teleren/devto huggingface dataset:
User Interface for a Certificate Generation & Validation
Tags: frontend, html, css, react
Published: 2021-07-21 13:04:35

Hey folks! A lot of us are excited for awesome certificates right? Shall we do something together? 👋🏻

How about we, yes we all, create a User Interface for a Certificate Generation & Validation? 🤘🏻

Join me this Saturday for a Live Workshop on creating the best User Interface and User Experience for those who are going to claim their certificates! 🔥

![](https://i.imgur.com/1Hvl1uz.png)

If you're interested, don't wait, [register here](https://rb.gy/08n7u5) for an exciting stuff! 🔥
Exceptions Handling | PHP
Tags: backend, codequality, cleancode, php
Published: 2021-07-21 13:03:43

Have you ever had experience with unfriendly error message when something goes bad? Or just `500 status` page?

Some user do. You get notified about that as a developer. However the user cannot tell exactly what went wrong. Here goes checking logs and so on.

To keep user experience in high standarts one should never get in such situation. Here comes exceptions handling.

## What are exceptions?
It's a **_state_** of code which require special treatment because it's not running as it's supposed to.

## Types of exceptions
* **_Logic exceptions_** - requires a fix or a change in the code or any content managed by the developer. Such exception is mainly an interal check or a kind of assertion. 
* **_Runtime exceptions_** - may be caused by the input from the user, or an error in communication with other services. Such exceptions shouldn't require a fix in the code. 

## Good practices to use
* Don't use a **boolean** as an exception replacement. You should throw exceptions for error handler instead. You shouldn't force others to actively check the return value of the function to see if everything went alright.
* Don't throw the `Exception` class directly. Instead extend the `Exception` class or use one of the available sub-classes. Throwing generic class is preventing catching a specific problem.
* Do not hide what is going wrong by catching all exceptions. Your could should fail loudly with a big error message instead. If you're logging all the issues it might take some time for someone to notice that. For example if your dabatase cannot be accessed there's nothing you can do to fix this. 
* Provide a meaningful message in the exception.
* Don't show exception to the user. User won't probably understand it. You're revealing project structure. The handler should return more general and user friendly message instead.
Chatbots on Web Development
Tags: ai, chatbot
Published: 2021-07-21 12:29:45

According to statistics, 24.9% of consumers have used chatbots to interact with businesses, up from 13% in 2018.
It's no surprise that chatbots are becoming the most popular web development trend.
What are these chatbots, and how do they affect web development.
First of all, these are computer programs using artificial intelligence technologies such as machine learning (ML) and natural language processing (NLP).
Buyers and site users resolve their issues faster. AI bots encourage self-service.
Drop-down menu buttons and search functions are fading away. Instead, customers' questions are anticipated, and the desired feedback is delivered in a fraction of a second. In addition, the service format is becoming continuous and fluid.
Classification methods for launching a chatbot are 
	Pattern-Matching Bots.
	Using Algorithms.
	Artificial Neural Networks.

Pattern-Matching Bots.
The main structure of these bots is Artificial Intelligence Markup Language (AIML). A bot can only give relevant answers to questions that are provided in its models.
Using Algorithms.
There is a unique pattern in the database. A multinational naive Bayesian algorithm is being developed to create a hierarchical structure.

Artificial Neural Networks.
Bots use neural networks to analyze the context of the data and provide personalized responses.
Neural networks enable bots to analyze the context of the data and provide personalized responses. Over time, the neural network becomes more intelligent, generating more relevant feedback.

Chatbots provide users with a more natural, faster, and more user-friendly Q&A experience.
Bots provide immediate customer service. Taking into account the intentions of the clients, they give concrete answers to all questions.
The important part is that chatbots provide a user experience across all devices and support at all times.
That is, bots work as separate micro-applications.

So, today many well-known brands are investing in AI technology and chatbot development.
To learn more about this issue, join the chatbot communities and open-source networks.

