teleren/devto huggingface dataset:
Handling asynchronous errors in JavaScript
Published: 2023-12-19 13:43:35

A; Callbacks: This is one of the oldest ways to handle asynchronous operations in JavaScript. The convention is to make the first parameter of the callback an error object. If there is no error, the first parameter will be null.

```
fs.readFile('somefile.txt', (err, data) => {
    if (err) {
        // Handle the error
    } else {
        // Handle the data
    }
});
```

B; Promises with .catch(): Promises are a common way to handle asynchronous operations in JavaScript. If an error occurs in a promise, it can be caught with .catch().

```

someAsyncFunction()
    .then(result => {
        // Handle the result
    })
    .catch(error => {
        // Handle the error
    });
```

C; Async/Await with try/catch: Async/await is a more modern way to handle asynchronous operations. It allows you to write asynchronous code as if it were synchronous. However, to catch errors, you need to use a try/catch block.

```
async function someFunction() {
    try {
        const result = await someAsyncFunction();
        // Handle the result
    } catch (error) {
        // Handle the error
    }
}
```

D; Event listeners: If you’re working with EventEmitters (like in Node.js), you can listen for an ‘error’ event.

```
const emitter = getSomeEventEmitter();
emitter.on('error', (error) => {
    // Handle the error
});
```
Finally; Remember, unhandled promise rejections are deprecated. In future versions of Node.js, unhandled promise rejections will terminate the process. So, always handle errors in promises.
I want to build a site that sells sports shoes
Published: 2023-12-19 13:27:26

I really want to build my own shoe website, but I don’t know how to match and use it. Is there any good front-end design to help me complete it? The main thing is to build the website in an all-round way, including the matching of keywords for some products and SEO, similar to the following of these stations

Retro **_[Air Jordan 4 Midnight Navy](https://topreplicas.cc/retro-air-jordan-4-midnight-navy-dh6927-140/)_** DH6927-140


If you want to find a partner to build it together, you don’t have to worry about the cost.
White Label Crypto Exchange Solution | A Comapct Guide
Tags: cryptocurrency, whitelabel, webdev, beginners
Published: 2023-12-19 12:51:51

Cryptocurrency exchange platforms are raking in millions of dollars. Nowadays, this is one of the most profitable and reliable businesses in high demand. If you are planning to start your own crypto exchange business, then a [white label crypto exchange](https://blockchain.oodles.io/turnkey-cryptocurrency-exchange-software/) solution or software is probably the best solution for you.

## So, What can a White label Crypto Exchange Solution Do for You?
A custom white-label solution can help business people to rebrand the ready-made crypto exchange site with their name, design, and unique features. White label crypto exchange solutions can turn your brand appealing to others.

The primary issue that many startups and businesses have with the entire process of developing a bitcoin exchange platform is the enormous costs involved. When you choose a white label solution, you spend less money and get a much better solution for your customized needs.

White Label Crypto exchange solution is a product or a ready-made solution that a crypto exchange solution provider(Company) offers. Now, you can customize this product in the way you want.

## Why choose a white label solution? Here are the benefits of white label solution

**Save Time and Get Fast Deployment**
Developing a crypto exchange platform from scratch takes a long time. As a result, you will not be able to market your product on time. You can lose your investors. Thus, choose a ready-made white label exchange solution to get a fast deployment of your exchange business.

**Save Money**
Spending a lot on the initial development of a [cryptocurrency exchange platform](https://blockchain.oodles.io/turnkey-cryptocurrency-exchange-software/) is a bad idea because it is also available at a cheaper price. So, there is no point in investing in the internal creation of technology. Therefore, a white-label solution is a pre-packed ready to go solution.

**Easy to Brand and Market**
For your custom needs, you can design the product with the unique features you want in your exchange platform. With a customizable white label solution, you can easily brand and market your business. This makes you stand out in the crypto exchange market.

