teleren/devto huggingface dataset:
Cost to develop website like Udemy
Published: 2020-07-13 10:48:05

Udemy is a marketplace for e-learning and teaching online. With the help of udemy students can learn and master new skills by learning from a huge library of over 55,000 courses taught by different expert instructors.

So having these much amount of potential market many wants to develop this kind of website. Let me tell you it’s not an easy task to get all features in first phase of website development. One needs to do continuous development and need to add new feature to enrich the user experience.

Here is the least of basic functionality one need, based on each page when he wants to launch a website like Udemy:

Home Page:

This Page will have Logo of the company. (Logo will be provided from client)

The development of page will have below details:

1. 3 full screen banners
2. Top Courses List
3. Big button for browsing different courses
4. Sign up or Registration button
5. Log In Option in Header Part with tutor registration and sign up for students: => Student or Trainee Registration: Name, e-mail, Password => Tutor Registration: Name, e-mail, Password
About Us Page:

In the development process of About Us Page will have details of the company.

This Page will have subpages which are mentioned below:

1. Mission and Vision
2. Team
3. Career
4. Press

Training Page:
Development of training page in which details for training service for any business will be given.

Affiliates Page:
Development of Affiliates page will be done in which details for affiliate program will be given.

Blog Page:
Development of blog page which will have list of different blogs.

Support Page:
Development of support page in which details for support will be given.

Tutor Dashboard:

Tutor Dashboard will have below details which needs to be developed:

1. Course Creation panel in which basic information of course and 2. summary of course will be added
3. Images
4. Promo video
5. Test Video
6. Add Lectures
7.Add Quiz
8. Ad d Project or Exercise
9. Price and Coupons
10. Manage Instructors
11. Student message
12. Analytics of Student Satisfaction
13. Manage student => Project submitted who applied for certification => Assessments of student who applied for certification => Provide Certificate

Student Dashboard:

Student Dashboard will have below details which needs to be developed:

1. List of registered courses
2. Download attachments or documents
3. Open Discussion
4. Project/Exercise submission
5. Take a quiz
6. Check Assessments
7. Apply for Certificate if tutor provides
8. Account setting

Admin Side Features:

1. Menu Hierarchy Management
2. Banner Management
3. Content Article Management
4. User Management
5. Tutor Management
6. Category Management
7. Courses Management
8. Static Page Management
9. Blog Management
10. Contact Us
11. Payment Management

Vibidsoft has expertise to develop this kind of website in the timeline of 2-3 months. The cost will totally depend on the features you are selecting. So don’t wait if you want to design and develop a clone of Udemy mail us on inquiry@vibidsoft.com.
Video calls don't have to be hard - www.theTalk.at
Tags: node, webrtc, react, javascript
Published: 2020-07-13 10:33:38

Yes yes, I know what you're thinking.
Another video calling app!?

Introducing... www.theTalk.at

Hear me out - there are no login requirements, works on your phone browser and its dead simple!

* Just create a link - _theTalk.at/fancyRoomName_
* share it
* start video chatting!

Very much in beta and built in four days, I'd love to hear any feedback!
All about arrays in javascript
Tags: javascript, webdev, beginners, react
Published: 2020-07-13 08:56:47

For beginners this article will be good lesson and for experts it would a good revision so that you don't google things again. After reading this article you won't encounter any problem related to javascript arrays.Let's consider there is an array, 
`array = ['html', 'css', 'javascript']`

## Accessing array
1. `array[1]` will give you the element at index 1 which is 'css'.

2. `array[array.length - 1]` will give you the last element if you don't know the lengt of the array.

3. `array.indexOf('css')` will return the index of element 'css' which is 1.

## Adding elements

1. `array.push('react')` will add 'react' at the end of the array.You can add as many items as you want, just separate them with a comma.

2. `array.unshift('react')` will add 'react' at the start of the array (i.e. at index = 0).You can add as many items as you want, just separate them with a comma.

3. `array.splice(2, 0, 'react')` will delete 0 items starting from index 2 and then add 'react' at index 2.

## Removing elements

1. `array.pop()` removes the last element from array.

2. `array.shift()` removes the first element from array.

3. `array.splice(1, 2)` will remove 2 elements starting from index 1.

4. `array.slice(0, 1)` will return a copy of portion of array (i.e. ['html', 'css'] in this case).