References:
https://www.zfort.com/blog/The-Impact-of-Chatbots-on-Web-%20Development
https://www.innoarchitech.com/blog/artificial-intelligence-deep-learning-neural-networks-explained#:~
Frameworks of the Future?
Tags: discuss, webdev, rails
Published: 2021-07-21 12:29:06

Something has been nagging me in the back of my mind for a while:  Where are the "modern" web frameworks?

What I mean is that---apologies for the history lesson---once [Ruby on Rails](https://rubyonrails.org/) got its footing, it did enough that it changed how web development happen.  Web applications in the 1990s was a nightmare, hacking everything together through [CGI](https://en.wikipedia.org/wiki/Common_Gateway_Interface) and `session` variables, which didn't *substantially* change until Rails.

Today, most of that mess is just how you threaten children to behave, because everybody else now has their equivalent to Rails.  C#/VB.NET's [ASP.NET](https://dotnet.microsoft.com/apps/aspnet), Elixir's [Phoenix](https://www.phoenixframework.org/), Go's [Beego](https://beego.me/), PHP's [Laravel](https://laravel.com/), Haskell's [IHP](https://ihp.digitallyinduced.com/), Java's [Jakarta EE](https://jakarta.ee/), JavaScript's [Express](https://expressjs.com/), and literally dozens of others now have effective parity with Rails.

I was also struck by a coincidence:  I picked up Rails about fourteen years ago, and wrote my first (awful) web application about fourteen years before *that*, and yes, I'm really that old...But that triggered the question.  If web development in 1993 looked like it would in 2007 (except for still-obscure Rails), and Rails looked like web development today, is there a framework out there that has all the features that we'll demand as necessary in 2035?

I'm not looking for the overthrow of CRUD-through-MVC.  Rather, [Hobo](https://github.com/hobo/hobo) and [Hoodie](https://github.com/hoodiehq/hoodie) seemed like advances---Hobo was sort of Rails for Rails, and Hoodie was an offline-first framework for something like what we now call Progressive Web Apps---when I tried them early in their life-cycle, but both seem to have withered away.  And nobody else (that I can find) seems interested in improving graphical design (as in, "just use Material Design, or Carbon, or whatever"), cleaner parent/child relationships, automatically updating views and controllers to match changes to the models, and probably features that I don't know that I need.

I asked a similar question in a different community, and the closest they came up with was the niche [Apache Beam](https://beam.apache.org/) and the obligatory vague hand-waving about no-code systems.  So, maybe DEV seeming to skew younger and more deliberately technical might get a better view of things?  Is anybody using a "Framework of the Future" that we should all know about?
What is Product Feed Management in Magento

Published: 2021-07-21 12:17:42

Product Feed Management is the process of improving product feeds and centralising all information in order to reduce the risk of human mistake. When selling online, proper and organised product management boosts sales efforts.
You're probably wondering what optimising the feed involves. It usually includes improving the following:

>> Feed quality and
>> Source Quality

Product feed management may be described as producing the most efficient feeds and updating them on a regular basis in the context of a Magento seller. Proper feed management in Magento is essential for sellers to accomplish flawless multi-channel listing and selling since it ensures that each sales channel's criteria are met.

##What is An eCommerce Product Feed Manager or a Data Feed Manager?
A Product Feed Management tool (also known as an eCommerce Product Feed Manager) is a centralised solution that allows you to monitor, enrich, and update product feeds on your shop and related platforms.

