Introduction to React | React Js Tutorial for beginners

Shreyesh kolhe
September 24, 2021




What is React?

        React is a javascript library for building user interfaces 

Is ReactJs library or framework?

    1.React is not a framework. React is a javascript library for building user interface

    2.it is also known as ReactJs and React.js , so don't get confused if you read different notation in different places.

    3. React knows only thing that is to create an awesome UI.

React History 

  1. React was first designed by Jorden Walke, a software engineer at facebook.
  2. it was first deployed for Facebook News feed around 2011.
  3. in 2013, React was open sourced at JS conference.
About React
    1.Component based approach:
            a component is one of the  core building blocks of React. in other words, we can say that every application you will develop in React will be made up of pieces called components. components make the task of building UIs much easier.

    2.Uses a Declarative Approach

    3.DOM updates are handled gracefully

    4.Reusable Code

    5. React is  designed for speed, speed of implementing the application simplicity and scalability.

Why React
  1. created and maintained by facebook 
  2. it has a huge community on GitHub.
  3. component Based Architecture

What is the Prerequisites for React?
  1. Basic Knowledge of HTML, CSS and Javascript.
  2. Basic understanding of Es10 features
  3. basic understanding of how to use npm.