**NOTE**: `delete array[0]` will make the item at index 0 as `undefined`. So better use `pop()` and `shift()` instead.

## Looping through arrays

1. `array.forEach(item => console.log(item))` will loop through every element of the array.

2. `array.map()` is similar to `array.forEach()` only difference being, map creates a new array and then perform opertations on it whereas forEach performs only the original array.

3. `array.filter(item => item.length > 3)` will return another array with elements whose length is greater than 3.
The filter() method creates a new array with all elements that pass the test implemented by the provided function.
Better Site Speed: 4 Outside-the-Box Ideas

Tags: css, javascript, html, websitespeed
Published: 2020-07-13 10:25:36

Did you know that nearly [53% of website visitors] (https://www.thinkwithgoogle.com/marketing-resources/data-measurement/mobile-page-speed-new-industry-benchmarks/) leave a website when it takes more than 3 seconds for the page to load? If your website takes longer than this time to load then it should be a cause of concern for you as you might be losing out on a lot of traffic due to this reason. 

To ensure that you don’t lose out on your website traffic, you should improve your site speed. Before you move to optimize your website speed, you should check your site speed first. For this, you can use a tool like [Google PageSpeed Insights] (https://developers.google.com/speed/pagespeed/insights/). Now that you know your site speed, let’s move on to how you can optimize it. 

##1. Image Optimization##
Images can take up a lot of data and this can slow down your page loading speed. So, if you’re using any PNG images, you should consider replacing them with SVG images, which occupy less space. In fact, they can save nearly 60% of the data. 

##2. Use HTML##
JavaScript is widely used to create webpages nowadays. However, due to its ease of use, it’s usage has increased drastically. As a result, it added to many spots where it’s not necessary. Due to this, your website loading time can increase as the JavaScript execution time can be pretty long. On the other hand, HTML is lighter and can save time in loading your website. You can use any SEO tool like [Ahrefs or SEMrush] (https://loudgrowth.com/seo/tools/ahrefs-vs-semrush/)

##3. Use CSS##
Just the way HTML can help in reducing your page loading time, CSS can help you reduce it too. You should consider using the same image multiple times if you need its variations to appear across the page. That way, it’ll only have to be downloaded once. You can do the same for different elements on your page and save your loading time. 

##4. Improve Your Networking##
Your network is also extremely important when it comes to page loading speed. The faster your network, the better will your page loading speed be. You can find [hosting companies] (https://theblogging.co/best-wordpress-hosting/) that offer super routing options that can help in improving your page loading speed as your visitors can download your data seamlessly without much effort. 

##Final Thoughts##
The page speed of your website is an essential aspect of your website’s SEO strategy. If your page loads slowly, your [website may lose out on ranking] (https://seoconsultation.co/recover-google-penalty/) well in the SERPs. To ensure that your website does rank high, you must improve it. Follow the steps mentioned above to improve your page loading speed and improve your SEO. 

What are the other ways through which you can improve your page speed? Let me know in the comments.
git add . vs git add -A
Tags: linux, git, beginners
Published: 2020-07-13 10:25:09

Both of these will stage all files, including new files (which `git commit -a` misses) and deleted files.

The difference is that `git add -A` also stages files in higher directories that still belong to the same git repository. Here's an example:

```
/my-repo
  .git/
  subfolder/
    nestedfile.txt
  rootfile.txt
```

If your current working directory is `/my-repo`, and that's the root of this git repo (thus the `.git/` folder), these two commands will do the same thing.  
But if you `rm rootfile.txt`, then `cd subfolder`, `git add .` will not stage the change that `../rootfile.txt` has been deleted, because `git add .` only affects the current directory and subdirectories. `git add -A`, on the other hand, will stage this change.
How To Create A GitHub Profile README
Tags: github, git
Published: 2020-07-13 09:27:47

