHub

ParseHub is great for both beginners and experienced users. It offers a visual interface that makes it easy to set up data extraction rules without any coding. 

Key Features: 

Automates data extraction from complex websites. 

User-friendly visual setup. 

Outputs data in formats like CSV and JSON. 

Features automatic IP rotation for efficient data collection. 

Allows scheduled data extraction for regular updates. 

Octoparse

Octoparse is another user-friendly tool designed for those with little coding experience. Its point-and-click interface simplifies data extraction. 

Key Features: 

Easy point-and-click interface. 

Exports data in multiple formats, including CSV and Excel. 

Offers cloud-based data extraction for 24/7 access. 

Automatic IP rotation to avoid blocks. 

Seamlessly integrates with other applications via API. 

Apify

Apify is a versatile cloud platform that excels in web scraping and automation, offering a range of ready-made tools for different needs. 

Key Features: 

Provides pre-built scraping tools. 

Automates web workflows and processes. 

Supports business intelligence and data visualization. 

Includes a robust proxy system to prevent access issues. 

Offers monitoring features to track data collection performance. 

Scraper API

Scraper API simplifies web scraping tasks with its easy-to-use API and features like proxy management and automatic parsing. 

Key Features: 

Retrieves HTML from various websites effortlessly. 

Manages proxies and CAPTCHAs automatically. 

Provides structured data in JSON format. 

Offers scheduling for recurring tasks. 

Easy integration with extensive documentation. 

Scrapy

Scrapy is an open-source framework for advanced users looking to build custom web crawlers. It’s fast and efficient, perfect for complex data extraction tasks. 

Key Features: 

Built-in support for data selection from HTML and XML. 

Handles multiple requests simultaneously. 

Allows users to set crawling limits for respectful scraping. 

Exports data in various formats like JSON and CSV. 

Designed for flexibility and high performance. 

Conclusion 

Web scraping tools are essential in today’s data-driven environment. They save time, improve accuracy, and help businesses make informed decisions. Whether you’re a developer, a data analyst, or a business owner, the right scraping tool can greatly enhance your data collection efforts. As we move into 2024, consider adding these top web scraping tools to your toolkit to streamline your data extraction process. 

[yourgamemasterthewhiterabbit]

Sorry I am not treating your post as less important, I was reblogging it to get eyes on it and to try to get tumblr to crowd source a tutorial from someone who knows how and has the spoons.

I recognize your post was a simple request to do it, but all the posts about it I see are a request to do it and I cannot ever find instructions anywhere on how in a way that's confirmed to work, and I was hoping someone could confirm a process. So there is usually a button to submit alt text, and if not there's html code that can be inserted into the post directly, is what I am getting from this?

Sometimes i just add text to a post describing the image but I have no way of knowing if it is "tagged" correctly, etc for the screen reader to acknowledge it as the alt text for the image, like as proper official alt text as a proper descriptor to a program, like the name of a string it would retrieve and output, which is why I was putting it in quotes. That's what I mean by "formatting", do we just add html to the post and then what is html that someone knows actually works on tumblr, because a lot of inserted html doesn't [I have tried].

These questions are rhetorical and to the larger audience, not me trying to grill you personally for answers. I am asking this of anyone who wants to answer on tumblr at large.

I have looked for a button on tumblr or an option and have never seen it, does someone [not to be passive aggressive, but to literally ask for someone who might need to be able to visually describe tumblr and knows where it is] know where the button is and can they add it to this post? Or to any post they see asking for people to add alt text, because the only reason I don't do it more habitually is I literally can't figure out how to. I am not saying that argumentatively, I am trying to give the literal reason it isn't happening more from my personal experience of the site.

I'm saying if someone wanted to figure out how this actually works on tumblr and the actual process of how to do it, and add that to the posts asking for alt text, someone who has the time and energy to figure it out, it might get a lot done. Not "more than your post" but as a helpful addition to all of these posts so that the people who only aren't doing it because they don't know how to get their answer.

I would have made a separate post asking if anyone knew how, but generally if I make a post asking questions myself they sit there with 0 notes forever and don't help anything. It seemed like asking the question where people would see it and could respond much more publicly might get more done.

The reason I didn't look it up is because I had before multiple times and gotten nowhere and I didn't have the energy, I was busy going through boxes and totes and am suffering with some cognitive symptoms at the moment, but since I'm typing this anyway, now, I tried again and it says this:

"After adding an image to your post, tap the 3 dots in the lower right corner to add alt text. The alt text should be a brief description of your image, as if you were describing it to someone over the phone, to make your post accessible to folks using a screen reader."

Which I was never able to do before because I can't find the circles they are talking about.

So let's try to confirm if this is updates and works!

The option doesn't show for me except as a transparent -now grey- circle in the bottom right and it took actual work to click on at all because of how skinny the image is, but it is not three dots and I am not sure it has always loaded properly for me before because I could never find it. It is showing as a grey shadow behind the red x button to close the image and I am not sure if it always does that or if it's the image dimensions, but it would explain me not being able to find it.

it should read: "A badly drawn image of 9 dots coloured red, orange, yellow, bright green, cyan, royal blue, purple and magenta, the last one being split between black and white. They are sloppy attempted circles by someone with poor coordination using a mouse"

Did that work? [anyone who wants to answer]

Is that the preferable process compared to:

[image id: A badly drawn image of 9 dots coloured red, orange, yellow, bright green, cyan, royal blue, purple and magenta, the last one being split between black and white. They are sloppy attempted circles by someone with poor coordination using a mouse"]

?

Which is what I usually see done on posts. Should we use both? Are other people having trouble finding the option/button to add alt text?

My frustration isn't at you, and was never intended to sound that way, if I sounded frustrated, it has always been that no one seeing -who knows how to describe the process- has been piping up to actually explain how anyone is supposed to actually go about adding alt text. I see posts all the time asking for it to be done, and I always reblog them to boost the issue, but -as a tech savvy person who can program and is good with computers- could not find a button or get a straight answer about how to, until now, which no one was adding to any of the posts.

It has been my thinking that it shouldn't be up to the visually impaired to know the exact process, because I am assuming they are not the ones ever actually adding the description, and may not even be able to see the site at all. The "someone" isn't me passive aggressively saying "you", it's me putting out a general call to help.

I was fully expecting some other seeing person would know the answer and do the work of explaining it to the class, so that someone in your position doesn't have to, but no one ever has.

For anyone else curious, it is supposed to be 3 white dots at the bottom right of the photo that only comes up if you mouse over it, and for me is a circle that ranges from grey to invisible, and if the options load at all, one of them is "update image description", which gives you a box to type in with some instruction. I personally just put plain text in the box and someone is probably going to tell me whether or not it worked.

Maybe part of my problem has been parts of tumblr refusing to load properly or at all for me, but if other people are unable to see the option at all, maybe staff could check on that and do something to at least optimize the page or prioritize it loading properly?

There was, up until just now, to the best of my knowledge, nowhere to actually input a description on this site other than just literally adding a text description under the image, which I figured would have to be denoted or 'tagged' a specific way if screen readers were going to catch it and realize it was a proper description of the image.

Part of the problem is that most people who don't use them do not know how screen readers work or how they are coded to function with the site, and the people requesting descriptions largely maybe don't know how visually hidden or -absent- the option to add alt text is, and I was trying to get this disconnect solved, because I figured that was the fastest rout to way more people adding proper alt text.

I literally have not seen that grey circle until today, but also sometimes the site just loads up blank for me for a half hour at a time and I was shadow banned for something like 3 years, so it might mostly be me. I just keep going "okay I have a banger of a description to add but WHERE" and I figured a lot of people were in the same boat as me.