Essentially, if you want to stay ahead in the cryptocurrency exchange business with special features of your own, a white-label solution is the right choice. You can opt for our white-label crypto exchange solution — Oodles Scaffold. With customizable features and the ability to add unique functionalities, our solution ensures you stay ahead in this competitive space. Connect with our [crypto developers](https://blockchain.oodles.io/about-us/) for a demo and explore how our solution can cater to your specific requirements and set you apart in the market.
Crafting an Open-Source Alternative to Twilio: Unveiling the Significance
Tags: webdev, code, cloud, javascript
Published: 2023-12-19 12:51:37

Consequently, I had the chance to conduct interviews with numerous CTOs from global companies and engage in discussions with various investors intrigued by the concept of an open-source Programmable Telecommunications stack.

Through these interviews, it became evident that we needed an innovative approach to developing a cloud-based stack for Programmable Telecommunications.

The question arises: Why did we need CPaaS in the first place? Crafting an application that leverages the existing [Telecom network](https://dev.to/rupeshtiwari/introduction-to-point-of-presence-and-network-access-point-5k4) has always been challenging, particularly compared to building web-based applications. This difficulty stems from requiring a specific skill set that is both scarce and expensive to acquire. Let's be honest; delving into numerous RFCs to program a phone call is something nobody desires.

With the advent of the API era, along with [UCaaS](https://getvoip.com/blog/what-is-ucaas/) and CPaaS providers, it became a logical choice to use these providers. They allowed for deploying solutions within weeks instead of spending months on a simple use case.

However, traditional CPaaS solutions have their drawbacks. While they offer a quick go-to-market solution, they can be expensive and lack customization options. Some companies find themselves paying for features they don't need, while others face limitations due to privacy concerns and local regulations, especially in industries like healthcare.

Fonoster's primary innovation lies in developing a highly portable, [cloud-based ](https://dev.to/duplocloud/11-cloud-automation-tools-and-platforms-that-streamline-development-8g4)Programmable Telecommunications stack. This stack enables businesses to utilize APIs for tasks such as dialing, answering calls, establishing video sessions, and sending SMS, without concerns about what happens in the background.

The approach taken by Fonoster involves leveraging existing open-source solutions whenever possible and building proprietary solutions when necessary. These are integrated into a cohesive set of APIs resembling a traditional CPaaS.

For instance, initiating a Voice Application can be as simple as writing a JavaScript code, and making a call to the telephone network can be achieved using the SDK with a straightforward script.

To address diverse use cases, Fonoster offers Cloud Functions integration with OpenFaaS. This allows users to easily create and deploy applications, such as a reminders application, through simple steps and code.

Looking forward, it's recommended to explore "The essentials of building Voice Applications with Fonoster" to understand the available Programmable Voice features within Project Fonoster.
Day 11 - 30 Days learn Web Dev
Tags: javascript, programming, beginners
Published: 2023-12-19 12:45:34



**18 Dec 2023**

**Finished:**
[2721. Execute Asynchronous Functions in Parallel](https://leetcode.com/problems/execute-asynchronous-functions-in-parallel/)


**What I learn:**
- How to emulate Promise.all()
- For arrays, the length property returns the highest numeric index plus one.
```javascript
let arr = [];
arr[1] = 1;
arr.length;  // return 2
```
What is Selenium? Why do we use selenium for Automation?
Published: 2023-12-19 12:44:47

Selenium is a open-source tool that helps to automate web browsers for testing. It is free to use. It's used to test web applications like email programs and shopping carts across different browsers and platforms.
Selenium includes a suite of software that developers can use to automate web applications, including- 
    
1. Selenium IDE
2. Selenium Remote Control
3. Selenium Grid
4. Selenium WebDriver

## 1. Selenium IDE-

Selenium IDE is part of the Selenium Test Suite and is easy to use, even for beginners. It doesn't require programming logic to write test scripts. Instead, users can record their interactions with the browser to create test cases.

a. IDE = Integrated Development Environment
b. It is just a web-browser extension
c. You need to download and install the extension for that particular web browser and start working with it.
d. It can automate as well as record the entire automation process
e. People generally do not use it rather they use the Selenium scripts for the same.