Hello everyone!
GitHub recently released a feature that allows users to create a profile-level README to display prominently on their GitHub profile.
![Alt Text](https://dev-to-uploads.s3.amazonaws.com/i/s6dc1vhqmmdx3n5nm8vo.JPG)
𝑰 𝒉𝒂𝒗𝒆 𝒂𝒍𝒓𝒆𝒂𝒅𝒚 𝒄𝒓𝒆𝒂𝒕𝒆𝒅 𝒕𝒉𝒆 𝒓𝒆𝒑𝒐 𝒉𝒆𝒏𝒄𝒆 𝒊𝒕𝒔 𝒔𝒉𝒐𝒘𝒊𝒏𝒈 " 𝑹𝒆𝒑𝒐 𝒂𝒍𝒓𝒆𝒂𝒅𝒚 𝒆𝒙𝒊𝒔𝒕𝒔"
How do I create a profile README?
Steps to begin:
1. The profile README is created by creating a new repository that's the same name as your username. For example, my GitHub username is akanksha-raghav so I created a new repository with the name akanksha-raghav.
2. Create a README.md file inside the repo with text, images, emojis, etc.
![Alt Text](https://dev-to-uploads.s3.amazonaws.com/i/3bxl2p2ic7k2gjgz7uai.JPG)
For exploring Markdown Syntax: https://guides.github.com/pdfs/markdown-cheatsheet-online.pdf
3. Commit your new README and yes you are done😀!
Note: At the time of this writing, in order to access the profile README feature, the letter-casing must match your GitHub username.
Congratulations!! you have created a solid README for your Github.
Designing the itinerary of the Adventure.
Tags: json, terasology, opensource
Published: 2020-07-13 09:22:06

Hey there,
Here is the summary of 1st week of JULY 2020.

# Goal:
The **goal** of this week was to define the integration of JSON Maps with the design structure.

# Brief:
The static design is ready now. So, I decided to work on the core logic of this project. The intent behind this project is to make the new visitors familiar with the project and community. Everything on the frontend part is dependent on the logic under the hood. To make the journey meaningful, I worked on the PathMap module this week. Also, I added sass support to the project during this week. 

# Tasks Completed:
✔️ Added Sass as a style sheet language.
✔️ add central data extraction in the App component.
✔️ fixed typing effect error.
✔️ fixed styling issues.

---------------------------------------------------------
# Links:
Pull Requests - 
- https://github.com/MovingBlocks/AdventureSite/pull/8
- https://github.com/MovingBlocks/AdventureSite/pull/9

---------------------------------------------------------
> #### Post Type: Update.

Regards,
Prathamesh (TheShubham99)


### `$ Ctrl+z`

> ### `program exited with exit code 0 (0x0)`
Road to Genius: advanced #48
Tags: javascript, beginners, computerscience, codepen
Published: 2020-07-13 09:19:03

Each day I solve several coding challenges and puzzles from Codr's ranked mode. The goal is to reach genius rank, along the way I explain how I solve them. You do not need any programming background to get started, and you will learn a ton of new and interesting things as you go.

```JS
function RPN(tokens) {
  const stack = [];
  for (let index = 0; index < tokens.length; index++) {
    const token = tokens[index];
    if (!Number.isNaN(Number(token))) {
      stack.push(token);
    } else {
      const a = Number(stack.pop());
      const b = Number(stack.pop());
      if (token === '*') {
        stack.push(b * a);
      } else if (token === '/') {
        stack.push(b / a);
      } else if (token === '+') {
        stack.push(b + a);
      } else if (token === '-') {
        stack.push(b - a);
      }
    }
  }
  return stack.pop();
}

let arr = ['1', '6', '9', '/', '+']
let A = RPN(arr);
A = Math.floor(A)

// A = ? (number)
```

We meet our old friend Reverse Polish Notation (RPN) again. We haven't analyzed it the previous time, since we have solve it completely we'll have to do it this time.

The input that RPN takes is:
```JS
arr = ['1', '6', '9', '/', '+']
```

The function starts with declaring an empty array `stack`. Then it iterates over all input tokens using a for-loop. Let's go over the process using pseudo-code:
```
stack = []

token = 1 --> is number --> push
stack = [1]

token = 6 --> is number --> push
stack = [1, 6]

token = 9 --> is number --> push
stack = [1, 6, 9]

token = / --> non number
a = 9
b = 6
push(6 / 9)
stack = [1, 0.66667]

token = + --> non number
a = 0.66667
b = 1
push(0.66667 + 1)
stack = [1.666667]

return stack.pop() --> 1.666667

A = Math.floor(1.66667) = 1
```

Well that wasn't so hard, was it? :)
![coding challenge answer](https://dev-to-uploads.s3.amazonaws.com/i/37xmn089yexo08crcs5f.png)

We finally made it to the next rank "superior", I'm excited for the next challenge!
![coding challenge extra](https://dev-to-uploads.s3.amazonaws.com/i/g8u7j4wxmrmutqwg66v5.png)

By solving these challenges you train yourself to be a better programmer. You'll learn newer and better ways of analyzing, debugging and improving code. As a result you'll be more productive and valuable in business. Get started and become a certified Codr today at https://nevolin.be/codr/
Why is python so popular?
Tags: python
Published: 2020-06-16 14:04:20

In short, the answer to this problem is that python is not just a computer programming language for geeks.