Please forgive how horrifically this was recorded (the screen reader mutes itself in recordings, which made it entirely useless for this post, which required a second camera) but I wanted to show people what alt text Actually Does for screen readers because I think a lot more people would take the time to add it if they knew why.

This is how the default screen reader function built into my phone "reads" an image, one without alt text and one with.

(I can't add alt text description to videos, it seems, which feels a little ironic given the post.)

When the first image, without alt text, is selected by a screen reader, it just reads out "photo".

When the second image, with alt text, is selected, it reads out the alt text - in this case, "A blurry picture of a gray tabby cat sitting on a white carpeted floor.".

Being able to use alt text is far easier on screen readers because the image is a larger object to select - descriptions in plain text below an image are still helpful, but require enough vision to accurately select, and enough vision to know they're an image description to begin with.

So please, when possible, add alt text to photos, art, and screenshots you're uploading! A lot of phones can copy text from images now, which is how I add image IDs to other people's text heavy posts - there's really no reason to post a bunch of text heavy screencaps and not at least copy and paste the text into the alt text, and it makes a huge difference for accessibility.

Thank you! ^w^

[bytesfarms]

How to Optimize Visualforce Pages for Better Performance

Optimizing Visualforce pages for better performance involves several key practices to enhance user experience and minimize load times. Here are some tips:

Reduce View State Size: Keep the view state size as small as possible to minimize bandwidth consumption and improve page load times. Avoid using unnecessary components and minimize the use of apex:form and apex:pageBlock components.

Limit Data Binding: Only bind data that is necessary for rendering the page. Avoid binding large data sets or unnecessary fields.

Minimize Server-Side Processing: Reduce the number of server-side calls by consolidating logic and data retrieval operations. Use Apex controllers efficiently to fetch only the required data.

Optimize SOQL Queries: Make sure your SOQL queries are selective and efficient. Use WHERE clauses to filter records and limit the number of rows returned.

Implement Lazy Loading: Load data dynamically as needed, especially for large data sets. Use techniques such as pagination and lazy loading to minimize initial page load times.

Cache Data: Cache frequently accessed data in static variables or in Salesforce caching mechanisms like platform cache or custom caching solutions. This reduces the need for repeated data retrieval from the database.

Use Client-Side Caching: Leverage browser caching by setting appropriate cache-control headers and utilizing techniques like JavaScript caching where applicable.

Optimize JavaScript and CSS: Minimize the size of JavaScript and CSS files by removing unnecessary code and whitespace. Combine multiple files into a single file where possible to reduce HTTP requests.

Enable Gzip Compression: Enable Gzip compression on your server to reduce the size of transmitted data and improve page load times.

Optimize Images: Compress images to reduce file size without sacrificing quality. Use image formats like JPEG or PNG, and consider lazy loading images that are below the fold.

Use Asynchronous Processing: Execute long-running operations asynchronously to prevent blocking the UI and improve responsiveness.

Implement Caching Mechanisms: Utilize browser caching and caching mechanisms provided by Visualforce, such as apex:cacheable, to cache rendered output or expensive computations.

Optimize Visualforce Markup: Minimize the use of complex Visualforce components and keep markup simple and clean. Avoid excessive nesting of components and use standard HTML elements where possible.

Monitor and Analyze Performance: Regularly monitor page load times and analyze performance using tools like Salesforce Inspector or browser developer tools. Identify bottlenecks and areas for improvement.

By following these best practices, you can optimize Visualforce pages for better performance, resulting in improved user experience and increased efficiency.

visit our website: bytesfarms.com

[iquallinfoweb]

Benefits to Hire PHP Developers from India : Your Remote PHP Development Team

PHP, which stands for Hypertext Preprocessor, is a widely-used open-source scripting language primarily designed for web development. Created by Danish-Canadian programmer Rasmus Lerdorf in 1994, PHP was initially developed as a set of tools to manage his personal website. Over time, it evolved into a robust server-side scripting language that powers millions of websites and web applications across the internet.

PHP is particularly well-suited for web development due to its simplicity, flexibility, and versatility. It is embedded directly into HTML, the standard markup language used to create web pages, allowing developers to seamlessly integrate dynamic content and functionality into their websites. PHP scripts are executed on the server, generating HTML output that is then sent to the client’s web browser for display.

One of PHP’s key strengths is its ability to interact with databases, enabling developers to create dynamic and interactive websites that store and retrieve information from databases such as MySQL, PostgreSQL, and SQLite. This capability is essential for building dynamic web applications like content management systems (CMS), e-commerce platforms, social networks, and online forums.

Benefits of Using PHP 

Using PHP in website development offers numerous benefits that contribute to its popularity and widespread adoption among developers and businesses. Some of the key advantages of using PHP include:

Open-Source: PHP is an open-source scripting language, meaning it is freely available for anyone to use, modify, and distribute. This accessibility fosters collaboration, innovation, and community-driven development, resulting in a rich ecosystem of tools, frameworks, and resources that benefit developers and businesses alike.

Platform Independence: PHP runs on various operating systems, including Linux, Windows, macOS, and Unix, making it a platform-independent language. Developers can write PHP code on one platform and deploy it on another without encountering compatibility issues, providing flexibility and scalability across different environments.

Ease of Learning and Use: PHP features a simple and straightforward syntax that is easy to learn, understand, and use, especially for developers with prior experience in HTML and web development. Its intuitive nature allows developers to write clean, concise code efficiently, reducing development time and effort.

Integration with Databases: PHP seamlessly integrates with popular databases such as MySQL, PostgreSQL, SQLite, and MongoDB, enabling developers to build dynamic and data-driven websites and web applications. PHP’s database connectivity features facilitate tasks such as data storage, retrieval, manipulation, and management, empowering developers to create robust and scalable solutions.

Extensive Library Support: PHP boasts a vast ecosystem of pre-built functions, libraries, and frameworks that streamline common web development tasks and accelerate project development. From handling file operations and processing form submissions to implementing authentication and encryption mechanisms, PHP’s extensive library support provides developers with the tools they need to build feature-rich and secure applications efficiently.

Scalability and Performance: PHP is highly scalable and performs well under heavy workloads, making it suitable for building websites and applications of all sizes and complexities. With optimizations such as opcode caching, bytecode compilation, and performance tuning, PHP applications can achieve impressive performance and responsiveness, ensuring a seamless user experience even during peak traffic periods.

Community Support and Resources: PHP enjoys a large and active community of developers, contributors, and enthusiasts who collaborate on improving the language, sharing knowledge, and providing support through forums, documentation, tutorials, and online communities. This vibrant ecosystem ensures that developers have access to a wealth of resources, best practices, and solutions to common challenges, empowering them to overcome obstacles and succeed in their projects.

In today’s digital landscape, finding the right talent for web development is crucial for businesses aiming to create robust, dynamic, and scalable online platforms. One destination that has emerged as a powerhouse for skilled tech professionals is India. Specifically, when it comes to PHP development, India stands out as a preferred choice for numerous companies worldwide. 

Benefits that Come with Hire PHP Developers From i-Quall Infoweb

Fully dedicated to your project: Our dedicated team focuses solely on your project, propelling its progress without compromising quality. This commitment ensures meticulous execution, innovation, and efficient outcomes while maintaining superior standards.

Expert Developers, Zero Training Hassles: Engage seasoned professionals, bypassing training expenses and time. Their immediate integration, honed skills, and expertise expedite high-quality solutions, eliminating training overheads.

