React JS Courses

As mentioned earlier, React.js is a JavaScript library for building web applications and mobile apps. React as a library is only concerned with the state management that renders the state to DOM (Document Object Model). This helps in creating applications via using additional libraries to improve the functionality of the client-side.

Today, the popularity of React.js is reaching new heights because it works with frontend networks.Here are some reasons React.js is becoming popular and used by everyone.

• React makes creating amazing and dynamic web pages and applications very easy. It requires very less coding and offers more functionality than any other library. Moreover, it is quite easy, unlike JavaScript, wherein the coding is complex right from the start.

• React.js uses virtual DOM, which is used for creating web and mobile applications at a rapid pace. The DOM helps in comparing the components of past states, thereby updating all the items in the actual DOM. It helps build dynamic web pages.

• Components used in building React applications are often useful and reusable. These components comprise several logics and controls which are reused. This reduces the application’s development time, thereby building the apps quickly.

React.js is a library that uses the cumulative concepts of JAVA and other frameworks. React helps in efficiently creating user interfaces using declarative code. Now, what is a declaration code? A declaration code declares every element of the application that is being created. The declaration code is used for building complex and single-page applications by utilizing all the libraries.

Look at an example below to understand the declaration code:

<App>

<NavBar/>

<Header title = “ReactJS Course”/>

<BookFilter/>

<BookList/>

<Footer/>

</App>

In this, you can clearly see that each line of code is a declaration depicting the elements of apps.

While building the client-side apps, the developers can find if the DOM (Document Object Model) is slow or not for documents of XML and HTML. It defines how the documents are accessed. To make the DOM work faster, React implements virtual DOM. Thus, virtual DOM is utilized whenever the need for reading or writing arises.

Unlike the elements of DOM, React’s components are plain and easy to create. JavaScriptThe JavaScript, in turn, becomes very fast with the help of DOM. React.js is also used with Node.js because of its design elements.

React and Angular are a bit different from each other. Let us also have a brief description of angular.

Angular is defined as a structured framework that helps in developing web applications. The developers use HTML in the form of template language, thereby allowing the syntax to express the components of the application being built/developed.

Angular is a full-fledged JavaScript framework that helps develop dynamic web and mobile apps. Now, let us look at the points of contrast between React and Angular.

So, these are the major points of difference between Angular and React. React is much more popular and commonly used compared to Angular because of some amazing features.

So, let us now discuss the features of React.

React offers some outstanding features that make it popular across the globe.

• JSX

JSX stands for JavaScript Syntactic Extension. JSX is used for describing how a user interface should appear. The developer can use JSX for writing HTML structures in the file, just like JavaScript code.For example:

const name = ‘react.js’

const greet = <h1> Hello, {name}</h1>

This code shows how JSX is used in React. JSX is not HTML, nor is it a string embedded in JavaScript code.

• Virtual DOM

DOM stands for Document Object Model. Virtual DOM is the first copy of Actual DOM. This lighter version is used because the actual DOM is quite slower. When the state of the object changes, the virtual DOM updates the object, unlike the actual DOM that updates everything.

• Architecture

The architecture of React is based on the Model View Controller. It is a pattern that splits the application layers between models, views, and controllers. The model is related to every UI logic, which serves as an interface between the model and view.

• Extension

React is not just a UI framework. It is a web of many extensions covering an application's structure and architecture. The building of mobile apps and rendering of servers are all due to the extensions of React. Flux and Redux are two of the most important extensions of React.

• Data Binding

React uses the one-way data binding method to make the performance quick and modular. In one-way data binding, the child components are nested in parent components, thereby developing the React projects.

• Debugging

React has broad community developers. The applications made with React are easy to test. Facebook provides the chrome extension that facilitates easy debugging and testing of React models.

So, these are the features of React.js. Well, let us see what React can do!

React is used for building dynamic web pages, mobile applications, etc. With React, the developers can create large web applications that can change their data without re-loading the pages. React is scalable, fast, and very simple to understand. It is based on user interfaces (UI) that correspond to the templates of MVC. Now, nine things can be built with React.

Have a look!

