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Skills Every Full Stack Developer Needs in 2021

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Skills Every Full Stack Developer Needs in 2021

In 2019 Stack Overflow surveyed over 90,000 developers globally, and 51.9% of the participants turned out to be full stack developers. And that number will continue increasing given the current scenario we live in where we can’t lift a finger without using a piece of software.

There are applications for everything you can think of. From social media to apps that test your kissing skills! Companies are continually looking for new ideas to create apps, websites, and platforms to hook an audience. For this, they are on the look-out for a full-stack developer who can help them put their ideas and objectives into practice by building applications that consumers can’t get enough of.

What Is Full Stack Development?

Full stack developers combine the programming of the client side or the frontend of the website and the server side or the backend of the website to create an end-to-end solution for a web application to run smoothly. In other words, full stack development involves engineering a website or mobile application that has an engaging user-interface (frontend) that also smartly handles data (backend) behind the scene to provide quick solutions to a user query.

What Is Frontend Development?

Frontend development involves creating a visible part of the website where users will be engaging. The screen where users enter a query or submit the required details to be directed to a solution or a specific dashboard forms the frontend.

A web application needs to be easily-navigable and visually appealing to encourage more users. Therefore, while programming, the frontend developer must take care of both the structure and the web application function. The frontend programming languages are:

  • HTML
  • CSS
  • Javascript
  • Jquery

What Is Backend Development?

Backend development involves data handling behind the curtains. When a user enters a query on a web server over the internet, the query is forwarded to the web application’s server. The web application server looks into the database for the desired answer and sends it across to the web server. The database and the application server, and the operating system form an integral part of backend development. The backend programming languages are::

  • Java
  • PHP
  • Ruby on Rails
  • Python
  • .Net

Why Companies Hire Full Stack Developers?

It’s impossible to know why companies hire full stack developers without understanding what their role is.

A full-stack developer is someone who can provide the flexibility companies seek among their tech hires, thanks to their all-encompassing knowledge of both backend and frontend development. Yes, specializations do matter, and specific projects may require designated engineers for backend and frontend coding. However, for many businesses, a full-stack developer is all it takes to create a great piece of programming sporting a deft user-interface teamed with efficient back-end programming involving the server and the database.

Startups also have a high demand for full-stack developers who can help develop a Minimum Viable Product, a crucial first step in the journey of a product or API application before its official launch. At this stage, full-stack developers contribute by programming the initial features of a product that either makes it a deal-maker or a deal-breaker when the first set of feedback from customers is collected.

2021 would be a manifestation of more businesses embracing automation and, full-stack developers would be in demand due to the following skills: 

  1. Their backend and frontend programming knowledge.
  2. They are able to handle the server end and the client end of a web application streamlining data structure and algorithm.
  3. Their comprehensive understanding of development allows them to troubleshoot without second assistance.
  4. A single full-stack developer can engineer a complete website or application, unlike a specialist who knows only one of the areas of a software solution. For example, a System Administrator takes care of only the operating system and the servers. A full-stack developer will handle the operating system, the servers, the UI/UX, and the database.

Do You Have What It Takes To Be A Full Stack Developer?

In 2021, the competition among companies wanting to incorporate the most efficient technologies in their products is going to be higher. The bar will keep rising in terms of launching software products that make the lives of consumers easier.

So, as a full stack developer, you have to know your frontend and backend like the palm of your hands. You must be acquainted with all the latest tools and languages to take care of all types of market demands. 

The Key Skills Required Of Full-stack Developers Are:

1. Frontend Skills: Frontend skills involve mastering the programming languages you would need to build an efficient user interface. The first step is to build your foundation with HTML and CSS.

HTML – HyperText Markup Language forms the basis of the frontend development of a website. You would implement HTML to define each part of the website’s functionality that the user would be viewing.  The point of HTML is to inform the browser of the website’s structure for it to interpret paragraphs, headers, links, images, and other elements.

CSS – If HTML is the structure, CSS or Cascading Style Sheets adds aesthetics to the structure. Imagine pretty fonts, visually appealing backgrounds and colors, animation and 3D effects.

JavaScript – After structure and aesthetics a good web application will have all the features users can engage with. This includes contact forms, personal details forms, sign up/login windows, drop-down menus, maps, video players – anything where a user would be completing a task on the website. Good knowledge of JavaScript will help you add user-interactive features to a website.

Jquery – Learning Jquery will help you use JavaScript on the website with ease. For example, while implementing AJAX calls (loads personalized content without installing them into the HTML), JavaScript may feel like a complicated language to code. However, with Jquery, you can do it with ease. So is the case with DOM manipulation and other complicated tasks like HTML event methods, CSS manipulations etc. Plus, it comes with many plugins to help you accomplish almost any task.