Cost-Efficient Tailored Solutions: We analyze your needs meticulously to craft cost-effective solutions without compromising quality. Through strategic planning and innovative methods, we ensure value, sustainability, and maximum return on investment.

Get multiple skills on demand from an international platform: Access a global talent pool for varied expertise, fostering innovation and adaptability. This expansive network offers flexibility to scale and diversify your team swiftly.

Focus on Core Competencies: Delegate tasks and leverage our support to concentrate on refining core strengths and driving strategic initiatives, facilitating sustained business success.

Savings on Recruitment and Infrastructure cost: Our ready-made solution eliminates extensive recruitment costs and infrastructure setup, allowing efficient resource allocation towards your goals.

Clear and effective communication: Clear communication fosters understanding, minimizing errors, and maximizing efficiency, ensuring a shared vision and cohesive efforts towards objectives.

Easy to Expand team: Seamlessly expand your team to meet evolving project demands, accessing a diverse talent pool for swift scaling without disruption.

Easy to Add or Remove developer: Easily add or remove developers for optimal team sizes, adapting swiftly to project requirements without resource wastage.

Daily progress reports and regular updates: Daily reports offer transparent insights, aligning stakeholders with accomplishments, challenges, and milestones for informed decision-making and on-track project completion.

I-Quall Infoweb provides PHP developers, at extremely reasonable cost. PHP developers, provided by i-Quall Infoweb have wide-ranging knowledge as well as experience of developing critical PHP applications and PHP websites. You can hire a php developer or dedicated PHP developers’ team from i-Quall Infoweb. 

In today’s cutthroat competition, hire PHP developers is the best option in the market, if you want to develop your business without spending too much on infrastructure or hire permanent employees. Through us, you may hire experienced PHP developers from India. You may rent a coder for PHP or hire a PHP designer from us with affordable prices. 

In summary, In the digital age, a strong online presence is vital, demanding a blend of technical and creative skills. The best website developers offer technical excellence, creativity, user-centricity, tailored solutions, and future-proofing. Selecting them involves defining your vision, researching, evaluating portfolios, assessing technical skills, discussing communication, budget, and timeline. Choose experienced technical developers for their proven track record,extensive knowledge, problem-solving, innovation, tailored solutions, collaborative approach, quality assurance, user-centricity, scalability, and efficient communication. Our expertise ensures exceptional results for your project. You can plan for different city also Hire dedicated PHP developers Rajkot, Hire dedicated PHP developers Ahmedabad, Hire dedicated PHP developers Bangalore, Hire dedicated PHP developers Pune, Hire dedicated PHP developers hyderabad.

At i-Quall Infoweb, provide a well-trained, experienced and highly committed hire php web developer to complete your project. Our utmost priority is to fill customers’ requirements with our resources and provide them 100% satisfaction. You can hire a php developers team or full time hire php developer india, according to your requirements.

Visit Us

Contact Us https://www.i-quall.com/contact-us.html

[xceltectechnology]

What Exactly Are Yii2 Helpers Indicate?

Yii2's Helper classes play a pivotal role in simplifying routine coding tasks like string or array manipulation and HTML code generation. They are organized within the Yii helpers namespace as static classes, indicating that they should not be instantiated but rather accessed through static properties and methods.

In the Yii releases, several fundamental Helper classes prove indispensable for developers. Notable among them are:

ArrayHelper

Console

FileHelper

FormatConverter

Html

HtmlPurifier

Imagine (provided by yii2-imagine extension)

Inflector

Json

Markdown

StringHelper

Url

VarDumper

In this tutorial, we'll delve into a deep explanation of Yii2 Helper Libraries, showcasing their thematically targeted coding support modules. Here's a glimpse of some of the Helper classes included with Yii2:

ArrayHelper: Facilitates easier array handling with functions like safe value retrieval, mapping, and merging.

Console: Aids command-line functionality, input processing, and colorful text output.

FileHelper: Expands PHP's fundamental file management capabilities.

FormatConverter: Transforms a variety of formats, with a primary focus on dates.

Html: Dynamically generates commonly used HTML tags.

HtmlPurifier: Improves security by cleaning up user-input text.

Imagine (yii2-imagine plugin): Adds image manipulation capabilities to Imagine.

Inflector: Provides handy string methods for typical transformations.

Json: Encodes and decodes JSON data.

Markdown to HTML: Converts markdown content to HTML.

As a practical demonstration, we'll guide you through creating a helper in Meeting Planner, the focus of our Envato Tuts+ startup series.

In conclusion, our Yii experts, passionate about designing innovative and feature-rich web applications, including scalable enterprise web apps, are at your service. Consider hiring our virtual developers to handle your projects with expertise and creativity. 

If you're looking for a one-stop destination for Yii development services, look no further than XcelTec. As a leading provider in Yii2 Development USA, XcelTec offers a comprehensive range of services to meet your needs. Their expertise covers all aspects of Yii development, ensuring that you receive top-notch solutions tailored to your requirements.

[awsquality]

7 Most Common Web Development Myths

Web Application Development Service is a dynamic field that evolves rapidly, but unfortunately, certain myths and misconceptions persist. These myths can misguide businesses, developers, and clients, leading to poor decision-making and ineffective strategies. In this article, we will debunk some of the most common web development myths, providing you with accurate information to make informed decisions and maximize the potential of your web projects.

Definition and concept of web applications 

A web application, also known as a web app, is a software application that runs on web browsers and is accessed through the internet. Unlike traditional software applications that require installation on individual devices, web applications are hosted on remote servers. They can be accessed from any device with a web browser and internet connection.

Web applications use web technologies such as HTML (Hypertext Markup Language), CSS (Cascading Style Sheets), and JavaScript. They are designed to provide interactive and dynamic functionalities to users, allowing them to perform various tasks, access information, and engage in online transactions.

The concept of web applications revolves around the client-server model. When a user interacts with a web application, the application's client side, which consists of the web browser, sends requests to the server. The server processes these requests, retrieves data from databases or external APIs, performs calculations, and generates responses. These responses are then sent back to the client side, which renders the output on the user's web browser.

Web applications can range from simple forms and calculators to complex enterprise systems, social media platforms, e-commerce websites, and collaborative tools. They can be accessed on different devices, including desktop computers, laptops, smartphones, and tablets, making them highly versatile and widely accessible.

The critical advantage of web applications is their cross-platform compatibility. Since they run on web browsers, users can access them regardless of their operating system (Windows, macOS, Linux, etc.) or device type. This eliminates the need for separate application versions for different platforms and simplifies maintenance and updates.

Web applications also benefit from centralized data storage, as the server manages data and ensures consistency across user sessions. This allows multiple users to access and interact with the same data simultaneously, making web applications ideal for collaborative environments.

Common Myths about Web Development

1.     Web development is a one-time investment 

Many people believe that the work is done once a website is developed and launched. However, this is far from the truth. Web development is an ongoing process that requires regular updates, maintenance, and security patches. Technologies and trends change over time, and your website needs to adapt to remain competitive and provide a seamless user experience. It's crucial to allocate resources for continuous improvement and keep your website updated with the latest features, design elements, and security measures.

2.     Anyone can build a website 

While numerous website builders and templates are available, creating a professional and functional website requires more than just dragging and dropping elements. Web development involves complex coding, optimization, and understanding of user experience principles. A skilled Web and Applications Developer can customize the design, optimize performance, and ensure cross-browser compatibility. They can also implement SEO techniques to improve your website's visibility in search engines. Hiring a Top Web Application Development Company in India will ensure your website reflects your brand identity and delivers a seamless user experience.