• Messaging Applications

Many messaging applications like WhatsApp, Facebook Messenger, etc., are built with the help of React. The messaging apps help in the communication between two individuals in real-time. This is the reason why React is used for building such mobile applications.

• Social Networking Sites

React also helps create social media apps and sites. Social media sites are single-page applications that don’t go well with dynamic page updates. React is fast and scalable, which is why it is used to fulfill the project’s needs. The unidirectional data binding helps in adding new features by combining React with Redux.

• Web Applications

Many enterprises, such as Airbnb, use React for developing web applications. This is because of the compatible UI elements used in creating them. React is fast in adopting new features, and implementing them enables faster executions. React makes it easier for developers to build and maintain the application's look. React has been consistent and stable. No wonder it is popular among every developer, company, and enterprise.

• Cross-Platform Applications

React helps build mobile applications with React Native framework. Cross-platform apps can also be built by using React. The same code cannot be used, but certain methodologies are used for building the app.

React is very popular because of its features, advantages, and more. This is why developers prefer React over every other framework. Well, features are not only the reason for its popularity.

Let us look at why React is so popular.

Many developers have agreed that React has been very helpful in software development and other projects. The JavaScript library, like React, has an interactive setup that has helped many businesses flourish.

React native is very popular these days. The popularity of React has gone upwards in the last few years. Let us jump deeper into the world of React.js and see why it is so popular.

• Super Easy

One of the biggest key points for React being popular is that it is super-easy to use. It is one of the easiest frameworks which can readily be understood by people. Even beginners can completely understand what it is about. Ranging from installation to creating a web application, everything is easy and can be created without investing much time. Thus, web apps and mobile apps can easily be built through the Reactthrough React framework.

• Reusable Components

As said before, the components used by React are reusable. They can be used multiple times in applications for various purposes like Menus, Dropboxes, Checkboxes, etc. Each and every component has its own logic and control. As a result, maintaining the web and mobile applications is quite easy because React is fast and scalable which makes coding very simple.

• Creation of Dynamic Web Pages

React helps the development of web mobile dynamic pages in the apps. Usually, these dynamic web pages require a lot of complex coding. But that is not the case with REACT. React has JSX features that make coding very simple. JSX takes the mess out of the complex coding and converts it into simple coding, thereby making it comprehensible.

• SEO-Friendly

SEO, known as Search Engine Optimization, is essential for a business to grow. Entrepreneurs who wish to boost website traffic need SEO to attract customers. React helps in increasing the speed by reducing the loading time of the web page. With React, the website ranks organically in search results. The server-side and the client-side component uses the same code. However, this organic ranking is not guaranteed with other frameworks.

• Easy for Performing Tasks

React framework makes it very easy to debug and test applications. React helps in viewing the functions and outputs to decide if the components need reworking or not.

• Scalable

The major reason React became popular is because of its scalability function. React helps in easy scaling of the size of web applications. React is fast and versatile and merges with third-party libraries and frameworks to create web applications. The React.js framework helps develop touchpoints between the products and users.

• Community Support

The developer’s community and programmers make React popular. The platform is open-source. React has vast community support.

If you are a web developer and wish to create some excellent web applications and mobile applications, then there are some fantastic courses you can apply for. There is no better time to learn React than now.

So, apply for the courses and start your React.js journey.

Just like the React.js framework, the courses for React.js are also popular.

• upGrad React.js Course

It is one of the best courses anyone can opt for. upGrad offers the best React.js course in which the candidates learn the basics to advance. After having a firm grasp of other basic concepts, the candidates will be taught complex concepts. Apart from them, the candidates will also learn how they can develop UI components in React. To get these three scenarios correct, the candidates should be familiar with the JavaScript library.

The best part about this course is that along with theoretical training, candidates will get practical training as well. For instance, a project of creating a UI for a phone directory can be given to the candidates. This will help the students know how UI is built under the guidance of mentors and experts.

What’s more? React.js is a free course provided by upGrad. What more a candidate requires when they wish to learn React? Along with React, the students will also get a fair knowledge about Node.js, frontend development, backend development, full-stack development, etc.

upGrad offers one of the best React courses to help you get some desired jobs. With the certification provided, one can easily apply for various jobs. The React course by upGrad can be completed within three weeks, and you can start your journey as a developer then and there.