## 2. Selenium Remote Control
a. It is outdated technology 
Do not used these days
b. It has been replaced by WebDriver, which is far more better and easy to use
c. It has been replaced by Selenium WebDriver

## 3. Selenium Grid
a. It is used to run parallel tests on multiple devices running different browsers at different geographical locations
b. We can run multiple test-cases simultaneously at one moment of time
c. It used the Hub-Node architecture or Master-Slave architecture

## 4. Selenium WebDriver

Selenium WebDriver is a web framework that allows users to run cross-browser tests. It's an open-source collection of APIs that automates web application testing. Selenium WebDriver helps testers ensure that a website works as intended on different browsers.

## Use Of Selenium for Automation Testing-

**1. Scalability-**

Selenium allows for parallel test execution, which can significantly reduce the overall testing time.

**2. Flexibility-**

Selenium can help developers and testers make quick changes to the code, reducing duplication and improving maintainability.
 
3. It does support multiple browsers like Firefox, Chrome, Safari, Internet Explorer etc.

4. Selenium allows users to create test scripts in different programming languages, including Java, Python, C#, Ruby, and more.

5. It is free to use and open-source tool.
How to import CSV file to the Database
Tags: elixir, ecto, postgres, tutorial
Published: 2023-12-19 12:35:02

How to import CSV data file to the database and populate the table.

Imagine you have this migration in your application with the following columns:
```elixir
create table(:users) do
  add :first_name, :string, null: false
  add :last_name, :string, null: false
  add :username, :string, null: false
  add :email, :string, null: false
end
```

And this would be the CSV file:
```csv
First Name,Last Name,Username,Email
John,Doe,john_doe,john@doe.com
Jane,Doe,jane_doe,jane@doe.com
...
```

And how can I import my CSV file to the users' table on the database?

```shell
~$ psql -U user -d database <<USERS
COPY users(first_name, last_name, username, email) FROM '/path/to/users.csv' DELIMITER ',' CSV HEADER;
USERS
```

After finishing, you will receive an output with __`COPY 2`__ the number of copies in your table.
Win55 - Win55 55K - Link Truy Cập Đăng Ký Nhận【55K】
Published: 2023-12-19 12:18:16

Social Links:

https://win55k.win/
https://win55k.win/dang-ky-win55/
https://win55k.win/tai-app-win55/
https://win55k.win/nap-tien-win55/
https://win55k.win/rut-tien-win55/
https://win55k.win/lien-he-win55/
https://win55k.win/chinh-sach-bao-mat-win5
https://win55k.win/live-casino-win55/
https://win55k.win/the-thao-win55/
https://win55k.win/ban-ca-win55/
https://win55k.win/xo-so-win55/
https://win55k.win/game-bai/
https://www.facebook.com/win55kwin/
https://twitter.com/win55kwin
https://www.youtube.com/channel/UC3fG8snCdKClNy1A2cQosRA
https://scholar.google.com/citations?hl=vi&user=ql0yntgAAAAJ
https://www.pinterest.com/win55kwin/
https://500px.com/p/win55kwin
https://social.msdn.microsoft.com/Profile/win55kwin
https://social.technet.microsoft.com/Profile/win55kwin
https://www.skillshare.com/en/user/win55kwin
https://soundcloud.com/win55kwin
Two WordPress plugins to improve the server performance object caching
Published: 2023-12-19 12:16:07

## Object Cache 4 everyone

Improve your server performance using Memcached for object caching or improve your server performance using disk support for object caching.

https://wordpress.org/plugins/object-cache-4-everyone/

## Query Monitor

Query Monitor is the developer tools panel for WordPress. It enables debugging of database queries, PHP errors, hooks and actions, block editor blocks, enqueued scripts and stylesheets, HTTP API calls, and more.

It includes some advanced features such as debugging of Ajax calls, REST API calls, user capability checks, and full support for block themes and full site editing. It includes the ability to narrow down much of its output by plugin or theme, allowing you to quickly determine poorly performing plugins, themes, or functions.