A wide range of people from *different areas use it* including business developers, data analysts, software testers, database managers, mathematicians, researchers etc. 

Another fact is that it is very easy to learn and use and is extremely related to English.

## Learn Python?

Do you want to learn the Python Programming Language?
Get free course and ebook: https://gumroad.com/l/uPjuk

<a href="https://gumroad.com/l/uPjuk">![free ebook](https://dev-to-uploads.s3.amazonaws.com/i/ue5x8u43e2xwkajzuxoc.png)</a>

Python is a general purpose programming language, so you can make anything with it.

**Features of python:** 
  * Object oriented
  * Strong exception handling
  * Automatic memory management
  * Easy syntax
  * Indentation based
  * Forgiving in nature
  * Dynamic
  * Strong data types

It's a great first language to learn, the syntax is simple and it's easy to get started. 

For example, take a look at hello world

    print("Hello world")

That's it! 

A function?

    def add(a,b):
        return a+b

If you don't know Python yet, it's a good skill to learn. You can make all kind of things with it, like a wallpaper downloader <a href="https://github.com/arturdryomov/google-wallpaper-downloaders">[1]</a><a href="https://github.com/arturdryomov/google-wallpaper-downloaders">[2]</a><a href="https://gitpress.io/u/1282/bing_download">[3]</a>, <a href="https://pythonpyqt.com/">desktop apps with python</a> and a lot more!
Upgrading pgAdmin 4 For PostgreSQL 12 (Windows 10)
Tags: postgres, pgadmin4, tutorials, beginners
Published: 2020-07-13 09:08:00

Hello Fellow Codenewbies 👋,

## Prologue
We just installed PostgreSQL 12 on our Windows 10.
Now we can use pgAdmin 4 – the graphical tool with the installer package for managing and developing our database.

## Starting pgAdmin 4
1. Click the start menu
2. Go to PostgreSQL
3. Select and click pgAdmin4

It then asks us to create a master password.
The master password is required to unlock saved passwords and reconnect to the database server(s). 
Create the password, and then we're good to go.

## Upgrading pgAdmin 4 

I got the case where the PostgreSQL 12 installer comes with pgAdmin 4 version *4.21* while the latest version is ***4.23***. 

![pgAdmin 4 version message](https://dev-to-uploads.s3.amazonaws.com/i/83kmr0urcwzp3oo61kvf.jpg)

In this post, we will upgrade it to the latest version.

## Installation Steps
* Go to uninstall PostgreSQL. 

    We can find the uninstall application by going to the directory where PostgreSQL 12 is installed on our machine.

![PostgreSQL directory in local storage](https://dev-to-uploads.s3.amazonaws.com/i/ne9jgfiw1wtsue8yd0jb.jpg)

* Select uninstall "individual components" and select **only** the pgAdmin 4 to uninstall the older version.

![Uninstall Dialog](https://dev-to-uploads.s3.amazonaws.com/i/dgpxo158zzds4n3xete5.jpg)

* Download the latest version of pgAdmin 4 [here](https://www.pgadmin.org/download/pgadmin-4-windows/) and start the installation.
  
    It will first prompt us to a dialog where we can select the installation folder.
By default, it will offer us to install pgAdmin 4 in C:\Program Files (x86).

![Installation Dialog](https://dev-to-uploads.s3.amazonaws.com/i/7997zrklgvpzfmngymg5.jpg)

We want to install it in the same directory as our PostgreSQL 12 to replace the older version.