Let us now look at other courses you can try

1. Modern React with Redux

This is one of the best React courses for anyone who wishes to learn React from scratch. The course teaches programming in JavaScript by using the redux and React libraries. It also teaches students how to develop applications on the web and mobile. The course covers various topics such as -

• Basics of React
• Installing Node.js
• Learning JavaScript
• How to start and stop projects
• Fundamentals of JSX
• Converting HTML to HSX
• Designing API requests
• Structuring apps
• 2. The Complete React Developer Course

The course provides an in-depth knowledge of React and practical training. As the name suggests, with this course, the students will get A-Z about React and how it is used for programming applications. Network programming and engineering are two of the best options for students to get jobs.

3. React Specialization course with Full-stack Development

This course focuses on React's practical approach and theoretical applications. The certification provided can help the candidates in getting jobs in top companies. Jobs in frontend and backend development are easy to get by doing this course.

4. React Course Front to Back

This course is suitable for freshers who don’t know much about React. Starting from the basics, the students learn how to build complex applications. This course is best for developers who wish to learn the modern techniques and concepts of React. Hooks, fundamentals, and applications are taught in this course. After completing the course, the candidates can get roles in programming and developing apps.

5. Front End Web Development Course with React

The React course is apt for someone who wishes to learn the library's inner workings. In this course, the students will learn to communicate the projects. The students will learn about frontend development to have complete knowledge about frontend. Upon completing the course, the candidates can get jobs as developers or engineers across the globe. With wee-equipped knowledge, the students will have many monetary benefits in the future.

So, these are the top courses that are gaining popularity among candidates. With good job options, these courses have been taken up by thousands of candidates.

Who can apply for these courses?

The courses mentioned above are best for -

• Beginners
• UI developers
• Full-stack developers
• Developers
• Solution architects
• Software engineers
• Anyone interested in user interfaces and web application development

If you ask us, we would suggest you take upGrad’s React course because you will get the certification within three weeks. Also, you will learn the “React” in and out. The placement support is also provided by upGrad, as one can be placed in top MNCs at outstanding pay grades. Apply for these courses now and learn the basics and complex concepts of React.

Is React Native and React the same? Well, React native is a part of React and is highly helpful when it comes to building cross-platform apps.

Let us look at why React native is used for developing mobile apps.

To help businesses thrive, developing iOS and Android apps is a strategic move. Developing the mobile application is a complex process in which a lot of time and effort is invested. This is the reason why the developers use React Native.

React Native is an open-source framework created by the Facebook community. Like React, the React native also uses JavaScript as the core programming language. There are several reasons why one must use React Native. So, let us discuss them in detail.

• Cross-platform

One of the primary advantages of React Native is that it is used to develop cross-platform applications. React native uses React.js with UI library to write the base code of the application on Android and iOS platforms.

For a web page that uses React.js, the developers can use state management, hooks, and logic to create better mobile apps. These features combine to reduce the development time, thereby keeping the cost low.

• Pre-Built components

The main concept of building cross-platform apps is that one can reuse the code written for both iOS and Android applications. React Native follows this principle of ‘writing once and launching everywhere.’

In this way, the developers find it convenient to build cross-platform apps. Developers won’t be requiring different designs for separate platforms. The code can be reused multiple times.

• Familiar Coding

As mentioned above, developers don’t need to write different codes for separate platforms. They can learn JavaScript coding once and know how to correspond to mobile and web components.

• Trustworthy App

Before React Native came into existence, developers used mobile apps created by Facebook to check the platform’s ability to work successfully. Today, many people use React Native as it has become open-source. Thus, many companies have started using React Native to develop mobile apps.

• High-Performance Apps

React Native uses the one-way data binding strategy for writing the base codes. This means that to change one object, the developer has to modify the state of the object. This helps in developing a stable, efficient, and reliable mobile application. Thus, when you think of building a mobile application from scratch, React Native is an amazing option.