Query Monitor focuses heavily on presenting its information in a useful manner, for example by showing aggregate database queries grouped by the plugins, themes, or functions that are responsible for them. It adds an admin toolbar menu showing an overview of the current page, with complete debugging information shown in panels once you select a menu item.

## Results

![WordPress Object Cache plugin results: 97.3% hit rate (2,253,918 hits, 63,292 misses)](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/drex55ncdffh4npob1c4.png)
Top 15 Web Design Trends 2024
Tags: web, design, development, website
Published: 2023-12-19 12:10:04

As we navigate the ever-evolving seas of the digital landscape, the year 2024 beckons with a treasure trove of innovative web design trends that promise to reshape the way we experience the online world. Imagine a canvas where custom illustrations weave unique narratives, where 3D elements invite you to explore new dimensions, and micro-interactions turn each click into a delightful moment. Join us on a journey through the latest trends that not only transform websites but redefine the very essence of online interaction.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1wp0btuxz8qh4xgjp6rb.jpg)

## Web Design Trends 2024

1. Custom Illustrations
2. Interactive 3D Elements
3. Micro-Interactions
4. CSS Grid
5. White Space
6. Dark Mode
7. Accessibility
8. Neomorphic Design
9. Organic Shapes
10. Fresh Color
11. Augmented Reality (AR) Integration
12. Nostalgia
13. Artificial Intelligence (AI)
14. Minimalism
15. Complex Gradients

**1) Custom Illustrations**
Break free from the mundane with bespoke illustrations that tell your unique story.
Illustrations breathe life into your brand, creating an authentic connection with your audience.
Say goodbye to stock images and embrace a visual language that is distinctly yours.

**2) Interactive 3D Elements**
Elevate user engagement by adding depth and dimension with interactive 3D elements.
From product showcases to immersive storytelling, 3D elements bring a dynamic flair to your website.
The future is not just flat; it’s interactive, engaging, and ready to captivate your audience.

**3) Micro-Interactions**
It’s the small details that make a big impact. Micro-interactions add a touch of magic to user experience.
From subtle hover effects to animated buttons, these delightful interactions enhance usability and leave a lasting impression.
User engagement is no longer just about clicks; it’s about creating memorable moments.

**4) CSS Grid**
Say hello to a responsive design revolution with CSS Grid.
Grid layouts provide flexibility and control, allowing designers to craft visually stunning and functional websites.
Whether it’s a portfolio showcase or an e-commerce platform, CSS Grid is the key to a seamless, adaptive layout.

**5) White Space**
Embrace the power of simplicity with strategic white space.
White space isn’t just empty; it’s a design choice that enhances readability, highlights key elements, and brings elegance to your layout.
In the cluttered digital space, white space is your secret weapon for creating a clean and focused design.

Explore rest Web Design trends in detail here: https://bit.ly/3TxHvSW
Extract GitHub OpenGraph Images for Card Previews
Tags: github, opengraph
Published: 2024-01-08 04:14:23

---
title: Extract GitHub OpenGraph Images for Card Previews
published: true
date: 2023-12-19 11:51:48 UTC
tags: GitHub, OpenGraph
canonical_url: https://chi.miantiao.me/post/github-og-image/
---

Previously, when sharing GitHub on my blog, I always used [GitHub Repository Card](https://gh-card.dev/) for sharing, but it doesn't have good support for Chinese and doesn't support line breaks.

[![ccbikai/cloudflare-worker-image - GitHub](https://gh-card.dev/repos/ccbikai/cloudflare-worker-image.svg?fullname=)](https://github.com/ccbikai/cloudflare-worker-image)

Originally, I planned to create my own using [@vercel/og](https://vercel.com/docs/functions/edge-functions/og-image-generation), but I accidentally discovered that GitHub provides comprehensive and beautiful Open Graph images on Twitter. So, I wrote a script to extract and use them for blog previews.

## Demo

![nasa/fprime - GitHub](https://github.html.zone/nasa/fprime)

![A framework for building Open Graph images](https://static.miantiao.me/share/9ZxTs8/RZHfnD.png)

In addition to repositories, GitHub's Open Graph also supports previews for Issue, Pull Request, Discussion, and Commit modules.