3.     Mobile apps are superior to mobile-responsive websites. 

There is a misconception that investing in a mobile app is always the best solution for mobile users. While mobile apps offer specific advantages, such as offline functionality and access to device features, mobile-responsive websites have their benefits. Mobile-responsive design ensures your website adapts to various screen sizes, providing a consistent experience across different devices. It eliminates the need for users to download and install an app, making it more accessible. Moreover, maintaining a single web application is often more cost-effective than developing separate apps for different platforms.

4.     Web development is all about aesthetics 

While aesthetics play a vital role in web design, web development involves much more than just creating an appealing visual interface. Functionality, usability, performance, and security are equally important aspects of web development. A website should look good and deliver a smooth user experience, load quickly, and protect user data. It requires careful planning, coding, and testing to ensure all elements work together seamlessly. Focusing solely on aesthetics without considering the technical aspects can result in a website that looks great but fails to deliver the desired functionality.

5.     SEO is a one-time task 

Search Engine Optimization (SEO) is an ongoing process that requires constant monitoring and optimization. Many people believe optimizing a website for search engines is a one-time task. However, SEO involves various techniques, including keyword research, on-page optimization, content creation, and link building, to improve your website's visibility in search engine results. Search engine algorithms continually evolve, and competition for search rankings is fierce. Regular analysis, adjustments and content updates are necessary to maintain and improve your website's ranking.

6.     The Most Important Thing Is to Start; Functionality Will Come Later

Customers frequently believe that the initial development step can be completed without going into great detail, considering functionality, and compiling a comprehensive list of technical requirements. They can add to or modify something as it is being developed. Additionally, they frequently believe that such adjustments won't impact the project deadlines and budget.

This is untrue. Whether it adds new capability or modifies existing functionality, every modification will take more time to implement and raise the development cost. Customers should therefore be able to know exactly what problems their website is supposed to answer before technical requirements are made for top progressive web app development company. It will be more efficient to take this strategy.

7.     CMS Must Be Developed From Scratch

Making something original rather than utilizing a pre-made solution is a typical practice. This strategy will undoubtedly benefit the developer firm rather than the client. Additionally, a custom-built CMS may frequently lag behind pre-made solutions or even open-source systems in several characteristics.

For nearly any task, there is currently a ready-made solution available. For instance, we created numerous projects using the ASP Net Zero framework, and this strategy allowed us to quickly and cheaply deliver the outcomes demanded by our clients.

Conclusion 

By dispelling these common web development myths, you can approach your web projects with a better understanding of the complexities involved. Remember that web development is an ongoing process requiring expertise, regular maintenance, and adherence to best practices. Investing in professional web development services, understanding the importance of mobile-responsive design, prioritizing functionality over aesthetics, and recognizing the ongoing nature of SEO will help you make informed decisions and achieve successful outcomes for your web projects.

[wamatechblog]

Fundamentals of PHP Application Architecture

Fundamentals of PHP Application Architecture

PHP (Hypertext Preprocessor) has been a cornerstone of web development for decades, enabling developers to build dynamic and interactive web applications. To create robust, scalable, and maintainable PHP applications, it's essential to have a solid understanding of application architecture. In this blog post, we'll delve into the fundamentals of PHP application architecture, exploring key concepts and best practices.

1. Separation of Concerns (SoC):

One of the fundamental principles of PHP application architecture is the separation of concerns. This architectural pattern divides the application into distinct sections that handle specific responsibilities. In the context of PHP, this often translates into separating the presentation layer (HTML, CSS, and front-end interactions), the application logic (PHP code), and the data storage (database interactions). This separation enhances code readability, reusability, and maintainability.

2. Model-View-Controller (MVC):

MVC is a widely used architectural pattern that promotes the separation of an application into three main components: Model, View, and Controller.

Model: The model is responsible for managing the application's data, including data validation, storage, and retrieval from the database. It represents the business logic of the application.

View: The view is responsible for presenting the data to the user. It generates the HTML output and handles user interface components. The view is kept as minimal as possible, focusing on the presentation aspect.

Controller: The controller acts as an intermediary between the model and the view. It receives user input, processes it, interacts with the model to fetch or modify data, and then passes the relevant data to the view for display.

The MVC pattern enhances code organization, making it easier to maintain, extend, and collaborate on projects.

3. Routing:

Routing is a critical aspect of PHP application architecture, especially for web applications that have multiple pages and user interactions. Routing involves mapping URLs to specific controller actions or methods. By defining routes, you can establish clean and user-friendly URLs that correspond to different parts of your application. Popular PHP frameworks like Laravel, Symfony, and Slim offer robust routing mechanisms that simplify the process of handling incoming requests and directing them to the appropriate controllers.

4. Dependency Injection:

Dependency injection is a design pattern that improves code modularity and testability by allowing components to be loosely coupled. Instead of creating dependencies within a class, you inject them from outside. This makes it easier to replace components, mock dependencies for testing, and maintain a more flexible architecture.

5. Database Interaction:

PHP applications often require interaction with databases to store and retrieve data. When architecting the database layer, it's crucial to consider factors such as data integrity, performance, and security. Object-Relational Mapping (ORM) libraries like Doctrine provide tools to manage database interactions while abstracting away the complexities of raw SQL queries.

6. Scalability and Performance:

As your PHP application grows, ensuring scalability and performance becomes essential. Utilize caching mechanisms, optimize database queries, and consider using content delivery networks (CDNs) for serving static assets. Horizontal and vertical scaling strategies should also be considered based on the application's needs.

Conclusion:

Mastering the fundamentals of PHP application architecture empowers developers to build maintainable, scalable, and efficient web applications. By adhering to principles such as separation of concerns, MVC, routing, dependency injection, and efficient database interactions, you can create codebases that are easier to maintain, extend, and collaborate on. Whether you're working on a small project or a large-scale application, these architectural concepts will guide you towards creating successful PHP applications.

[any-other-fandom-blog]

For those who are not as familiar with Python and Google Colab - it's basically a shared notebook that lets you run my code, so you don't need any additional software or anything. I've hopefully commented everything so it should be fairly intuitive to run if you are not as familiar with how this sort of thing works. I've also enabled private outputs, meaning anything you do will not be saved - none of your ao3 data, your graphs, anything will be saved once you exit or even reload the page.

I know there will still be concerns about privacy and entering your data into a 3rd party app - I had concerns too, which is part of why I wanted to code it myself! If you want to know more about what I've done to hopefully maximise security - see below:

The way web scraping (how I get the ao3 data so I can run the stats) works is the code will connect to a web page and retrieve the HTML of the site - so it can get the information/text from the site.

Your Ao3 history page is password-protected however. That means, to access it, it does need a username and password. However, as mentioned, I'm using private outputs so that anything you enter into it cannot be saved or shared in any way. Any information you enter when running the code is deleted after the session is finished! If you are really concerned, you can save the notebook to your own Google Drive to run the code there, or even download the file to your own computer (but if you do that you need an application that can run Python code, such as Anaconda or Visual Studio Code).

A lot of the webscraping code is originally from klipklapper, (originally found here), an extension of teresachenec's wrapped from 2021, updated for the most recent ao3 API (as of 01/01/2024). I have also updated the function that retrieves your Ao3 history page so that the password is not saved after it accesses the page - it's deleted from memory! You can test that yourself by creating a new cell and typing the variable "password" (which is where your password is temporarily stored) or checking with the variable checker. It should come up as "variable not found" meaning it hasn't been stored!

