Published - Fri, 13 May 2022

React - A JavaScript Library : Highly in-demand skill

React - A JavaScript Library : Highly in-demand skill

From conception of an idea or business case to testing, a top-notch React developer can help you build interactive components for your website or web applications using the React development concepts.

What is React.js? What does a React developer do? These are a few of the most common questions we see on the web. We’ll answer these questions and more in this blog.

Let’s first explore the interesting world of React. Alternately spelled as React.js or ReactJS; React is a declarative, efficient, and flexible JavaScript library for building user interfaces. It lets you compose complex User Interfaces (UIs) from small and isolated pieces of code called “components”.

Simply put, UI is a term that describes any element that allows users to interact and communicate with the information saved in a device (laptop, tablet, smartphone, etc.). The user interface is the primary point of contact between humans and modern computers. Keyboards, mouse, computer texts, and desktop layout are some of the best examples of UI.

React was created by Jordan Walke, a software engineer at Facebook, who released an early prototype of React called "FaxJS". He was influenced by XHP, an HTML component library for PHP. It was first deployed on Facebook's News Feed in 2011 and later on Instagram in 2012. It was open-sourced at JSConf US in May 2013.

Before ReactJS was introduced, developers back then were stuck building UIs using raw JavaScript or with jQuery (a React predecessor that focused less on UI). This meant that the development process took longer with more room for errors and bugs. To solve this problem, Facebook engineer Jordan Wilke created FaxJS (first React prototype) in 2011.

React makes it simple and easy to build websites and apps, create UI test cases, reuse existing codes on the website to its mobile counterpart, and improve the UI and performance of web applications. It’s versatile enough to use where JavaScript is required.

Today, more and more enterprises benefit from ReactJS, a testament to its burgeoning popularity in software development. Some of the high-traffic websites that use React are Facebook, Netflix, Airbnb, Instagram, Uber, Reddit, Salesforce and so on.

Along with the upswing in React usage, is the surge in demand for a React.js developer. A highly skilled React developer is involved in the entire stages of the development and maintenance of user interface components.   

 

What does a React Developer do?

In a nutshell, a React developer designs and implements user-facing features for websites and applications using React.js.

They are known as front-end developers, a sub-group of developers that manage everything that users see on their web browsers or applications. In other words, they are responsible for the look and feel of a website or application to ensure a seamless experience for users.

The menu buttons, online forms, the graphic icons and images, voice recognition (Siri and Cortana), and gesture-driven interface (example: pinching the smartphone screen to zoom in and out) are just a few of the exciting things that a React developer can do.

React developers use their knowledge in JavaScript, CSS, HTML, and other programming languages and incorporate them into the ReactJS open-source library ecosystem.

Generally, they work with software testing specialists to test the codes before the web application or website goes live. React developers may also work with a team of developers, programmers, web designers, and project managers to work closely on a client’s software project.

 

React Developer Skills

Indeed, React is a powerful tool for front-end development. Many organizations agree that having a solid background in React is essential to dominating this technology-driven industry.

To level up in this competitive field, a React.js candidate should have the essential skills in these React developer tools:

  • Web technologies – An in-depth knowledge and experience working with web technologies such as JavaScript, HTML, CSS, TypeScript, C#, SASS, Stylus, Stylus, Python, and LESS.
  • React tools – Strong proficiency in Enzyme, Webpack, Redux, and Flux.
  • Web frameworks – Proven expertise in different frameworks like React Native, AngularJS, Angular2, VueJS, SocketIO, Backbone, KnockoutJS, Svelte, and Bootstrap.
  • Open-source Libraries – Demonstrable experience with JQuery, MomentJS, html5sql.js, RequireJS, and Loads.
  • Software testing tools – A good working knowledge in testing codes using Mocha, Jest, Unit-tests, TDD, Karma, VCS, and Selenium (base).
  • Databases – A familiarity working with different databases such as MySQL, NoSQL(e.g., MongoDB), PostgreSQL, Redis is recommended.
  • Code repositories – Working experience using GitHub, Bitbucket, RhodeCode, and devZing Subversion
  • Cloud management – A strong background in different cloud platforms like Amazon AWS, Microsoft Azure, OpenStack Apache, and Google Cloud Platform
  • Project management – It’s a great advantage if they know how to manage projects using JIRA, Basecamp, Trello, Asana, ClickUp, or Zoho Projects.

React Developer Salary

Now for the fun part. Let’s get an estimate on the cost of hiring a React developer. Overall, React developers are one of the highest-paid among JavaScript developers. Their salary depends on:

  • years of experience
  • different roles held over time
  • level of expertise
  • special skills
  • training and certifications
  • geographic location

The average ReactJS developer salary in the USA is $119,997 per year or $61.54 per hour. Entry level positions start at $99,890 per year while most experienced workers make up to $150,000 per year.

