Introduction

Welcome to a step-by-step react tutorial. React is a front-end JavaScript library, highly popular today, and is used in web development. The JavaScript library allows building quick and interactive interfaces for the user. These interfaces are used for mobile and web applications. React is a component-based, open-source, and front-end library that is responsible only for the view layer of the application.

It is however the salient features of React that gave it its popularity. React can be used to develop mobile and web apps that have reusable components. It offers a unidirectional flow of data that creates dynamic applications and is used for many more functions. This React tutorial explains it all.

In this article let us look at:

  1. What is React?
  2. React Props
  3. ReactJS State
  4. React Js Components
  5. React with Redux
  6. ReactJs Interview Questions
  7. ReactJs applications

1. What is React?

React is a popular front-end JavaScript used in web development. Maintained mostly by Facebook with a huge community of developers, React is today used by many established and large companies to build their UI components and user interfaces.

2. React Props

The next part of this react tutorial explains React Props. React JS follows a distinct data flow approach and manipulation. This can be a little difficult to understand the concepts of ReactJs like State and Props. In the React tutorial, we learn about what the React Props are. This is an important concept in ReactJs.

Props are the short form of properties and it is used to pass the data from one to the other component. It is important to understand its various features and how it is used. It is possible to pass the props to the component only from the parent to the child. The props data are immutable which means that these are read-only.

3. ReactJS State

The ReactJs state is yet another crucial concept of ReactJs and this react tutorial. The React State holds the component data. The component returns the data that is contained within the output state. The State of the component can change with time. When this occurs then the components get re-rendered. It is crucial to understand the basics of ReactJs and the differences between the Props and the State in ReactJs.

The state is used to store the data of the components that need to be rendered to the view. The State is usually updated by the event handlers. It is possible to use the state only in the class components.

4. React Js Components

The ReactJs component is the building block of the application and this is created by making use of ReactJs. It splits the interface of the user into independent parts. Each of these parts can be processed individually. The ReactJs component allows reusing the elements of the user interface which is what makes the ReactJs tool so popular.

You need to understand the various types of ReactJs components, the lifecycle of the components used in ReactJs, and the nesting ReactJs components.

5. React with Redux

Redux is an expected State container used in JavaScript apps. It helps in maintaining the flow of data and keeps it organized when the application grows. It is crucial to understand the Redux working and its basic concepts. 

Here are the advantages of Redux:

  • The store is always the single source of truth and thus there is never any confusion about how to sync the present state with actions and the other application parts
  • It is easy to maintain the code because of its strict structure and predictable outcome
  • Coding is highly consistent with React with Redux due to stringent procedures
  • Especially in the initial rendering stages, Redux is very useful. This offers better SEO and improves user experience
  • The developers can track everything that goes on in the application in real-time. This includes the Stage changes and the actions.

6. ReactJs Interview Questions

ReactJs is a popular technology used in the front end and companies are constantly on the lookout for professionals who possess the right skills. If you are applying for a job in this field then you need to be prepared for the frequently asked React JS interview questions.

The interview questions are grouped under the following categories. These are the: 

  • Basic questions asked in the interview
  • Questions on the components
  • Interview questions on Redux
  • Route interview question
  • Interview question on styling

7. ReactJs applications

ReactJs is a library in JavaScript that offers a lightweight, fast, and modern way to execute a code. Here are some of the important ReactJS applications.

  • Creating a dynamic web application requires complex coding. However, with ReactJs it becomes fast and easy to enable the tags and the HTML quotes to render the individual subcomponents.
  • A major benefit of using ReactJs is that it allows reusing the components. This makes it easy to define and manipulate the used objects. It in turn allows better maintenance of the codes.

ReactJs offers design patterns that enable a smooth transition of the website application to mobile app development. ReactJs allows building high-end UI apps for IOS and Android systems.

Conclusion

To wrap up this react tutorial, we’d like to add that ReactJs is in demand and is the first choice of developers today to build website applications. You may be a professional developer or a newbie and it helps to learn all that is there about ReactJs to ensure a promising and exciting career.

If you are interested in learning more about software development, you can check out our holistic Master Certificate Program in Full Stack Development.

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