2. Backend Skills: Your backend skills would determine how you use coding and business logic to connect the web server with the application server and the database. The following languages are instrumental in implementing the codes that would ensure a web application runs smoothly.  

Python – It’s a versatile, easy-to-learn language that works on various operating systems. You can use Python’s multiple web application frameworks to implement automation wherever necessary and create prototypes (mock applications). Python has many web frameworks that you can use to create competitive web applications that also incorporate machine learning.

Java – As a full-stack developer you are going to handle APIs, IoT, big data, scientific applications etc. Java could be your ticket to developing amazing software solutions. Plus it’s a beginner-friendly language. For instance, memory management and pointers are complex parts of programming. With Java you can accomplish these tasks with ease.

PHP – PHP has a close affinity with other programming languages such as Java, .NET, and Ruby. The popular open-source framework Laravel is a PHP framework and it’s still relevant to learn PHP as a backend language because as a beginner, you may end up writing code that contains errors or bugs. But, PHP can make any code work! By the way, WordPress was built on PHP.

Ruby on Rails – It’s a stable language unlike other languages like JavaScript/Node.js that change constantly. So, that’s a relief for new aspirants looking to create their first full-stack web application using one language. With Ruby you can develop an entire application without having to leave the framework.. It’s the ideal language for creating the currently trending, single-page application.

.NET – .NET could be your key to learning the principles of a good software design and building a robust web server. It’s a Microsoft supported software development framework that businesses use to build a product that works as a web-based application, desktop software and also has a cloud infrastructure.

MEAN – In the recent past MEAN has become quite popular with full-stack developers as it contains a complete list of frameworks required to accomplish end-to-end web application development. It is based on JavaScript, which means you can avoid the hefty task of learning too many full-stack programming languages. The frameworks are:

  • MongoDB, which can be used for the database.
  • Express.js can be used to develop a web application.
  • AngularJS is for frontend development.
  • NodeJS is for back-end development.

3. Developing APIs – Full-stack development is incomplete without the development of secure APIs that are meant to connect mobile or web applications to databases and servers. Learning REST or Representational State Transfer will help you develop architectures for APIs. A good thing about REST is that you can change the code on the client-side or the server-side anytime without interrupting each other’s operations.

4. Understanding Version Control System – You would be probably working with a number of developers who are continuously modifying the source code. By honing your version control system skill, you would be able to keep a track of the modifications in the code. This will help you compare between various code versions and revert to a previous version in case of an error. GIT, CVS, SVN, Mercurial are some of the most popular version control software tools you can learn.

5. Cybersecurity Skills – Though most companies will have cybersecurity specialities in their tech teams, knowing something about security testing could be a good addition to your resume. To conduct security testing you would have to know the full stack programming languages like Java, C/C++, PHP, Rubi. Perl. Lisp. Python, JavaScript, Apple’s SWIFT, SQL by heart.

6. Understanding Algorithm and Data Structure – A full stack developer is a problem solver. Therefore, a good company would be evaluating a candidate’s knowledge of data structure and algorithms. By studying the data structure and algorithms you would be able to formulate logical statements.

Data coding, for example, is an integral part of data structure and algorithms. By learning data coding you would manage to set the fields to collect the desired data efficiently and fix bugs and troubleshoot coding.

7. Testing Skills: End-to-end testing is essential in foolproofing the workflow of an application. This involves integration tests that combine components of the units to check whether they are providing the desired results collectively. Apart from that, there are unit tests that entail testing a single component to see if it’s working properly.

8. Design Skills: As a full stack developer you would also need to improve your UI/UX skills to create a responsive design for the website you are developing. UI/UX tools you might consider learning are Adobe XD, Marvel, Axure RP, InVision, Framer and Figma. Extensive knowledge of these tools will help you experiment with designs. Plus, there are many ways to get better at your designing skills, right from learning from examples to recreating designs for existing apps and asking for feedback on a forum like Reddit.

Wrapping Up

Arriving at the best possible piece of code for handling hefty data is a common theme in a full stack developer’s life. So, if you want to be one, start by updating yourself regarding new methodologies and languages. A great way to do this is by joining a community to learn new techniques. You have to be creative when choosing the right tools and formulate a pathway for an application to work. Besides all the technicalities, you also need to be a good listener who understands and verifies client/company requirements before starting a project to avoid a mismatch between expectations and delivery.

The company or the client for whom you are developing a software solution may not be well-versed in technological terms. As a full stack developer, your job is to understand their expectations and guide them through the methods. Verify if your understanding and their expectations are in tandem before you begin.

