teleren/devto huggingface dataset:
How To Refreshing Web Page With JS
Tags: webdev, javascript, beginners, programming
Published: 2024-06-10 10:09:57

## Introduction
Refreshing web page is simple like just press `F5` or `Ctrl + R` but what if you want to refresh the page automatically after certain time? You can use JavaScript to do that. In this article, I will show you how to refresh the web page automatically using JavaScript. 

## Prerequisites
- Basic knowledge of HTML, CSS, and JavaScript
- Text editor like Visual Studio Code
- Web browser like Google Chrome

## Refreshing Web Page With JavaScript
To refresh the web page automatically using JavaScript, you can use `location.reload()` method. This method reloads the current document. Here is the code to refresh the web page after 5 seconds. 

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Refresh Web Page</title>
</head>
<body>
    <h1>Refresh Web Page</h1>
    <p>This web page will refresh after 5 seconds.</p>

    <script>
        setTimeout(() => {
            location.reload();
        }, 5000);
    </script>
</body>
</html>
```

In the code above, I use `setTimeout()` method to call `location.reload()` method after 5 seconds. The `setTimeout()` method takes two arguments, a function and a time in milliseconds. The function will be called after the time has passed.  

## Refreshing Web Page With JQuery
If you are using JQuery, you can use `location.reload()` method as well. Here is the code to refresh the web page after 5 seconds using JQuery. 

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Refresh Web Page</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
    <h1>Refresh Web Page</h1>
    <p>This web page will refresh after 5 seconds.</p>

    <script>
        $(document).ready(function() {
            setTimeout(() => {
                location.reload();
            }, 5000);
        });
    </script>
</body>

</html>
```

## Refresh using trigger button
You can also add a button to refresh the web page. Here is the code to refresh the web page when the button is clicked.  

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Refresh Web Page</title>
</head>
<body>
    <h1>Refresh Web Page</h1>
    <p>This web page will refresh after 5 seconds.</p>

    <button onclick="location.reload()">Refresh</button>
</body>
</html>
```

## Conclusion
Refreshing web page automatically using JavaScript is simple. You can use `location.reload()` method to refresh the web page. You can also use `setTimeout()` method to refresh the web page after certain time. I hope you find this article helpful.

Happy coding! 🚀

## Reference
- [Online database design](https://dynobird.com)
JavaScript Design Patterns - Behavioral - Iterator
Tags: javascript, programming, beginners
Published: 2024-06-10 10:05:00

The **iterator** pattern allows us access to the elements in a collection without exposing its underlying representation.

In the example below, we will create a simple iterator with an array of elements. We can iterate through all the elements using the methods **next()** and **hasNext()**.

```ts
class Iterator {
  constructor(el) {
    this.index = 0;
    this.elements = el;
  }