To put it another way, a product feed manager allows sellers to manage feed and multichannel distribution without the need for a developer.
Let's look at why employing an automated Product Feed Manager to sell online is so important.click to know more about [Magento product feed manager](https://cedcommerce.com/blog/product-feed-management-in-magento-explained/?utm_source=dev.to&utm_medium=sonker).
Crypto Exchange Software Development Solution | To develop secure exchange
Tags: cryptoexchangesoftware
Published: 2021-07-21 12:15:59

Start your own crypto venture by our trusted Crypto Exchange Software Development solution. With Antier Solutions, we integrate high-class features to your exchange including, high performance, highly customizable, secure and reliable, advanced control panel, cheaper and faster, and more. If you use white label exchange software instead of developing an exchange from scratch, you can get your trading platform in just 3 weeks, amazing it is? Additionally, the development cost is also very less. So, hurry up start your venture with Antier Solutions now!
How I started pursuing my UX Nano Degree and Google UX Design Certification at the Sametime  Part 1
Tags: coursera, udacity, ux
Published: 2021-07-21 12:10:27

It has been very interesting during this Covid period for all of us. I have worked in the Software and Website Development industry for five years now . It I longe than that but I took it serious five years ago. I have also worked as Co-founder non profit Start-up. The product we are working on is dear to my heart in my country.As someone from Ghana , the tech Space is not understood by by a lot of people not to talk of taking us serious.  A client will give you a joband you become the Developer, Designer ,Copywriter and if you are not lucky the Photographer too.  A client would want a fully functional ecommerce website with a payment gateway at a cost of $100. I got a little break when I was offered the chance to be a Tech lead for a hub during one of the Incubation for their 2020 co-horts and I would say  it was very interesting.  I had to do a lot of learn as well as research. 

Enough about the bla bla bla.I will write two articles separately in relation to my experience with Udacity and Coursera. Let's go straight to the meat of the story. From where I come almost 90% of Developers/Designers do not buy Courses online , we have our way around it.So we finish with it, haven the skills and experience but no certificate to back it. So I was obviously happy when Google launched their UX Design Certification and Udacity also launched the nano degree programme.
So during the late part of Covid period,  there were alot of Scholars by some companies as well as institutions that were being offered both for Google UX Design as well as Udacity. I applied for it and it got both scholarships. 

This is just the part one. I will go into details about the two courses in the part 2.
I am almost done with both programs and I will say, so far so good. I am open  for any Start-up or Company that needs a UX/UX intern . Stay tune for part 2
Daily Developer Jokes - Wednesday, Jul 21, 2021
Tags: jokes, dailydeveloperjokes
Published: 2021-07-21 12:00:23

---
title: "Daily Developer Jokes - Wednesday, Jul 21, 2021"
description: "Check out today's daily developer joke! (a project by Fred Adams at xtrp.io)"
series: "Daily Developer Jokes"
cover_image: "https://private.xtrp.io/projects/DailyDeveloperJokes/thumbnail_generator/?date=Wednesday%2C%20Jul%2021%2C%202021"
published: true
tags: #jokes, #dailydeveloperjokes
---

Generated by Daily Developer Jokes, a project by [Fred Adams](https://xtrp.io/) ([@xtrp](https://dev.to/xtrp) on DEV)

___Read about Daily Developer Jokes on [this blog post](https://xtrp.io/blog/2020/01/12/daily-jokes-bot-release/), and check out the [Daily Developer Jokes Website](https://dailydeveloperjokes.github.io/).___
### Today's Joke is...
![Joke Image](https://private.xtrp.io/projects/DailyDeveloperJokes/public_image_server/images/5e1258b924543.png)

---
*Have a joke idea for a future post? Email ___[xtrp@xtrp.io](mailto:xtrp@xtrp.io)___ with your suggestions!*

*This joke comes from [Dad-Jokes GitHub Repo by Wes Bos](https://github.com/wesbos/dad-jokes) (thank you!), whose owner has given me permission to use this joke with credit.*

<!-- 
Joke text:
A programmer's significant other tells them, "Run to the store and pick up a loaf of bread. If they have eggs, get a dozen."

The programmer comes home with 12 loaves of bread.
 -->
Top Benefits of Machine Learning into Your Business

Published: 2021-07-21 11:56:57

Ever since Big Data and Artificial Intelligence  came into the limelight, Machine Learning services and Deep Learning are other terms making headlines in the tech arena. It has become one of the most favored technologies, not just as the best career option but also for solving complex business problems and supporting businesses to make informed decisions. Businesses are exploring ways to implement machine learning into their business process so that they can make predictive analyses and gather information to make the correct business decision. 