If you have a passion for innovation and coding is your lifeblood, all you need to do is polish and widen your knowledge of backend and frontend programming languages. Also, work on your understanding of data structure, algorithms and software design. Do that, and getting a high-paying job as a full stack developer with a good company is just a matter of time.

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Why Is It Important for a Sportsbook to Have a Betting App?

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In recent years, the sports betting business has encountered a number of legal obstacles. As of January 20, 2021, sports betting is still banned in a number of states and jurisdictions throughout the United States. As a bonus, the sports betting sector continues to expand and emerge through mobile application development despite several hurdles and cautions in the past.

The worldwide gambling industry’s fastest-growing segment is sports betting. A CAGR of 6.9 percent predicts that by 2023, it would have a significant portion of the $92.9 billion global markets. A worldwide coronavirus (COVID-19) epidemic seems to be restricting the need for gambling, but sports betting continues to expand since new and easy online sports betting applications programs are being created.

Finally, there are various top sporting gambling applications on the market, thanks to the legalization of mobile betting apps.

Why Phones?

Mobile phones were formerly seen as a luxury. However, this is not the case any longer. Because of the high demand, smartphone manufacturers are releasing new models on a near-monthly basis in order to keep up with the ever-changing demands of the public. There are cell phones available for any budget nowadays, and they provide easy access to the internet, vital information, and a large range of apps. Today, smartphones are utilized for a wide range of purposes, including entertainment, banking, trade, and more.

People are also benefiting from the introduction of 5G or fifth-generation technology, which provides them with quicker download speeds, greater connection, and speedier banking, as well as a better overall experience. Increasing numbers of firms are making investments in order to take advantage of this trend and offer consumers better apps.

The Transformation of Gambling on Smartphones

The transformation that has occurred in the last several years has been a key driver in the industry’s development. People used to gamble for pleasure in conventional poker rooms, casinos, gaming parlors, bookmakers, and bookies. Those days are long gone, but the betting culture endures. Calls were also used to make a number of wagers. However, things have changed.

There are still land-based casinos and sportsbooks, they haven’t vanished. Gambling sites like Las Vegas, Atlanta, and Georgia, remain popular tourist attractions. There are millions of individuals that go to these places to enjoy the opulent casinos. However, it’s also a certainty that revenues at a number of brick-and-mortar casinos have fallen down. Mobile sports betting applications are a major contributor to this, especially now when bettors can find a dozen of apps to choose from in order to gamble comfortably in their homes or while traveling, unlike the land-based casinos where betting is only permitted inside the premises. As more nations and provinces legalize online sports betting, land-based betting outlets are likely to dwindle further in the coming years.

Land-based gambling is outlawed in a number of nations. Despite this, there is a catch. There are a few of them that allow customers to make bets through offshore online sports betting platforms and mobile betting applications. This sector has grown as a result of the proliferation of electronic devices, including laptops, desktop computers, tablets, and mobile phones. It has also been legalized in numerous nations and provinces recently.

Several systems are available to help sportsbooks run their businesses and produce revenues, while also providing an exceptional betting experience for their customers. In the eyes of many bettors, gambling is still an enjoyable pastime, and for others, it’s a significant source of revenue.

The Benefits of Betting on Mobile

If you wish to utilize a mobile betting app, you must have Android or iOS installed on your smartphone. You won’t be able to use any applications on other mobile operating systems, even if they’re getting more popular. Apple’s iOS is supported by certain casinos and bookies whereas Android is supported by most platforms. The following are some advantages of utilizing this OS’s mobile app.

Convenience – Convenience is a big factor in why so many people wager on sports using their cellphones. There are a few components needed to run a mobile phone, it is lightweight, can be taken anywhere, and is widely accessible. Users will be able to make wagers on the fly, which enhances the whole betting experience.

User Experience – The responsiveness of all sports betting systems is undeniable. A wide range of devices are supported by every sports betting site. While responsive websites accomplish the work, the intended result or user experience isn’t provided by them. With the advent of mobile betting applications, a variety of sports betting companies have made the switch to a more user-friendly format for their patrons.

The abundance of games to access – What’s the most appealing feature of the many gaming-capable smartphones? Even on tiny displays, it gives a fantastic gaming experience. In this way, you may choose the sport that best matches your betting style by giving you access to a large range of virtual games, slots, esports, professional sports, and casinos, among other things.

Anytime, anywhere –  With the top sports betting apps, you’ll have access to a wide range of betting markets so you can place your bets whenever and wherever you choose. Different forms of bets give more comfortable betting circumstances and with a high-speed internet connection gives optimum bets. The betting platform can be accessed 24 hours a day, seven days a week thanks to smartphones.