• Ever-Growing

React has huge community support for Facebook. The massive community constantly works on improving React Native. In simpler terms, React native is ever-growing. It changes the data. After several months, the situation can be different. Thus, if you wish to have a solution to the problem, then React Native cannot help you. It is growing and changing all the time.

• Rich UI Components

React Native helps you in creating some unique and amazing UIs that help in building declarative components. There are many other Android and iOS components that help in the efficient running of mobile devices.

• Live Updates

JavaScript is a primary language used for releasing updates without going through app stores. Along with having cross-platform development support, it also launches several updates to the user’s device instantly.

So, this is why React Native is gaining popularity nowadays. Not just developers but many companies are also using React to develop web applications and mobile applications.

Now, we have already told you who must do the React.js course. Let us look at the top companies that use React to develop several applications.

React is becoming popular for developing efficient online applications. Several companies use React to create appealing applications to attract consumers.

Let us look at the top companies that use this JavaScript library to create user interfaces. So, let us begin!

• Facebook

React is a JavaScript library created by Facebook almost a decade ago. The company created React Native for mobile app development. You might have noticed that Facebook and websites look completely different from one another. This is because of the React framework.

• Netflix

Netflix is another company that uses React to provide high-quality services to consumers. With the help of React UI, Netflix revamped its look back in 2015. The development speed, modularity, runtime performance, etc., are positively affected by using React UI.

• Uber

Since the beginning, Uber has been using React and other open-source libraries to create web designs with reusable UI components. The company is entirely built on React and allows you to create independent user interfaces.

• Airbnb

React is used by Airbnb. It enables web page elements to load faster on the screen. Airbnb has been using React for its expansion among its clients. Every new version launched by the company adds several valuable capabilities while maintaining and upgrading the marketplace in Airbnb.

• The New York Times

The New York Times has stimulated new projects with the help of React. For instance, React has helped the company boost the looks of celebrities on the red carpet by filtering out their photographs through the decades.

• Yahoo

Yahoo came into existence in 1994 that was crafted with frontend technology. From the beginning, it had React, Node.js, Redux, and several other frameworks. The unidirectional data binding method was also one of the reasons why Yahoo chose to use React.

So, these are some of the top companies that have been using React right from the start. Some companies were formed many decades ago. Yet, in those days, React was very popular and used by every company.

To learn React.js in its full length and breadth, one must take up the upGrad’s React.js course for free. The course will provide the candidates with a deep insight into basic and advanced concepts. The mentors and tutors will not only help you learn React but will also guide you through the practical implementation.

The course is just for three weeks, wherein you can learn at your own pace. Upon getting the certification, the candidates can apply for jobs in various roles like software developers, frontend developers, full-stack developers, backend developers, etc.

This is the first step in learning React. upGrad provides the course for free. What else do students want who wish to become future developers and engineers!

Now, candidates might wonder if React is complex or very easy to learn? Well, to clarify all the confusion, we want to say that React is very easy to learn. A beginner or a working professional can easily understand what React coding is all about. It is one of the most straightforward frameworks in JavaScript that combines the HTML and JAVA concepts to make coding easier.

Now, to learn React fast, there are other ways as well that you can undertake. Here they are:

• Learn how to use coding in React.js. The coding in React is a bit different from other programming languages. Thus one needs to build their skills. The first thing is to learn JAVA and HTML. If you are not planning to take the course, you must learn JAVA and HTML separately. Gain the knowledge of both in their entirety to enhance your JavaScript skills. Deep insight into these skills will help you have a good foundation for learning React

• Routing must also be known to the candidates if they wish to learn React. Routing shows how the consumers move through the website. To learn React, you must first learn how to use React-router. React router helps in building single-page applications without reloading or refreshing the page. The router component is pivotal if one wants to develop web and mobile applications.

• Lists are a great way of building a website. Creating lists in React helps in strengthening the fundamentals of coding. While you begin to learn about React, it is suggested to learn the process of rendering lists

• If you are at the initial stage of learning React, then you must have read something about stages and props. The state refers to the appearance of an object on the webpage. On the other hand, props are used for sharing codes between the components. To work with a React library, the person needs to understand both states and props well.

