React JS

What is React JS?

React JS confers an open-source and front-end JavaScript library which is used in the case of building user interfaces or alternatively known as UI components. Facebook along with a community of companies and individual developers maintain React JS. It can be effectively used as a base for the development of mobile applications as well as a single page. React JS is mostly concerned with the state management and it helps in rendering that state to the DOM. This is the reason why, creation of React applications mostly requires effective and efficient use of additional libraries for the purpose of routing. 

One of the significant examples of such a library is React Router. Along with this, complicated and large applications help in making AJAX calls which eventually helps in fetching or mutating data. Different libraries like Axios, JQuery AJAX or browser built-in window-fetch can be used with React. 

The different entities that make up the React code are known as components. These components are used to render a certain element in the DOM with the use of React DOM library. During the process of rendering of the component, the values can be passed which are defined as “props”. 

Functional components as well as class-based components are the two basic ways of declaring components in React. 

Why React JS?

There are many uses of React JS. Among the other open-source platforms used for making front-end web development app development, React JS works wonderfully. 

Here are some of the benefits that React JS provides:

  1. Simplicity – React JS is easy to grasp. Its approach is component based and has a well-defined lifecycle. The use of plain JavaScript makes it easy to learn and understand. It is quite simple to build professional web with React JS and even support it. 
  2. Ease of learning – An individual with previous knowledge of basic programming can understand the React framework easily which is not the case in other frameworks. 
  3. Binding of data – The framework uses one-way data binding and the application architecture known as the Flux. Flux helps in controlling the flow of data to the various components through the dispatcher. 
  4. Performance – React framework does not offer the concept of built-in container for dependency. 
  5. Testability – The applications are immensely easy to test and the operations can be carried out peacefully. 

Why Elan Techlab?

Elan Techlab work towards enhancing the knowledge and abilities of the individuals and take them close to their dream.  

  1. The individuals get free and relevant study material and many essential tips that can be very helpful while learning something new.
  2. The tutors are highly talented and professional who make it easy for the individuals to grab the new concepts and techniques. 
  3. Both online and offline training facilities are present which makes it easy for the individuals to gain knowledge in their comfortable space. 
  4. The learning environment is made such that all the students feel comfortable and confident in clearing their queries and experimenting their skills. 
  5. We focus on one-to-one attention to ensure that each student is able to receive the best service available.
  6. This course with Elan Techlab will be your leap of faith to ensure a brighter and successful future.

Learning outcomes 

  1. Get detailed information about the subject matter along with essential knowledge about the syllabus. 
  2. Increases the efficiency of the individuals to learn new things and gives them confidence.
  3. Gain the required knowledge to get proficient with respect to the course.
  4. Develop analytical as well as critical thinking skills.



  1. Introduction
  2. Templating using JSX
  3. Components, State and Props
  4. Lifecycle of Components
  5. Rendering List, Portals
  6. Error Handling
  7. Routers
  8. Redux, Redux Saga
  9. Immutable.js
  10. Service side rendering
  11. Unit testing
  12. Webpack


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