 

 

Created by

Skillzam Team

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Comments (1)

Rizwan Ansari
Rizwan Ansari
I too believe that React is more preferred than Angular for the first spot.
Tue, 20 Sep 2022
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This can help businesses to reduce the workload on their support teams and improve the overall customer experience. Language learning: ChatGPT can be used to help people learn new languages by engaging in conversational practice. This can be particularly useful for people who are learning a new language but don't have access to a native speaker. Mental health support: ChatGPT can be used to provide mental health support and counseling to people who may be struggling with anxiety, depression, or other mental health issues. The chatbot can provide a non-judgmental listening ear and offer practical advice and resources. Personalized shopping assistance: ChatGPT can be used to provide personalized shopping assistance to customers, helping them to find products that meet their needs and preferences. Education: ChatGPT can be used to provide personalized learning experiences to students, offering tailored feedback and guidance based on their individual strengths and weaknesses. Challenges and Limitations of ChatGPTDespite its many advantages, ChatGPT still faces several challenges and limitations that must be addressed in order for it to reach its full potential. Bias: Like any machine learning model, ChatGPT is only as unbiased as the data it is trained on. If the data contains biases or stereotypes, the model is likely to replicate them in its responses. This can be a particular concern in areas like mental health support, where bias and stereotype can be harmful. Addressing this challenge will require ongoing efforts to improve the diversity and quality of the data used to train the model. Limited domain knowledge: While ChatGPT is capable of generating responses on a wide range of topics, its domain knowledge is limited to what it has learned from the data it has been trained on. This means that the chatbot may struggle to respond to queries outside of its domain, or provide inaccurate or incomplete information. Addressing this challenge will require ongoing efforts to improve the depth and breadth of the data used to train the model. Safety and security: ChatGPT is designed to engage in natural language conversations with humans, which means that it may be vulnerable to attacks or abuse. For example, it may be used to spread misinformation or engage in phishing scams. Addressing this challenge will require ongoing efforts to improve the safety and security of the chatbot, including measures like content moderation and user verification. Limited emotional intelligence: While ChatGPT is capable of generating responses that are grammatically correct and semantically relevant, it is still limited in its emotional intelligence. This means that it may struggle to understand and respond to emotional cues in the same way that a human would. Addressing this challenge will require ongoing efforts to improve the emotional intelligence of the chatbot, such as incorporating sentiment analysis and other emotional recognition techniques. Limited memory: ChatGPT is designed to analyze each query in isolation, which means that it may struggle to maintain a coherent conversation over time. This can be particularly challenging for longer or more complex conversations, where context and history are important. Addressing this challenge will require ongoing efforts to improve the memory and long-term learning capabilities of the chatbot.Energy consumption of ChatGPT queryThe energy consumption of each query on ChatGPT can vary widely depending on several factors such as the complexity of the query, the size of the model, and the computational resources available to process the query. However, it is generally known that large language models like GPT-3, which is the architecture that ChatGPT is based on, are known to be energy-intensive and require significant computational resources to operate.According to a study conducted by researchers at the University of Massachusetts Amherst, the energy consumption of a single inference pass on a GPT-3 model with 175 billion parameters can range from 3.2 kWh to 13 kWh depending on the hardware used to perform the inference. This energy consumption is significant when compared to other common everyday devices like smartphones or laptops, which typically consume less than 1 kWh per day.It's worth noting that ChatGPT is a cloud-based service that is hosted by OpenAI, which means that the energy consumption of each query will also depend on the energy efficiency of the data centers used to host the service. OpenAI has publicly committed to using renewable energy sources to power its data centers and has also implemented energy-efficient hardware and cooling systems to minimize the environmental impact of its operations. Overall, while the energy consumption of each query on ChatGPT may not be easily quantifiable, it is clear that large language models like GPT-3 are energy-intensive and require significant computational resources to operate. As such, it is important to consider the environmental impact of these models and work towards developing more energy-efficient and sustainable technologies for the future. Conclusion ChatGPT is a powerful and versatile chatbot that has the potential to revolutionize the way we interact with machines. Its ability to generate human-like responses and adapt to user intent and context make it a valuable tool for businesses and organizations across a wide range of industries. However, as with any emerging technology, ChatGPT also faces several challenges and limitations that must be addressed in order for it to reach its full potential. By working to improve the quality and diversity of the data used to train the model, as well as its emotional intelligence and memory capabilities, we can ensure that ChatGPT continues to push the boundaries of what is possible in the world of chatbots.

Tue, 21 Mar 2023

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