If you really don't want to do it this way, I've also included a way to scrape data from your browser yourself using an extension - no password necessary! As long as you're already logged in (which you can do before you get the extension) you're good to go!

I know my code isn't perfect - and the way Ao3 saves your history (eg. each fic is only stored in your history once) means that the further back you go, the less accurate your stats will be if you've reread fics, and may make comparisons over time less accurate. It also assumes you've read every single work in your history all the way through only once - so word count may be off (I'm hoping the number of works you've not read fully cancels out the rereads in terms of word count).

However, if anyone who is more experienced with Python has any suggestion to optimise the code or improve security, or even ideas for further stats they'd be interested in I'd love to hear it! I can't guarantee that I'll work on it a lot, but any suggestions will be taken into consideration.

Whenever Spotify Wrapped releases, it reminds me of this project I've been thinking about for a while.

And now, The StoryGraph released its version of wrapped for the year (at the actual end of the year, as god intended) and I always think I read a lot less than I used to when I was younger.

Except...I still read on ao3. And I am, at heart, a stats nerd, (see me: nerding out about TSG graphs) so I've always wanted to analyse my ao3 reading history. I've seen people make their own version of ao3 wrapped, but I like having comprehensive stats, so instead of doing any of my actual coding work, I made my own version (with maybe too many stats and graphs according to my horrified non-coding friends I showed this to).

And I figured that there would be some folks out there who are as nerdy about this as I am and would appreciate it as well. So I made the code shareable and hopefully something that anyone can run.

So without further ado, here is my ao3 wrapped:

https://colab.research.google.com/drive/1DikTD0T9YjwPAL-Z3DTD8bdkM5fk_TS9?usp=sharing#scrollTo=cdaded40

Some things that my code can do:

scrape your data from Ao3 and organise it in a nice neat table you can download and keep

allow you to pick a time period

sample a random fic you read from that time period

look at the total number of fics you read, and what percentage of those have been deleted

look at how many works are on your 'Marked for Later' list and see information (top fandom and top characters) about them

show you graphs of the percentage of fics you read with each type of warning, rating, and ship type, as well as your ratio of completed works read

show you the last time you viewed a fic compared with the last time it was updated

the number of fics read over time (sorted by years, months or days depending on whether you are looking at all time, a certain year, or certain month respectively)

analyse the number of words you read and words read over time (similar to fics read over time)

identify your top 20 authors, fandoms, relationships, characters and tags

dynamically choose and plot the changes to your top 10 authors, fandoms, relationships, characters and tags over the time period (by years, months or days depending on the initial overview, similar to , read over time)

see how the rankings of your top 5 have changed from the previous time peroiod, and check the ranking of a specified author/fandom/ship/character/tag in that previous time period

So anyways, have fun!

[gov-info]

EPA Gov Doc/Site: MyEnvironment

The MyEnvironment search application is designed to provide a cross-section of environmental information based on the user's location.

The desired location is keyed in from the EPA Home Page (www.epa.gov) under the section called MyEnvironment, or from the MyEnvironment entry page (www.epa.gov/myenvironment).

The next page to appear contains the results of the search for that geography, e.g., Baltimore, MD. You can use a variety of locational search terms, such as ZIP code, street address, county name, waterbody name, National Park name - or any placename that you might see on a roadmap.

The top of the page contains a banner describing the information available in MyEnvironment. You can Navigate to the pages by using the scroll bar on the left hand side of the page, by clicking on the icons below the banner and then clicking the 'Learn More" button in the banner or by clicking the "More" links in one of the sections. The page includes the following sections with information specific to the geographical location:

MyMaps

Map with the EPA regulated facilities for the area.

More Maps link to MyMaps page which contains an interactive map of the location with the following options:

Add Map Contents - allows addition of program system icons to map

Print Map - provides a window to edit map title and use the browser print function.

Download Data - allows selection of a layer to download and choice of Shapefile, Spreadsheet, GeoRSS or KML output format.

Grab Map - provides options to copy map's URL and paste into an email, or copy map's HTML and paste in website.

The information presented in MyEnvironment about the mapped facilities is both facility and chemical related, but does not provide chemical or safety analysis of the data. Please note that the data retrieved from these databases is both collected and maintained by the individual program system offices.

MyAir

Air Quality Index (AQI) and Historical Air Quality data for the entered location

More Air link to the MyAir page which contains the following:

Historical Air Quality Index

Air Quality Index (AQI) for the entered location

Current Particulate Matter (PM)

Current Ozone

Air Facilities map

Clean Diesel Programs for the entered location

Radon displays a Radon map for the entered location state and a link to Eddies Story

UV Index- This reports the predicted UV light intensity for today

MyWater

ATTAINS Data for the entered location

More Water link to the MyWater page which contains the following:

Water Quality Assessment Map

Water Quality Monitoring Activities - Provides the ability to identify monitoring stations in your neighborhood by the pollutants they measure

Drinking Water Sources - provides EPA Local Drinking Water Provider information and Community Water System information from Safe Drinking Water Information System (SDWIS)

Watersheds - This feature shows your area's watershed and connects you to the EPA Surf Your Watershed Web site which provides a variety of links to citizen-based groups at work in your watershed, water quality data, and more.

New/Expiring Permits - this feature reports new and expiring permits (from EPA's Permit Compliance System database) given to facilities that emit pollutants to water in your neighborhood.

Water conditions for local waterbodies based on EPA Water Quality and Impaired Stream data

Streamflow - provides real-time water data from USGS

MyEnergy

Energy Production - shows Energy Production versus Consumption by Source for your state

More Energy link to the MyEnergy page which contains the following:

Energy Production - shows Energy Production versus Consumption for the entered location

Energy Facilities Map

Home Energy Saver provides link to Home Energy Saver website which empowers homeowners and renters to save money, live better, and help the earth by reducing energy use in their homes.

NREL In My Backyard Tool - provides link to the IMBY tool which estimates the electricity you can produce with a solar photovoltaic (PV) or wind turbine at your home or business.

NREL Biopower - provides link to an interactive geospatial application allowing users to view biomass resources, infrastructure, and other relevant information.

Green Power Locator - Displays a table that summarizes green power products available in your state. These products include utility green pricing programs, retail green power products offered in competitive electricity markets, and renewable energy certificate (REC) products sold separate from electricity.

Fuel Cost Calculator - provides a link to the U.S. Department of Energy fuel cost calculator.

Energy Star Tip of the Day - provides the Energy Star tip of the day and a link to the Energy Star website.

Appliance Rebate Programs - provides a link to Appliance Rebate Programs for your state.

MyHealth

EPA Cancer Risk for Air Toxics Estimates by County (Cancer Risk)

More Health link to the MyHealth page which contains the following:

Map

Cancer Risk - EPA Cancer Risk for Air Toxics Estimates by County (Cancer Risk)

Mortality - Health Resources and Services Administration (HRSA) Infant Mortality Rates by County (Mortality)

Low Birth Weight - HRSA Low Birth Weight Babies Rates by County (LBW)

TOXMAP- Quick Search to explore on-site toxic releases and hazardous waste sites from the EPA's Toxics Release Inventory (TRI) and the Superfund National Priorities List (NPL).

MyLand

Superfund National Priorities List

More Land link to the MyLand page which contains the following:

Map

Brownfields Information links

Superfund Information links

Hazardous Waste Information links

Cleanups in my Community

MyCommunity

The Shout out section allows users to become aware of shout out projects, and could encourage more grass-roots environmental projects.

More Community link to the MyCommunity page which contains the following:

Map

Shout out section allows users to write about local efforts that promote environmental advancement in the community. The Shout out section also allows others to become aware of these projects, and could encourage more grass-roots environmental projects.