* Browse and select the directory where PostgreSQL 12 is installed
* Select the version subfolder to install pgAdmin 4

![Installation Dialog](https://dev-to-uploads.s3.amazonaws.com/i/oecw18h9pdk2agc3ivy8.jpg)

* Click next to create pgAdmin 4 shortcuts in Start Menu

![Installation Dialog](https://dev-to-uploads.s3.amazonaws.com/i/qwlq3egs2cygcmlt1ibk.jpg)

* Select the PostgreSQL 12 folder, then click OK and install

![Installation Dialog](https://dev-to-uploads.s3.amazonaws.com/i/ugjku19vb1j588e52pgw.jpg)

And there, now we have the latest version of pgAdmin 4 😃

---

Thank you for reading!
Last, you can find me on [Twitter](https://twitter.com/@AdiatiAyu). Let's connect! 😊
Show current path on Termux
Published: 2020-07-13 09:07:23

---
title: Show current path on Termux
published: true
description: 
tags: 
//cover_image: https://direct_url_to_image.jpg
---

Type:

```bash
cd
```

Type:

```bash
cd ../usr/etc
```

Edit:

```bash
nano bash.bashrc
```

Add this in end of line:

```bash
PS1="\w :"
```

Save.
How to add new command in Termux?
Published: 2020-07-13 09:03:01

---
title: How to add new command in Termux?
published: true
description: 
tags: 
//cover_image: https://direct_url_to_image.jpg
---

Type this:

```bash
cd
```

Then:

```bash
cd ../usr/bin
```

Now, create new command. Example:

```bash
touch download
```

Give root access:

```bash
chmod +x download
```

Edit:

```bash
nano download
```

If you don't have `nano`, install it:

```bash
pkg install nano
```

After edit, save.
How to scale integration testing?
Tags: integrationtesting, testing, softwaretesting
Published: 2020-07-13 09:02:17

In integration situations, each bit of code a designer submits triggers a form cycle. The outline of stages gets obscured, and everything appears to happen together. What does mix testing mean in this specific situation, and where does it fit into the procedure? 

Run combination tests until something falls flat 

Figure out what should be included or adjusted 

Drill down into unit testing 

Return to incorporation testing once your unit tests pass 

Rehash the procedure until your tests pass end to end.


<b>Procedure to scale integration testing</b>

The accompanying accepted procedures should help you as you continued looking for a smoother constant coordination process. 

1. Do <a href="https://www.testingxperts.com/blog/integration-testing">integration testing</a> before unit testing 

For the vast majority of us, this thought is unreasonable. We've been trained that the later you find a deformity in the improvement cycle, the more costly it is to fix. We attempt to get all the subtleties consummated before proceeding onward to the "huge things," like combination testing. 

2. Try not to test business rationale with reconciliation testing 

That is the thing that unit tests are for. Mistaking unit tests for mix tests can have disparate outcomes on the time it takes to run your test suite. Unit tests are commonly exceptionally quick, so they are run for each form activated in the CI condition. 

3. Know why coordination testing is unique in relation to unit testing 

4. Keep your testing suites independent 

Joining tests ought not to be run along with unit tests. Engineers taking a shot at the particular business rationale in the code must have the option to run unit tests and get close quick input to guarantee that they haven't broken anything before submitting code. 

5. Log broadly 

A unit test has a particular extension and tests an exceptionally little bit of your application, so when it comes up short, it's generally very straightforward why and fix the issue. Mix tests are very extraordinary.
Ready to use Lean Test Automation Architecture using Java and Selenium
Tags: java, webdriver, testing, automation
Published: 2020-07-13 08:45:32

If you looking for ideas to implement a lean test automation architect with Java as the programming language, Selenium WebDriver, and some good open-source libraries you must take a look at this project.
Give you feedback and a star ⭐
https://github.com/eliasnogueira/selenium-java-bootstrap
How to convert PyTorch model to Tensorflow
Tags: machinelearning, python
Published: 2020-07-13 08:16:42

---
title: How to convert PyTorch model to Tensorflow
published: true
description: In this video we will convert Pytorch model to Tensorflow using (Open Neural Network Exchange) ONNX. ONNX is a standard format supported by a community of partners such as Microsoft, Amazon and IBM. PyTorch is mainly maintained by Facebook and Tensorflow is built in collaboration with Google.
tags: ml, python
cover_image: https://dev-to-uploads.s3.amazonaws.com/i/mj3jxyz7j94tas0w5lhf.jpg
---

{% youtube 8TBMiz325M8 %}

In this video we will convert Pytorch model to Tensorflow using (Open Neural Network Exchange) ONNX. ONNX is a standard format supported by a community of partners such as Microsoft, Amazon and IBM. PyTorch is mainly maintained by Facebook and Tensorflow is built in collaboration with Google.