Unique bonuses – There is a lengthy history of mobile sports betting. Mobile sports betting applications are used by a number of professional gamblers. Apps that give subscription benefits for downloads and mobile sports betting to make all sports betting stand out and clear up the clutter are almost universal. Furthermore, the app is accessible and user-friendly, allowing a big number of people to download it.

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How to Watermark Photos for Free: 2022 New Solutions

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Overview

When it comes to branding, especially on social media, you’ll notice visible watermarks on many professional photographs, designs, visual art, and even memes. So how is this done? If you also have this kind of doubt, this post will give you some aid. It will provide you with a new solution about how to watermark photos for free, by showing the step-by-step operation of an effective and powerful watermark editor – WorkinTool Watermark Eraser.

Things to Know

What is Watermark

Watermarks are usually added to many gallery or professional photography images. You may find nearly all images on most websites have their copyright. Generally, if you download them, there are always watermarks overlaid on them, and you can’t get the originals without watermarks until you buy them from the copyright owner. Watermarks can be used to protect confidential information and indicate the validity of legal documents.

Why Watermarks Important

There are several significant reasons accountable for watermarking photos, documents, or videos. 

On one hand, you may have the request of sharing or storing your photos online, to protect your precious memories and your identity, you can watermark them. Watermarks help protect the copyright of your work. People can only preview your work before buying it, and your work is not at risk of theft. No one can steal or alter your work without your permission. 

On the other hand, adding watermarks can also be used to expand the reputation of a brand. If you are a business worker, influencer, or vlogger, you may be quite familiar with this brand tactic. you can increase your fame and brand awareness by adding a digital watermark, which ensures that whenever and wherever someone shares your work, your name or brand is always attached to the work.

Watermark Photos with WorkinTool Watermark Eraser

WorkinTool Watermark Eraser is a powerful and professional watermark processor that I’d like to recommend to you. It is launched by a reliable company – WorkinTool, which has over 10 years of experience in office desktop software. It can output a photo with a watermark in high quality in just a few seconds. It realizes batch processing as well, which means you can add multiple watermarks on images only with one click.

Reasons to Have It

FreeIt has a long-term free trial, and there are no limits at all.
Easy and FastIt is easy to operate, and the converting speed is fast. You can also add multiply watermarks once.
SafeIts program and web page are of great security, so don’t worry it will bring a virus to your device. You don’t have to log in to your account as well. It will not save your personal information and data.
PowerfulIt is an all-in-one watermark processor that can realize many functions like editing photos, rotating photos, removing watermarks, etc.  
Great resultIt won’t affect the quality of your photo and you can output it in high quality.
ClearThe interface is simple and comfortable without any ads on it.

How to Watermark Photos with It

Now let’s figure out how to watermark photos with it. Here is a detailed tutorial provided for you.

Step1. Launch the tool, then pick the option “Add watermark to image”.

Step2. Upload your photo by selecting it from your folder or dragging it directly. The supported image formats are JPG, PNG, and BMP.

Step3. Add text or upload an image watermark. Then press “Save” to store it in your folder.

It is available for you to design the style, size, opacity, and angle of it. You can also decide the position of the watermark. If you choose the custom mode, you can drag the watermark arbitrarily. And for the tile mode, your image will be filled with watermarks. As for the nine-square mode, you can put the watermark according to the nine-square layout.

In addition, it is in favor of batch processing, just add text or image watermarks to the image again or choose the tile mode to cover the image with watermarks.

More to Share

Designed for removing watermarks, the WorkinTool Watermark Eraser can also fulfill other functions like removing watermarks from images and videos, editing images, rotating images, resizing videos, trimming videos, etc. It is an all-around photo processor that is endowed with many usages. The following part presents nearly all its other functions. You can refer to it if you are eager to know more.

Remove watermark from videoRemover watermark from imageAdd watermark to video
Rotate image  Resize videoTrim video
Crop image  Add sticker to photosBlur image
Add text to photo  Add flames to photoAdd overlay to the photo

Wrapping Up

Due to the rapidly growing Information Age and the widespread use of social media, the speed of photo/video spread has been accelerated. To avoid others using your photos and videos for business and to refrain from intellectual property conflicts, you’d better add your watermark to your photos, videos, and other works. Furthermore, if you are a media worker, YouTuber, or vlogger, you have a greater need to add a watermark to your works, no matter for increasing your reputation or for protecting your intellectual property.