You have plenty of things to learn about Machine Learning in your business. Still, in this article, we shall discuss the top benefits of machine learning and how your business can benefit from the advent of technology. But let us begin with the basics first. So, let’s explore;

What is Machine Learning?

When Artificial Intelligence is a science that empowers machines to imitate or mimic humans, especially the behaviors, Machine Learning acts as a subset of AI. At the same time, it works to support machines by feeding them data. With comprehensive and accurate data, machines can work better. So, it’s brief information about Machine Learning; we shall now discuss the core parts in the following paragraphs;

Top Benefits of Machine Learning

Machine Learning Helps Identify Trends and Pattern <a href="https://dashtechinc.com/machine-learning-services/">Machine Learning Services</a> is all about feeding data to a system or machine; it can help you predict the business trends much in advance and take the decisions accordingly. It can help you review a large volume of data so that you can discover new trends and make your job easy. 

Fully Automated, No Human Interaction Required 

Machine Learning does not require any human to review data and gather information. It enables machines with the ability to learn. Hence, it empowers machines to make decisions based on the prediction and improve their capability as it matures. 

Continuous Improvement 

Machine learning empowers machines with learning capabilities as it grows. That keeps the machines at your business continuously improvising itself in terms of accuracy and efficiency. 

Final Thoughts 

When it comes to empowering your business with innovative technology, you cannot escape the advent of these technologies Artificial Intelligence, Machine Learning, Deep Learning, or others. So, if you want to make your business process smart and add growth to your business, then integrating an ML-equipped system is the need of the hour. 

If you need any information, suggestion, support, and AI, ML app development services, connect with us. We help you excel in your business to build innovative solutions at fair costs.
Ebrahim Nateghi | Core Skills for Project Manager
Tags: projectmanager, skills
Published: 2021-07-21 11:55:38

According to Ebrahim Nateghi, You just want to see a project to an end, you want it to be right within budget and on time while still controlling risks and uncertainties. It’s not surprising that the skills that make up successful project manager spread across the entire spectrum of personality.

Ebrahim Nateghi is providing details on the skills every project manager must have in order to be exceptional in this career. 
https://medium.com/@ebrahimnateghi/key-skills-project-manager-e61e118fc77f
Evrone at TeamLeadConf 2021
Tags: eventdriven, eventsinyourcity, writing, webdev
Published: 2021-07-21 11:41:22

The TeamLeadConf and the Highload ++ conferences are considered to be the two most anticipated events for developers. TeamLeadConf has been held since 2018 and brings together professionals in the field of development management.

Unlike narrow-profile conferences devoted to specific languages ​​or issues, TeamLeadConf is universal. There you can meet developers, managers, DevOps, and QA specialists who want to learn more about technical management.

On April 29–30, 2021, [the TeamLeadConf was held at the World Trade Center in Moscow](https://evrone.com/teamleadconf-2021). Evrone was there with a stand for participants, and team members Tatiana Sukhodolova and Mikhail Grachev presented their reports.
PHP • How to print Non-HTML output from web server using php?
Tags: programming, html
Published: 2021-07-21 11:16:02

In some cases, when working with a web server, overriding the web server's default content type may be required. There may be cases where you need to send data as plain text, JSON, or XML, for example  
The header() function can send a raw HTTP header. You can add the Content-Type header to notify the browser of the content we are sending.  
Consider the following code, where we set Content-Type as text/plain:

CODE:

```php
header("Content-Type: text/plain");echo "Hello World";
```

This will produce a plain text document with the following content:  
Hello World  
  
To produce JSON content, use the application/json content type instead:

CODE:

```php
header("Content-Type: application/json");// Create a PHP data array.$data = ["response" => "Hello World"];// json_encode will convert it to a valid JSON string.echo json_encode($data);
```

