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1. We Believe in The Power of Single Idea

2. • ReactJS is a declarative, efficient, and flexible JavaScript
library for building reusable UI components. It is an open-
source, component-based front end library responsible
only for the view layer of the application. It was created
by Jordan Walke, who was a software engineer at
Facebook. It was initially developed and maintained by
Facebook and was later used in its products like
WhatsApp & Instagram. Facebook developed ReactJS in
2011 in its newsfeed section, but it was released to the
public in the month of May 2013.
• Today, most of the websites are built using MVC (model
view controller) architecture. In MVC architecture
What is ReactJS

3. • 18.2.0
• https://github.com/facebook/react/blob/master/C
HANGELOG.md#1701-october-22-2020
React Versions

4. • HTML ,CSS and Javascript
• Fundamentals of ES6 .
• Basic Of How To Use NPM(Node Package
Manger)
prerequisite for react js

5. • nstall NodeJS and NPM:
Go to https://nodejs.org/en/
Download the latest version of NodeJS LTS
with Administrator privileges.
• Node –v
To Create React App

6. • Create React App
npx create-react-app my-app
To Create React App

7. • create-react-app <projectname>
• Run project:
COPY
cd <projectname>
npm start
To Create React App

8. Deploy Project On Live Server
• set "homepage": url package.json
• cd <projectname>
• Npm run build

9. • create-react-app <projectname>
• Run project:
COPY
cd <projectname>
npm start
To Create React App

10. • Currently, ReactJS gaining quick popularity as the best
JavaScript framework among web developers. It is
playing an essential role in the front-end ecosystem.
The important features of ReactJS are as following.
• JSX
• Components
• One-way Data Binding
• Virtual DOM
• Simplicity
• Performance
React Features

11. • JSX
• JSX stands for JavaScript XML. It is a JavaScript
syntax extension. Its an XML or HTML like
syntax used by ReactJS. This syntax is
processed into JavaScript calls of React
Framework. It extends the ES6 so that HTML
like text can co-exist with JavaScript react code
React Features

12. • Components
• ReactJS is all about components. ReactJS
application is made up of multiple
components, and each component has its own
logic and controls. These components can be
reusable which help you to maintain the code
when working on larger scale projects.
React Features

13. • One-way Data Binding
• ReactJS is designed in such a manner that
follows unidirectional data flow or one-way
data binding.
• data binding in UI is the binding of UI fields to
a data model. There are two approaches of
data binding : one way data binding and two
way data binding
React Features

14. • one way data binding -> model is the single
source of truth . whatever happens on UI triggers
a message to model to update a part of data. So
data flows in single direction and which becomes
easy to understand.
• two way data binding -> any change in UI field
updates the model and any change in model
updates the UI field.
• one way data binding is better approach because
of unidirectional flow of data. Also only model
has the access to change the application state.
React Features

15. Thank you!
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