Contact Us

Email to send comments back to the EPA developers of this Web site. We can field a wide range of questions that you may have, such as requests for additional resources, comments about the MyEnvironment application, or any other comments.

Report a Violation - a link to the official channel where the public can report spills or violations.

The Cleanup Your Neighborhood link will take you to the EPA Community site where you can find answers to questions about protecting the environment in your community.

Report an Error - You might suspect an error in the placement of a facility pushpin on the map or some other error associated with the facility information. Please feel free to report that error using this official channel for error reports.

Volunteer -link will take you to the SERVE.gov site where you can find volunteer opportunities in your community.

Greenversations - link to the official blog of the U.S. Environmental Protection Agency.

MyEnvironmental Reports

Links for reports analyzing environmental conditions for the entered location

More Environmental Reports link to the MyEnvironmental Reports page which contains links to reports analyzing the environment broken down at state, regional and national level.

Social Networking

Provides links to share the information, experience and your findings within MyEnvironment with others.

Finally, Select a New Location will let you key a new location into the search box, which results in a wholesale refresh of the page for information about air, water, and land pertinent to that newly specified geography.

[captainmdhridoyhossain-blog]

[ad_1] Infinite scroll is a feature that can have a huge impact on the user experience by loading data asynchronously based on scroll position in this video I'm going to show you how to implement infinite scroll and angular with the firestore database but we're going to do it in a way that not only Allows you to scroll down to load content but also to scroll up and load content in the opposite direction this has been a commonly requested feature and it would be used if you were doing something like Facebook Messenger or slack where you load a timeline of messages in Reverse we're going to Accomplish this by creating a generic service in angular and it will not only retrieve the data but also tell us when we've reached the end of a collection and when we are loading new data if you're new to the channel make sure to subscribe and grab the source code for This project from angular firebase comm I'm going to be starting from a brand new angular app and it's only dependency is angular fire so make sure to go to the documentation and follow the setup instructions there then the next step is to create a directive called scrollable This is going to tell us whether or not the user is scrolled to either the top or bottom of the page we're going to do that by monitoring the scroll event on the element itself that'd be that container element and then we're going to omit our own custom event that will Tell us whether or not it's the bottom or top you can create a custom event and angular by using the output decorator and event emitter so our custom event here is named scroll position then I'm going to add element ref to the constructor but I want to warn you that Using element ref for direct Dom access can cause issues in angular with platform server and web worker we can address this issue by wrapping native elements in a try-catch block then provide a fallback such as a load more button when the Don doesn't actually exist first we'll set up a host listener On the element then listen to the scroll event so keep in mind that your host element needs to be something scrollable and we'll set up a function here and put our try-catch block inside of it then we need three values from the native element itself we need scroll top Scroll height and offset height first we need to know if the user has reached the bottom of the element so we can do that by saying top greater than height minus offset minus one extra pixel when that condition is met we our event emitter send out a string Value of bottom four top we can simply see if the scroll top is at zero before we go any further let's make sure this works in an actual component so I'm going to switch over to the app component then I'm going to import observable as well as the pagination Service which we're going to create the next step then I am setting up an event handler here that will just console.log the event from our custom event in the directive all we need to do is set up a div and inside that div will add the scrollable directive and then for the Event we use parentheses with the scroll position event and then we'll run our scroll handler and I'm going to add an extra div in here with some height to it just so we can actually scroll through this parent div if you watch the console to the right you'll see we either get a Bottom or top event once we've reached the bottom or top of the element itself and before we get to firestore let's generate a component called loading spinner then head over to spin kit and choose your favorite spinner and just copy and paste the HTML and CSS into That component before we build this big complex pagination service I want to show you how it's going to be used in the component to paginate in fire story you need to send a new query for each new batch of data that you need the service I'm creating will allow you to Make a query with some basic configuration options and this will populate an observable on the service that we can subscribe

to the first argument to an it is the collection and the second is the field that you want to order by you can order the collection in Reverse and you can also prepend new items to the beginning which is what you would use if you're doing an upward infinite scroll after the initial query we'll listen for events in our scroll handler once we receive the bottom event we can just call the more method from The service and that will populate the next batch of items from firestore so the service we're building will give you infinite scroll with just two lines of code the service will also give us a data variable that's an observable array that we can loop over with the async Pipe so we'll display some information about our boats in the database but the service also has two other variables that are important the first one will tell us once we've reached the end of a collection and that's the done variable so we can listen for that And then say I ran out of boats once we reach the end we have a another observable that will tell us whether or not a new query is loading so we can show a loading spinner for each new query and that also helps us prevent sending multiple unnecessary queries if We take a look in fire store quickly we just have a boat's collection that's in the route and each document has a URL and a year field so we'll be sorting by the year when we look in the app we get the initial loading spinner and then Once we scroll down the loading spinner will reappear and about a second later we'll get some new data loaded now we're finally ready to start building the service we're going to need angularfire store and we're also going to make pretty heavy usage of rxjs behavior subjects next I'm going to set up an Interface that defines the query configuration options so we have a required field of path which is the path to your collection and then we have the field that you want to order by then we'll set default values for limit reverse and prepend prepends the important one that's the one that you Would use if you wanted to have the items at the beginning of the array instead of added to the end of the array next I'm going to set up a few behavior subjects the subjects are all private variables and they have underscores so you can keep track of them easily in the Code done will tell us once we've reached the end of the collection loading will tell us when a query is in process and data is the last batch of information that has been retrieved from firebase then we'll set the query configuration as a variable so we can Keep track of it between queries and that'll be typed to our query config interface then for each of these subjects we're going to set an observable that will be consumed by the component this will keep all of the data changes isolated to the service this part is technically optional but it is Considered a good practice all we need to do is call as observable on the source data then the next step is to add angular firestore to the constructor then we're going to go through a lot of code here so I recommend checking out the main article for detailed Explanations on each of these methods the first one we'll set up is a knit which is going to make an initial query as well as save our query configuration on the service it requires a path to the collection as well as a field to order by and then it has optional defaults Here that you can override by passing them as an object so we'll set a default limit up to and then say reverse false and prepend false now we can use this object to make a reference to the firestore collection we're going to order by the query field if the reverse Property is set to true then we'll go ahead and order it descending otherwise it'll be ascending then we'll go ahead and limit it by whatever set in the query configuration then I have a map and update method that I'm going to show you in just a second here but first I'm Going to show you how we define the observable