This will produce a document of type application/json with the following content:  
{"response":"Hello World"}  
  
Note that the header() function must be called before PHP produces any output, or the web server will have  
already sent headers for the response. So, consider the following code:

CODE:

```php
// Error: We cannot send any output before the headersecho "Hello";// All headers must be sent before ANY PHP outputheader("Content-Type: text/plain");echo "World";
```

This will produce a warning:  
Warning: Cannot modify header information - headers already sent by (output started at  
/dir/example.php:2) in /dir/example.php on line 3  
  
When using header(), its output needs to be the first byte that's sent from the server. For this reason it's important to not have empty lines or spaces in the beginning of the file before the PHP opening tag <?php. For the same reason, it is considered best practice to omit the PHP closing tag ?> from files that contain only PHP and from blocks of PHP code at the very end of a file.
How to create online survey for free with SurveyJS and Google Sheets
Published: 2021-07-21 11:09:53


### Spreadsheet as a database for web application

![Unless stated otherwise, all pictures in the article are by the author.](https://cdn-images-1.medium.com/max/2800/0*331TE2bgu6hEAq27)

Surveys are a convenient method for quick collecting people’s opinions in many areas. Despite a giant increase in access to data collected passively (e.g. browsing history, eye tracking), organisations still rely on gathering feedback from their customers. Survey data can be used for sentiment analysis, [designing new products](https://netlabe.com/how-to-develop-perfect-product-using-conjoint-analysis-1c2d9e4beb5d), building better recommendation engines and market segmentation. The survey can be conducted in person, by phone or **online**.

Of course, there are many paid services for making online questionnaires with no or little code. For open-source solutions, the industry standard is LimeSurvey. Getting started with a simple questionnaire is rather quick, but you still need hosting for LimeSurvey. If you are a data scientist, you are unlikely to want to play with the administration of a large system just to collect the necessary data.

However, it is possible to use simple static applications and free tools for this purpose.

In this article, I show you how to create a simple survey using SurveyJS Library. Next, we will collect and store data from your respondents in Google Sheets. Once you set up the dataflow, you can use it in many projects.

Read more:
https://netlabe.com/how-to-create-online-survey-for-free-with-surveyjs-and-google-sheets-d9a782d0f458
CP Template
Published: 2021-07-21 11:09:22

---
published: true
series: Competitive Programming
title: CP Template
---

### Disclaimer:
> I am a beginner in competitive programming, and this is me documenting my learnings. So, anything I say is just what I think at the moment and should not be taken as hard truths.

## My CP Template

It is always fun to write and maintain your own template file for competitive programming, just like maintaining `.virmc` file.
I primarily program in C++. So here is my cpp template file:

{% gist https://gist.github.com/geekypandey/aebf1361149957fe0b9b3d9eddd0d1d9 %}

Now how to keep improving this template,
1. Experiment with different things, and make it customize to your needs.
2. Look at other people template and learn.

The same thing could be said for editing your `.vimrc` file, that is if you use vim :-)
Introduction to Fourier analysis of time series
Tags: timeseries, datascience, forecasting
Published: 2021-07-21 11:08:19

### How to detect seasonality, forecast and fill gaps in time series using Fast Fourier Transform

![](https://cdn-images-1.medium.com/max/2000/0*TBLuYVmUK48z50Px)
*Mehmet E. Yavuz (2021). Fourier Series Animation using Harmonic Circles ([link](https://www.mathworks.com/matlabcentral/fileexchange/49533-fourier-series-animation-using-harmonic-circles)), MATLAB Central File Exchange. Retrieved January 24, 2021.*

In this article, I will show you how useful for time series analysis is the Fourier transform. We will use the Fast Fourier Transform algorithm, which is available in most statistical packages and libraries. Visualisations and code examples in Python supplements this article.

Read more:
https://fischerbach.medium.com/introduction-to-fourier-analysis-of-time-series-42151703524a