In this post, I have introduced you to a powerful and effective watermark editor – WorkinTool Watermark Eraser, by elaborating a brief introduction, key features, and a detailed tutorial of it. The reason why I highly recommend it is plentiful, for instance, its fast and easy operation, its light-weight program, its clear interface without ads, etc. What is most important is that it is completely free for the long term, and it accomplishes removing watermarks with a great result. I’m convinced that you have found the answer to how to watermark photos for free after your careful reading. I will appreciate it if it can offer you some useful information.

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All about Gradient Descent that One Needs to Know in the Context of Machine Learning

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In our everyday life, we are optimizing variables all the time based on our personal choices, requirements, and preferences even unconsciously. We use optimization techniques all day, for instance, we choose the shortest route to avoid traffic when going to work, figure out and decide to take a quick walk around the campus during our free time, and schedule cabs in advance to reach on time. Most of the optimizations we do are about saving time because time is very important in today’s world. 

Optimization has become an integrated part of our lives and as our lives revolve around technologies, it has also become an integrated part of technological products. Optimization is the ultimate goal present at the heart of all statistical and Machine Learning techniques that are widely used in data science. As a result optimization algorithms have been created; one such algorithm is Gradient Descent in Machine Learning

What is Gradient Descent?

Gradient Descent is an optimization algorithm that is used for finding the minimum of a function. In terms of Machine Learning, it is used for updating parameters in a model. Based on the algorithms that were used, parameters can be of various types – coefficients (in linear regression) and weights (in neural networks). To understand the concept of Gradient Descent through a real-life example, think of a hypothetical situation in which a person has to descend into a valley blindfolded. Anyone in a situation like this would firstly take careful steps to find a slope. Once they find a downward slope, they’ll follow it and repeat their steps until they’ve completely descended into the valley, in other words, reached the minima.

This is exactly what the Gradient Descent Algorithm does in a machine. The inclination or slope is the cost function and the role of Gradient Descent is to provide direction and velocity (rate of learning) of movement to find a point where the cost is minimum or in other words, the minima of the cost function. A cost function is“a function that maps an event or values of one or more variables onto a real number intuitively representing some ‘cost’ associated with the event.”

The Application of Gradient Descent

The foremost goal of any Machine Learning algorithm is to build a model. A model is a hypothesis, which can be used to find out estimation for Y based on X. For example – Let’s say we have some data about different houses regarding their price, size, material, etc. and we want to predict the cost of a house based on its size. For one house, one may do it by a manual comparative analysis but let’s assume we need to know the cost for many houses. In such cases, we would like to predict a continuous output for a given number of inputs. It’s a regression problem that can be solved by an optimization algorithm of Machine Learning, such as Gradient Descent. Gradient descent can help to find a line of best fit for a given number of inputs (X values) and provide any number of outputs (Y values).

Types of Gradient Descent Algorithms

  • Batch Gradient Descent – It is used to process training examples for all the iterations. It can get computationally expensive when there are a lot of training examples. In such cases, other types of Gradient Descents are preferred.
  • Stochastic Gradient Descent – The word ‘stochastic’ refers to a ‘random probability’. For a random probability, a random selection is done. Thus, in a Stochastic Gradient Descent, instead of selecting the whole data set, random samples are selected for all the iterations. Since this type of Gradient Descent only uses a single sample to perform all the iterations, it is not computationally expensive. The sample is randomly shuffled and selected from the dataset. The parameters get updated after each repetition; therefore, it’s faster than Batch Gradient Descent.
  • Mini Batch Gradient Descent  It is the fastestform ofGradient Descent which can be used even when there is a large number of training examples. It processes the batch at once. It uses very less iterations, regardless of the number of training samples

Challenges Faced in the Execution of Gradient Descent

Gradient Descent is a very useful optimization algorithm but it is not perfect and has some drawbacks. There are many cases in which gradient descent cannot be used or doesn’t perform well. It happens when one faces different sorts of challenges during the execution of Gradient Descent. There are mainly three types of challenges:

Data Challenges

If the data is arranged in a way that causes a non-convex optimization problem then performing Gradient Descent on it becomes troublesome. Gradient Descent only works for data arranged to cause a well-defined convex optimization problem. In a convex optimization problem, there are many minimal points. The lowest point is called the global minimum whereas the rest, are local minima. It is important to reach the global minimum by avoiding local minima. Furthermore, Gradient Descent cannot be used in a saddle point problem as well. In such a problem, the gradient can be zero even for a non-optimal point.

Gradient Challenges

An improper execution while using Gradient Descent can cause several problems such as a vanishing gradient problem. It happens when the size of the gradient is either too large or too small, which leads to no convergence. 

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