data that will actually be used in the front-end component so we'll take our source data and then we'll call the rxjs scan operator on it scan allows us to build a larger array over time if the query options are set to prepend Then we want to take the new value and concatenate it to the beginning of the array and if it's not set then we just want to go ahead and concatenate it to the end scan is a pretty weird operator to learn so I recommend going to rxjs Marbles and checking it out visually now let's take a look at that map and update method it takes the angularfire store collection and then Maps it down to the snapshot that we need and then sends it to our main data source if the collection is already done or loading we Don't want to make the query so we'll just return out of the function but otherwise we'll set the loading state to true and then we'll call collection snapshot changes to paginate a cursor and firestore you have to use the document snapshot so what we're going to Do is map down the array to the data that we want to show on the front end as well as the snapshot you'll see in a second here how we use the snapshot to offset all future queries then after we have this data mapped down we're going To check and see if the prepend option is set then we need to reverse each individual batch to maintain a consistent order going in Reverse there may be a better way to do this but I wasn't able to figure one out for the upward scroll when you're pre New items to a list after we have the values mapped down we'll go ahead and update them in our main data source at this point we can set our loading state to false and we can also check to see if that was an empty array at which point We know we have reached the end of the collection and this is going to be a one-off operation for each new query so we're going to say take one and subscribe this will end your real-time connection with firebase but pagination with real-time data introduces a whole other host of issues and trade-offs that You have to think about it's beyond the scope of this video but please reach out on slack if you want to talk about it now we're ready to set up a method to make secondary queries so first we need to know the cursor that we want to Paginate from if we're a prepending we want the document snapshot from the first item in the last batch otherwise we want the last item in the last batch if the array is empty we want to return null otherwise we will get an error from firestorm the more method is going to Make all subsequent queries first we need to get the cursor for the pagination and then we'll create a firestorm reference it's identical to the initial query except that it uses start after and passing that cursor as an argument this tells firestore where to offset the Query from then once we have that set we can call a map and update and our data source will be updated that was a lot of code to get through in 10 minutes but make sure to check out the full article for detailed explanations on all these Methods my goal is to give you a generic service that can work with any firestore collection and give you infinite scroll either upwards or downwards that's it for firestore infinite scroll with angular if this video helped you please like and subscribe and if you want twice as much content every week consider Becoming a pro member at angular firebase comm you'll get exclusive content a free copy of my book and one on one project consulting thanks for watching and I'll see you next time [Applause] [ad_2] #Infinite #Scroll #Pagination #Firestore For More Interesting Article Visit : https://mycyberbase.com/

[webyildiz]

What is wlwmanifest? wlwmanifest.xml (Windows Live Writer Manifest) is a file used by the Windows Live Writer application, which is a desktop-based blog publishing tool developed by Microsoft. The wlwmanifest.xml file provides information to Windows Live Writer about the blog's capabilities and settings, allowing the application to interact with the blog more effectively. It contains details such as the blog's API endpoint, supported features, and various configuration options. WordPress includes the wlwmanifest.xml file by default to enable compatibility with Windows Live Writer. When the file is present on a WordPress site, Windows Live Writer can detect it and use the information provided to establish a connection with the blog, retrieve blog settings, and facilitate the writing and publishing of posts. While the wlwmanifest.xml file is not typically required for the regular functioning of a WordPress site, removing it may disable Windows Live Writer's ability to connect and interact with the blog. If you don't use Windows Live Writer or have no need for it, removing the wlwmanifest.xml link as mentioned earlier will not have any adverse effects on your website. How To Remove wlwmanifest? If you want to remove the wlwmanifest link from your website, there is two ways: Method 1: Remove wlwmanifest by header.php file: Access your website's files: You will need to have access to your website's files either through FTP (File Transfer Protocol) or a file manager provided by your web hosting service. Locate your WordPress theme's directory: Navigate to the directory where your WordPress theme is installed. Typically, it can be found in the wp-content/themes/ directory. Find the header.php file: Within your theme's directory, look for a file called header.php. This file contains the HTML markup for the header section of your website. Edit the header.php file: Open the header.php file using a text editor or code editor of your choice. Search for the wlwmanifest link: Look for a line of code that resembles the following: htmlCopy code Remove the wlwmanifest line: Delete the entire line of code containing the wlwmanifest link from the header.php file. Save and upload the changes: Save the modified header.php file and upload it back to your website using FTP or the file manager. Method 2: Remove wlwmanifest by functions.php file: To remove the wlwmanifest link from your WordPress theme's functions.php file by following these steps: Access your website's files and locate your theme's functions.php file. Open the functions.php file using a text editor or code editor. Add the following code to the functions.php file: phpCopy code function remove_wlwmanifest_link() remove_action('wp_head', 'wlwmanifest_link'); add_action('wp_head', 'remove_wlwmanifest_link'); Save the changes to the functions.php file. By adding this code, you're hooking into the wp_head action and calling the remove_action function to remove the wlwmanifest link from being included in the HTML output. Save the modified functions.php file and ensure that you have the necessary permissions to modify theme files. After implementing this code, the wlwmanifest link should no longer be present in the HTML output of your website. Remember, there's no point in removing it. It's a static file with information on how Windows Live Writer can talk to WordPress. Discovering that you're running WordPress is usually rather trivial, so nothing much is revealed by this file either. When it comes to securing WP, focus on staying up to date, via automatic patching.

[thestudy24x7]

Beginner's Guide to the Fundamentals of Coding

Coding, also known as programming, is the process of creating computer software, websites, mobile apps, and other digital products by writing instructions in a programming language that a computer can understand. With the rise of technology, learning how to code has become an essential skill for many people. In this article, we will discuss the basics of coding for beginners.

Choose a Programming Language

There are many programming languages to choose from, and each has its unique features and purposes. Some popular programming languages include Python, Java, C++, Ruby, and JavaScript. To start coding, you need to select a programming language that matches your goals and interests. For example, if you want to develop websites, HTML, CSS, and JavaScript are the primary languages to learn.

Learn the Fundamentals

Before you start coding, it is essential to understand the fundamentals of programming. This includes learning programming concepts such as variables, functions, loops, and conditional statements. These concepts are the building blocks of programming and are used in almost every programming language.

Get a Code Editor

A code editor is a software application that is used to write, test, and debug code. There are many free and paid code editors available, such as Visual Studio Code, Atom, and Sublime Text. Code editors come with features such as code highlighting, auto-completion, and error highlighting, which make coding easier and more efficient.

Practice, Practice, Practice

Like acquiring any other skill, learning to code involves practice. Write simple programmes at first, then progress to more complicated ones. Several online sources, like Codecademy, Udemy, and Study24x7, provide tutorials and courses to assist beginners in learning to code.

Debugging

The process of debugging involves locating and repairing flaws in your code. Every programmer needs this ability, but it takes practise to master. Debugging entails looking over your code to identify the error's cause. Once you have located the issue, you may update your code to resolve it.

Collaboration and Learning from Others

Collaboration and learning from others are important aspects of coding. Joining online coding communities, attending coding events, and participating in coding challenges are great ways to learn from others and improve your coding skills. You can also work on coding projects with others, which can help you learn new coding techniques and approaches.

Basic programming concepts are fundamental ideas and principles that underpin all software development. Here are some of the most essential concepts:

Variables: A variable is a named storage location in a program's memory where data can be stored and retrieved later. Variables can hold different types of data, including numbers, text, and Boolean values.

Control structures: Control structures are constructs in programming languages that enable developers to control the flow of program execution. The most common control structures are loops (for, while, do-while), conditional statements (if-else, switch-case), and functions.

Data types: A data type defines the kind of data that a variable can hold, such as integers, floating-point numbers, characters, and strings.

Operators: Operators are symbols that represent specific operations to be performed on data. Examples of operators include arithmetic operators (+, -, *, /), comparison operators (==, !=, >, <), and logical operators (&&, ||, !).

Functions: A function is a block of code that performs a specific task. Functions can be called multiple times from different parts of a program, making code more modular and reusable.

Input/output: Input/output (I/O) refers to the process of exchanging data between a program and the user or the system. Common I/O operations include reading from and writing to files, displaying output on the screen, and accepting input from the user.

Debugging: Debugging is the process of finding and fixing errors in a program's code. Debugging tools and techniques include print statements, breakpoints, and step-through debugging.

These basic programming concepts are essential building blocks that are used in almost all programming languages and applications. Understanding the basics of coding for beginners is critical for anyone who wants to learn programming and build software.