  next() {
    return this.elements[this.index++];
  }

  hasNext() {
    return this.index < this.elements.length;
  }
}
```

A complete example is here 👉 https://stackblitz.com/edit/vitejs-vite-2txuqu?file=iterator.js

🚀 Using this pattern when we want to access an object’s content collections without knowing how it is internally represented.

---

I hope you found it helpful. Thanks for reading. 🙏

Let's get connected! You can find me on:
- **Medium:** https://medium.com/@nhannguyendevjs/
- **Dev**: https://dev.to/nhannguyendevjs/
- **Hashnode**: https://nhannguyen.hashnode.dev/
- **Linkedin:** https://www.linkedin.com/in/nhannguyendevjs/
- **X (formerly Twitter)**: https://twitter.com/nhannguyendevjs/
- **Buy Me a Coffee:** https://www.buymeacoffee.com/nhannguyendevjs
iOS Interview Questions and Answers
Tags: ios, coding, programming, learning
Published: 2024-06-10 10:04:47

Are you a fresher preparing for an [iOS developer interview](https://www.onlineinterviewquestions.com/ios-interview-questions)? If so, you’re likely eager to showcase your knowledge and skills in iOS development. To help you ace your interview, we’ve compiled a list of the top 7 iOS interview questions and answers.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/70plgiwh1hf9e4lcmp99.png)

Q1. What is ARC in iOS?
Ans: ARC stands for Automatic Reference Counting. It’s a memory management technique used in iOS to automatically manage memory by keeping track of objects’ references.

Q2. What are the key features of Swift programming language?
Ans: Swift is known for its safety, speed, modern syntax, optionals, type inference, and memory management using Automatic Reference Counting (ARC).

Q3. Explain the difference between strong, weak, and unowned references in Swift.
Ans: Strong references keep objects alive as long as there’s at least one strong reference to them. Weak references don’t keep objects alive and automatically become nil when the object they reference is deallocated. Unowned references are similar to weak references but don’t require unwrapping and are used when it’s guaranteed that the referenced object won’t be deallocated before the reference is accessed.

Q4. What is the difference between a delegate and a notification in iOS?
Ans: A delegate is a design pattern used for one-to-one communication between objects, where one object acts on behalf of another object. Notifications, on the other hand, are used for one-to-many communication, allowing an object to broadcast messages to multiple observers without knowing who they are.

Q5. What is a closure in Swift?
Ans: A closure is a self-contained block of functionality that can be passed around and used in your code. It captures references to variables and constants from the surrounding context in which it’s defined.

Q6. Explain the concept of optional chaining in Swift.
Ans: Optional chaining is a process for querying and calling properties, methods, and subscripts on an optional that might currently be nil. If the optional contains a value, the property, method, or subscript call succeeds; if the optional is nil, the call returns nil.

Q7. What are generics in Swift?
Ans: Generics are a way to make your code more flexible and reusable by writing code that doesn’t depend on specific types. They allow you to write functions and types that can work with any type.
Aditya City Grace | Aditya City Grace Ghaziabad | Aditya City Grace NH 24 Ghaziabad
Tags: realestate, realestateinvestment, realestateagent, adityacitygrace
Published: 2024-06-10 10:03:21

Aditya City Grace in Ghaziabad, where [**luxurious 2 & 3 BHK apartments**](https://adityacitygrace.site/) start at 54 Lakhs. These homes blend modern design with elegance and comfort, perfect for young professionals, growing families, and investors. Positioned centrally in Ghaziabad, Aditya City Grace provides easy connectivity to major highways, shopping hubs, and educational facilities.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ri3snpavcmfnilsjfc36.png)
Indulge in a range of premium amenities, including a state-of-the-art gym, serene parks, and round-the-clock security, all crafted to ensure a safe and healthy lifestyle. The beautifully landscaped environment provides a tranquil retreat, ideal for unwinding after a busy day. Join a vibrant community and create lasting memories with your neighbors at Aditya City Grace.
Contact us: 8595808895
What is Wagepoint Payroll Software ?
Tags: finance, payroll, accounting, techtalks
Published: 2024-06-10 10:02:36

Ever heard of Wagepoint payroll software? If not, then today is
the day you do. It is a software for small and medium sized businesses to streamline their payroll process. The software has an ability to streamline processes in such a way that it saves valuable time. The business owner does not have to give too much efforts to do calculations or data entry and has to just focus on expanding his business.

It has many features such as user friendliness, simple setup,
reliable customer support and direct deposit. It calculates
the salaries, deductions, taxed on its own and is good at 
managing tax filings, state and local payroll tax calculation.

[Wagepoint payroll pricing structure](https://accountico.ca/wagepoint-payroll-software-review-pricing-all-you-need-to-know/):
1. Base Fee
2. Total no. of Employees
3. Any additional features one chooses
4. Comprehensive End year reporting
5. Customer service and support
Leveraging Dynamic Styles in React Components with Styled Components
Tags: react, styledcomponents, webdev, javascript
Published: 2024-06-10 10:00:34

In modern web development, adaptability and customization play key roles in creating dynamic user experiences. At [itselftools.com](https://itselftools.com), with our extensive experience in building over 30 projects using Next.js and Firebase, we have consistently pushed the boundaries of what web applications can achieve. One technique particularly useful for increasing the dynamism of your web components is the use of function-generated styled components. This article explores a snippet that demonstrates this concept with clarity and precision.

### Dissecting the Code Snippet:

```javascript
const dynamicStyle = (color) => StyleSheet`div {\n  background-color: ${color};\n  padding: 20px;\n  border-radius: 8px;\n}`
```

This JavaScript function, `dynamicStyle`, leverages tagged template literals—a feature of ES6—to define and return a styled component dynamically. Here's a breakdown of how it works:

1. **Function Definition**: `dynamicStyle` is an arrow function that takes `color` as an argument. This allows the function to be reused with different colors, making the component it styles highly customizable.
2. **StyleSheet Usage**: The function uses `StyleSheet`, which typically represents a styled component in libraries like Styled-Components or Emotion. These libraries allow developers to write their CSS in JavaScript, boosting composability and reusability.
3. **Dynamic CSS Properties**: Inside the template literal, CSS properties are defined with JavaScript expressions embedded within `${}`. In this example, `color` is dynamically applied to the `background-color` property of a `div`. Additional styling like `padding` and `border-radius` are also specified, demonstrating the ease with which developers can modify component styles dynamically.

This approach not only simplifies the styling process but also enhances the flexibility and maintenance of your codebase. By defining styles dynamically, you can cater to different user preferences, themes, or branding guidelines without cluttering your code with conditional style rules.

### Conclusion:

Utilizing dynamic styling in web applications offers a powerful way to enhance user interface customization and interactivity. For developers looking to see this type of coding in action, exploring our implementation in projects such as [Adjectives Finder](https://adjectives-for.com), [Word Search Tools](https://find-words.com), and [High-Quality Screen Recording](https://online-screen-recorder.com) can provide valuable insights. These applications showcase how dynamic styling can effectively improve user experience and design aesthetics.
How to disable Rails Form's `.field_with_errors`
Tags: rails, ruby, webdev
Published: 2024-06-10 10:00:00

This article was originally published on [Rails Designer](https://railsdesigner.com/disable-field-with-errors/).

---

This is a quick one! 🚤💨

Rails is known for great defaults and conventions. But there's one feature that I disable in all my Rails apps.

That feature is `field_with_errors` (coming from [ActiveModelInstanceTag](https://api.rubyonrails.org/classes/ActionView/Helpers/ActiveModelInstanceTag.html#method-i-error_wrapping)). If there are any form validation errors for a field, this method wraps it with a `div.field_with_errors`. In turn you can write CSS like this to style it accordingly:

```css
.field_with_errors input,
.field_with_errors textarea,
.field_with_errors select {
  background-color: #ffcccc;
}
```

But the extra div, more often than not, messes up the flow of the (carefully) crafted HTML and thus breaks the layout.

More importantly I prefer to write my own components to highlight form validation errors as it allows me to style my field- and label-inputs exactly how I want.

Fortunately disabling the `field_with_errors` div is easy!

Create a new initializer and add this:

```ruby
# config/initializers/field_with_errors.rb
ActionView::Base.field_error_proc = proc do |html_tag, instance|
  html_tag.html_safe
end
```

It customizes Rails' form field error handling by setting a proc that returns the original HTML tag unmodified and safe for HTML rendering.

All invalid form fields are now returned as-is, instead of being wrapped in the `field_with_errors` div. 🏆
Sapphire Las Vegas
Published: 2024-06-10 09:59:49

Sapphire Las Vegas is renowned for providing a top-tier experience in the heart of Sin City. This iconic [las vegas gentlemen's club](https://sapphirelasvegas.com/) is known for its opulent setting, incredible performances, and outstanding service. Whether you're celebrating a special occasion or just looking for a night of fun, Sapphire is the place to be.
0 downtime is a myth with deployment slots
Tags: azure, paas, cloud, devops
Published: 2024-06-10 09:54:43


Are you using Azure App service deployment slots? Is it really zero downtime?

The answer might vary, but my response is both “yes” and “no.” It’s “yes” if you have a [SPA (Single Page Application)](https://developer.mozilla.org/en-US/docs/Glossary/SPA). However, if you’re dealing with a complex project that has interdependencies among multiple web applications or services, the answer is “no.”

In my case, we had multiple web services with interdependencies. Our product was a single instance for each customer. Additionally, there were post-deployment jobs to run. Azure App Service takes more time to perform a swap over direct deployment, and the warm-up time for slots can vary. The Infrastructure as Code (IaC) also becomes increasingly complex.

Our product consisted of around five core components, and we had a database along with custom configurations (not AppSettings or connection strings) that couldn’t be moved to App Service due to legacy support. To update the components, we first had to update the database, which would temporarily bring down the service endpoint. Unfortunately, all workarounds failed to achieve true “zero downtime,” and the custom configurations introduced additional downtimes.

we were using the staged slots for around 2+ years and we realized the following on slots based deployments

 - Overhead and Management:
While deployment slots provide flexibility, managing multiple slots    can introduce additional overhead. Each slot may require separate DNS    records, network rules, SSL certificates, and other configurations.
If you choose separate app services instead of slots, you avoid this    overhead but lose some benefits like seamless swapping and    prewarming.

 - Complexity in Pipelines:
 When using deployment slots in DevOps pipelines, be cautious about swapping across environments. Improper use can lead to unexpected results.
It’s essential to understand the behavior of slots during swaps and ensure proper testing to avoid downtime and longer deployments3.
 - Increased Cost\Time\IaC complexity.
  Stage slots demand unique resources apart from prod but that will end up in increasing cost and deployment time.

Considering all these challenges, we decided not to use slots. As a result, we observed a drastic increase in deployment speed by 4X, and we reduced costs by almost 1.2X. Instead, we now create a new test infrastructure, test the product, and deploy directly to production
🚀 Unlock the Power of Back End Development with Node.js 🌐
Published: 2024-06-10 09:54:01

" Hey today let's Dive into Back-end development with Node.js 🙃



Then #COdeWith #KOToka


Looking to build fast, efficient, and scalable server-side applications? Node.js is your go-to solution! 🚀



 With its non-blocking, event-driven architecture, Node.js can handle multiple requests simultaneously, making it perfect for real-time applications, APIs, and dynamic web apps.



Imagine using JavaScript on both the front end and back end for a seamless, unified development experience. 



🌟 Whether you're an experienced developer or just starting, Node.js offers the tools and flexibility you need to take your projects to the next level.



Dive into Node.js and transform your back end development skills! 💻✨ 



#NodeJS #BackendDevelopment #JavaScript #WebDevelopment #Coding
How to add function and filter on an array and lamda function.
Tags: php, array, functionandfilter, lamdafunction
Published: 2024-06-10 09:51:59



```
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            display: grid;
            place-items: center;
            font-family: sans-serif;
            height: 100px; 
            margin: 20px; 
        }
    </style>
</head>
<body>
    <h1>You have read in dark mode </h1>

    <?php
    
    function filterBooksByAuthor($books, $author) {
        $filteredBooks = array_filter($books, function($book) use ($author) {
            return $book['author'] == $author;
        });
        return $filteredBooks;
    }

    $books = [
        ['name' => 'Web', 'author' => 'Philip K. Dick', 'purchaseUrl' => 'http://example.com'],
        ['name' => 'OOP', 'author' => 'Andy Weir', 'purchaseUrl' => 'http://example.com'],
        ['name' => 'Database', 'author' => 'Jeffery', 'purchaseUrl' => 'http://example.com']
    ];

    $filteredBooks = filterBooksByAuthor($books, 'Andy Weir');
    ?>

    <!-- Display filtered books -->
    <ul>
        <?php foreach ($filteredBooks as $book) : ?>
            <li><?= $book['name']; ?> - by <?= $book['author'] ?></li>
        <?php endforeach; ?>
    </ul>
    <?php
    $sum = function($a, $b) {
        return $a + $b;
    };