So, this is how you can get to know more about React. Well, it is still suggested to the candidates to get enrolled in upGrad’s React.js free course. You can learn all about React by enrolling in a certification course.

By enrolling in the course, you will learn everything we have covered up until now. upGrad offers you the free React.js course and provides you with certification upon completion. However, it is essential to note that for learning React, the candidates do not need any prior knowledge of JavaScript. Everything is taught from scratch if they choose the course wisely. upGrad’s mentors and tutors begin teaching the candidates from scratch. They focus on strengthening the simpler concepts and then move to the advanced concepts.

So, there is no need for previous knowledge to learn React. Candidates from any field can begin learning the React language.

React.js is an easy course that can help people get fantastic career opportunities. The world has seen enormous growth in front-end technologies. Hence, the demand for React.js developers is also increasing.

An online React.js course is better because students can learn in the comfort of their homes. Also, working professionals can also learn at their pace. The free React.js course provided by upGrad provides students with deep insight into JavaScript, Node.js, etc. Apart from React, upGrad offers various online courses.

With top-class tutors and mentors, the candidates can learn simple and complex concepts at a rapid pace, which is not possible in offline cases. The online React.js course is for three weeks, i.e., the candidates will learn faster in short duration. Also, React is very easy to understand. Thus, be it a beginner or a working professional – everyone can take up the course.

React.js is a simple yet detailed course that involves everything, i.e., from basic to complex. Have a look at the syllabus:

1. Introduction to React.js

• What is React?
• Why must one use React?
• History of React
• React 15 v/s React 16
• Creating React apps
• React projects
• Running the app
• Debugging the app
• 2. JSX

• Expressions
• Using logical operators
• Fragments
• React.create
• 3. Components

• Importance of component architecture
• Types of components
• Functional components
• Class-based components
• Composition of components
• 4. State and Props

• What is a state?
• What is the significance of a state?
• Read state & set state
• Using props with prototypes
• Setting default values of props
• 5. Lifecycle

• Understanding lifestyle methods
• Handling the errors of web and mobile apps
• 6. HookS
• What are hooks?

• What is the need for hooks?
• Types of hooks
• Rules and regulations of hooks
• 7. Routing

• Installing React-router
• Understanding single-page applications
• Using switch components for routing
• Configuring route components
• Navigating links and using components
• 8. React Redux

• What is React-redux
• Why to use React-redux
• Installation and setup of React Redux

React is a popular framework because it helps in the development of the most prevalent type of technical aspects, i.e., web applications and mobile applications. React and “React Native” help in the creation of cross-platform apps. According to statistics and reports, React has taken the sixth spot with 14.51% of the votes.

With time React will come to the fifth position with 16% -17% votes. React is one of the most popular frameworks, libraries, etc. React has snowballed over the years, and the features and characteristics are increasing daily.

The average salary of a React.js specialist in India ranges from Rs. 2.4 Lakhs to Rs. 14 Lakhs. However, the annual salary of the developers is seen to be Rs. 5 Lakhs.

The factors on which React.js specialist salary depends

The salary to the developers is provided based on experience gained throughout the years. For instance, a fresher of React.js will earn up to Rs. 2 lakhs. On the other hand, an experienced person will earn up to Rs. 14 Lakhs.

Another factor is working on a project. There are many courses that you can apply for. But if you applied for upGrad’s React.js course, you will be working on several projects that will add to your expertise, thereby helping you earn more.

React.js specialist’s starting salary in India

The starting salary of a React.js specialist in India is Rs. 2.4 lakhs per annum, i.e., Rs. 20,000 per month.

The salary figures change with change in the country. For instance, In the US, the candidate earns up to $120,000. Similarly, in Canada, the candidate earns $110,000. So, the salary changes a bit in every country. The US pays the highest salary to React.js developers.

The factors on which React.js specialist abroad salary depends

As told earlier, the salary depends upon the experience one has gained and the projects one has worked on. It is essential to note that no prior knowledge is needed to do the React.js course. But after completing the course, it is crucial to work on leading projects to gain experience. It will help the candidates earn a higher salary, thereby boosting career growth.