In conclusion, coding is a valuable skill that can open up many opportunities in today's digital world. To get started with coding, choose a programming language, learn the fundamentals, get a code editor, practice, practice, practice, debug your code, and collaborate and learn from others. With patience and dedication, anyone can learn to code and become a successful programmer.

[educationtech]

What is CodeIgniter? How Does PHP CI Framework Works? - Arya College

What do you know about CodeIgniter

What is CodeIgniter

Private Collages of Engineering in Jaipur Rajasthan have many courses like CodeIgniter it is an Application Development Framework - a toolkit - for people who build websites using PHP.

CodeIgniter is open source.

Was built by EllisLab.

Also it is a PHP framework, easy to learn,and  suitable for beginners

It needs no extra configuration also you do not need to use the command line.

It is extremely light.

It is suitable for small or big projects a;sp all in all, you just need to know some PHP to develop the applications you want.

Each Controller triggers by a certain URI.

CodeIgniter Feature

Runs on PHP 4

Light Weight

Fast

Uses M-V-C

Clean URLs

Packs a Punch

Extensible  

Friendly Community of Users

Thoroughly Documented

Best Engineering Collages of Jaipur Rajasthan says Frameworks are abstract, reusable platforms where we can develop our applications, alsoThey help in writing reusable and better-constructed code and their main characteristic is the MVC (Model – View – Control) architecture pattern.

MVC architecture representation of data from the logic of the application.

The Model work is to accessing the database or executing other operations.

The View work is to what the visitors of the web application see.

The Controller is work is to handling the incoming requests, validating input and showing the right view.

Advantages of CodeIgniter

Helpers and libraries

Support PHP 4 or PHP

Exceptional performance weight

Very fast

Clear document

Disadvantages of C,odeIgnite

ORM is not available

Modules

Auth Module

Ajax

Flow of CodeIgniter

User enters the URI of the project then CI gets the request and checks the routes file to find any matches, and If a match is found so it triggers the right Controller and function also the Controller calls the right Model to retrieve / create the data needed,, After the data is retrieved the Controller finds the right View and returns it and View and data is represented to the user

Controller is Triggered

It should be shown to the visitor and then it returns that View with the corresponding data.

This is defined by routes also Routes is a PHP configuration file that maps each URL of our web project to a Controller and a certain function.

Code of CI

Libraries :-

Benchmarking Class

Calendar Class

Cart Class

Config Class

Database Class

Email Class

Encryption Class

File Uploading Class

Form Validation Class

FTP Class

HTML Table Class

Image Manipulation Class, Input and Security Class

Loader Class

Language Class

Output Class

Pagination Class

Session Class

Trackback Class

Template Parser Class

Typography Class

Unit Testing Class

URI Class

User Agent Class

XML-RPC Class

Zip Encoding Class

Helpers

Inflector Helper

Language Helper

Number Helper

Path Helper

Security Helper

Smiley Helper

String Helper

Text Helper

Typography Helper

URL Helper

XML Help

Overview CI framework

CodeIgniter URLs

URI Routing

Controllers

Models

Views

Auto-loading Resources

Security

Auto-loading Resources and libraries, helpers, and plugins to be initialized automatically every time the system runs.

Managing your Applications:- to have multiple sets of applications that share a single CodeIgniter installation, FrontEnd and BackEnd

Security

URI Security

GET, POST, and COOKIE Data

XSS Filtering

Validate the data

Escape all data before database insertion

Directory structure of CI

+System

+Application

-Codeigniter

-Helper

-Libraries

-Database

-Language

Conclusion

Top Collages of Engineering in Jaipur Rajasthan says CodeIgniter supports helpers, which is essentially a collection of functions in a category, for example the helper for working with files (read / write) is “file” and libraries as form validation also all of these can come in handy and help a lot in developing your projects and It supports both traditional structures as Active Records patterns, also someone could set up CodeIgniter to run with Doctrine (ORM), a topic that will be presented in another tutorial.

[aryacollegejp]

Do you know about CodeIgniter

What do you know about CodeIgniter

What is CodeIgniter

Private Collages of Engineering in Jaipur Rajasthan have many courses like CodeIgniter it is an Application Development Framework - a toolkit - for people who build websites using PHP. 

CodeIgniter is open source. 

Was built by EllisLab. 

Also it is a PHP framework, easy to learn,and  suitable for beginners

It needs no extra configuration also you do not need to use the command line. 

It is extremely light.

It is suitable for small or big projects a;sp all in all, you just need to know some PHP to develop the applications you want.

Each Controller triggers by a certain URI.

CodeIgniter Feature 

Runs on PHP 4 

Light Weight 

Fast 

Uses M-V-C 

Clean URLs 

Packs a Punch 

Extensible  

Friendly Community of Users 

Thoroughly Documented

Best Engineering Collages of Jaipur Rajasthan says Frameworks are abstract, reusable platforms where we can develop our applications, alsoThey help in writing reusable and better-constructed code and their main characteristic is the MVC (Model – View – Control) architecture pattern.

MVC architecture representation of data from the logic of the application.

The Model work is to accessing the database or executing other operations.

The View work is to what the visitors of the web application see. 

The Controller is work is to handling the incoming requests, validating input and showing the right view. 

Advantages of CodeIgniter

Helpers and libraries

Support PHP 4 or PHP

Exceptional performance weight

Very fast

Clear document

Disadvantages of C,odeIgnite 

ORM is not available 

Modules 

Auth Module 

Ajax

Flow of CodeIgniter

User enters the URI of the project then CI gets the request and checks the routes file to find any matches, and If a match is found so it triggers the right Controller and function also the Controller calls the right Model to retrieve / create the data needed,, After the data is retrieved the Controller finds the right View and returns it and View and data is represented to the user

Controller is Triggered

It should be shown to the visitor and then it returns that View with the corresponding data.

This is defined by routes also Routes is a PHP configuration file that maps each URL of our web project to a Controller and a certain function.

Code of CI

Libraries :-

Benchmarking Class 

Calendar Class 

Cart Class 

Config Class 

Database Class 

Email Class 

Encryption Class 

File Uploading Class 

Form Validation Class 

FTP Class 

HTML Table Class 

Image Manipulation Class, Input and Security Class 

Loader Class 

Language Class 

Output Class 

Pagination Class 

Session Class 

Trackback Class 

Template Parser Class 

Typography Class 

Unit Testing Class 

URI Class 

User Agent Class 

XML-RPC Class 

Zip Encoding Class

Helpers

Inflector Helper

Language Helper 

Number Helper 

Path Helper 

Security Helper 

Smiley Helper 

String Helper 

Text Helper 

Typography Helper 

URL Helper 

XML Help

Overview CI framework 

CodeIgniter URLs 

URI Routing 

Controllers 

Models 

Views 

Auto-loading Resources 

Security 

Auto-loading Resources and libraries, helpers, and plugins to be initialized automatically every time the system runs.

Managing your Applications:- to have multiple sets of applications that share a single CodeIgniter installation, FrontEnd and BackEnd

Security 

URI Security 

GET, POST, and COOKIE Data 

XSS Filtering 

Validate the data 

Escape all data before database insertion

Directory structure of CI

+System 

 +Application

-Codeigniter 

-Helper 

-Libraries 

-Database 

-Language

Conclusion

Top Collages of Engineering in Jaipur Rajasthan says CodeIgniter supports helpers, which is essentially a collection of functions in a category, for example the helper for working with files (read / write) is “file” and libraries as form validation also all of these can come in handy and help a lot in developing your projects and It supports both traditional structures as Active Records patterns, also someone could set up CodeIgniter to run with Doctrine (ORM), a topic that will be presented in another tutorial.