   
    echo "Result of lambda function: " . $sum(3, 4);
    ?>
</body>
</html>
```
🚨 Registration Closes Tonight! 🚨
Published: 2024-06-10 09:51:15

## Registration for Eastern India's Largest Hackathon closes at 11:59:59 PM IST tonight! ⏰

📌 REGISTER NOW - https://lu.ma/0nruupo3?tk=4y8KSV

This is your last shot to show your skills in tech and snag incredible prizes! 🏆

## Why Join Hack4Bengal 3.0?
**Inclusive Participation:**
Open to all skill levels, with dedicated workshops for beginners.

**Team Building:**
Form teams of 2-4 members or join as a solo hacker and find your team on Discord.

**Comprehensive Support:**
Enjoy free participation, meals, beverages, and sleeping arrangements.
Real-world Challenges: Address pressing societal and environmental issues through technology.

Ditch the wait and pull the trigger!
@hack4bengal
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/m1dwhuk1b2zfnagp1quw.jpg)
Checkcup - Browserless Puppetter Project Build.
Tags: webdev, javascript, beginners, programming
Published: 2024-06-10 09:48:16

## Checkcup

Checkcup is a website monitoring tool that fetches the status of websites along with screenshots and active status. It is built using Next.js for the frontend and Puppeteer with Browserless in the backend.

## Features

- Fetches website status including HTTP status code, response time, and active status.
- Captures screenshots of websites for visual verification.
- Supports monitoring multiple websites simultaneously.


## Demo
{% embed https://github.com/priyanshuverma-dev/quine-checkcup %}

## Live Preview

You can view a live preview of Checkcup [here](https://quine-checkcup.vercel.app/).

## Installation

1. Clone the repository:

   ```
   git clone https://github.com/priyanshuverma-dev/quine-checkcup.git
   ```

2. Install dependencies:

   ```
   cd checkcup
   bun install
   ```

3. Configure environment variables:

   Create a `.env` file in the root directory and provide the following variables:

   ```
   DATABASE_URL=your_database_url
   NEXT_PUBLIC_URL=server_url
   ```

   Replace `your_database_url` with the URL of your MongoDB database.
   Replace `server_url` with the URL of your server.

4. Install dependencies for the `server` directory:

   ```
   cd server
   bun install
   ```

5. Configure environment variables for the `server` directory:

   Create a `.env` file in the `server` directory and provide the following variables:

   ```
   BROWSERLESS_URL=browserless_url
   ```

   Replace `browserless_url` with the URL of your Browserless instance.

## Usage

1. Start the server:

   ```
   cd server
   bun run dev
   ```

2. Generate Prisma client:

   ```
   bunx prisma generate
   ```

3. Start the development server:

   ```
   bun run dev
   ```

4. Open your browser and navigate to `http://localhost:3000`.

5. Enter the URLs of the websites you want to monitor and click on the "Check Status" button.

6. View the status, response time, and screenshot of each website.

## Deployment

To deploy Checkcup to production, follow these steps:

1. Build the Next.js app:

   ```
   bun run build
   ```

2. Start the production server:

   ```
   bun start
   ```

3. Visit the deployed URL to access Checkcup.

4. To deploy the server, follow the same steps as above in server directory.

## Technologies Used

- Next.js
- Puppeteer
- Browserless

## Contributing

Contributions are welcome! Please feel free to submit issues and pull requests.

## License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
How to list all available tables in PostgreSQL?
Tags: postgres, database, tutorial
Published: 2024-06-10 09:43:20

Checking the list of database tables is a common task that might be performed multiple times daily, and major database management systems provide built-in methods for this purpose.

PostgreSQL offers several methods that will illustrate using the SQL Shell (psql) command-line tool and dbForge Studio for PostgreSQL, an advanced PostgreSQL IDE that covers all aspects of database management.

#Different ways to list tables in PostgreSQL#

Continue reading to learn about:

* How to connect to a PostgreSQL database using psql
* How to list all tables using psql
* How to obtain detailed information about tables
* How to list tables using the pg_catalog schema
* How to view and manage tables in PostgreSQL GUI tools

https://www.devart.com/dbforge/postgresql/studio/postgres-list-all-tables.html
Empower Your Network with SmartSQ
Published: 2024-06-10 09:35:32

With SmartSQ you will get:

- Auto Geo-coding
- Line of Sight Checks
- Integrated Feasibility
- Capacity Check
- Comprehensive Analytics & Reports

From Lead Generation to Revenue Generation – Seamlessly

Explore Various Feasibility Categories:
[FTTx Feasibility
](https://leptonsoftware.com/smartsq/)Enterprise Wireline Feasibility
Enterprise Wireless Feasibility
On-the-spot/Ultrafast Feasibility
Integrated Feasibility

Want to Learn More? Connect with Us!