## Usage

**Modify `.com` to `.html.zone` on any GitHub page**.

For example, [https://github.com/vercel/next.js](https://github.com/vercel/next.js) => [https://github.html.zone/vercel/next.js](https://github.html.zone/vercel/next.js).

### Previews

#### Repo

![Repo](https://github.html.zone/vercel/next.js)

#### Issue

![Issue](https://github.html.zone/vuejs/core/issues/9862)

#### Pull Request

![Pull Request](https://github.html.zone/lobehub/lobe-chat/pull/529)

#### Discussion

![Discussion](https://github.html.zone/lobehub/lobe-chat/discussions/551)

#### Commit

![Commit](https://github.html.zone/vercel/next.js/commit/a65fb162989fd00ca21534947538b8dbb6bf7f86)

## Source Code

The code has been shared on GitHub for those interested to explore.

[![ccbikai/github-og-image - GitHub](https://github.html.zone/ccbikai/github-og-image)](https://github.com/ccbikai/github-og-image)

 ![stat](https://c.statcounter.com/9823304/0/92a1d06c/1/)
66. Working on the testing doc (Day 64)
Published: 2023-12-19 11:49:36

Today, I dedicated some time to working on Assignment 3. Although I intended to invest more effort, I found myself distracted by various other tasks.

Specifically, I focused on two key areas:

- Fine-tuning my Bash Script.

- Drafting a testing document aimed at comprehensively capturing the functionality of all aspects of the application. While my initial goal was to complete this today, I've had to reschedule it for Thursday due to prior work commitments tomorrow. This is what my testing document looks like:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zlvl8h4qixy6xqkc36hi.png)

Reflecting on my overall sentiment regarding the assignment:

I find satisfaction in the completion and smooth functionality of my application.

However, I do harbor a degree of anxiety regarding the assignment rubric's criteria. I'm uncertain if I've covered all the necessary aspects within the given timeframe. Yet, I believe I've addressed the majority of the requirements.

Comparatively, I feel my application might be less complex than those attempted by my peers. Nevertheless, I acknowledge its current state and accept that it's the best representation of my work. I remain curious about the outcome and how it will be received.

In summary, that wraps up today's progress on Tuesday's tasks. Looking forward to the upcoming challenges and the finalization of this assignment.
Carpet Cleaning SEO - Mastering the Digital Landscape introduction
Tags: seo, seoservices
Published: 2023-12-19 11:43:11


[SEO Carpet cleaning Services](https://indeedseo.com/seo-for-carpet-cleaners), an ancient trade, has seamlessly adapted to the digital age through the integration of strong SEO strategies. This all-in-one guide is your key to uncovering the intricacies of effective SEO, taking your carpet cleaning enterprise to new heights of visibility, and beating the competition.

**Decoding SEO for Carpet Cleaners**
In the digital environment, search engine optimization (SEO) emerges as a linchpin that can propel your carpet cleaning business to prominence. SEO, at its core, is a strategic approach to search engine results pages (SERPs), promoting an enhanced online presence, increasing brand awareness, and achieving higher rankings in major search engines. are included

**Possible uses of carpet cleaning keywords**
Effective [carpet cleaning SEO](https://indeedseo.com/seo-for-carpet-cleaners) is rooted in the strategic use of keywords. By seamlessly integrating relevant keywords into your content, you can drive targeted traffic to your website, potentially translating into an increase in leads and conversions. Keywords act as a bridge, connecting potential customers with your services when they need them.

**Providing exceptional value to customers**
The foundation of any winning SEO campaign is an unwavering commitment to providing real value to potential customers. By providing relevant and insightful information, you not only build trust but also set the stage for converting prospects into loyal, paying customers. Aligning your content with your audience's needs and interests is key to building lasting connections.

Our battle-tested carpet cleaner SEO service process
With our carefully designed process, begin a journey to leverage the power of SEO to attract relevant traffic and land a stream of new customers.