REACT IN JS

• Today I learned about React,It is a open source javascript library formerly developed by Facebook now managing by (meta).
• It Allow us to make reusable UI Components that manages its own state,more efficient and predictable .
• React has HMR component,which updates changed modules instantly in browser .without reloading or refreshing a page
• By react we develop a single page application
• React runs in Node
• MPA- Multiple Page Application
• NPM- NODE Package Manager

1. Difference between Library and Framework

=> FRAMEWORK

• Framework calls your code ,it's incharge for itself only thing we do is just plug our code in its structure
• It calls the code whenever it wanted and when right time comes .

=> LIBRARY

• Library is a code you call,In library you are in charge .we import our code and call by its function whenever we want
• Also our code control id in flow

2.WHAT IS BUILT TOOL

• Built tool it process our own code into Optimised file that browser can run ,Because browser doesn't understand JSX so built tool optimize it before it run .

=> BUILT TOOL IN REACT

• VITE
• Create react app/web pack (TBD)
• Parcel (TBD)
• Turbo pack (TBD)

1.VITE

• Extremely fast
• Currently it's popular among developers
• Developer's go to for react projects
• Also it has HMR (hot module replacement) Fixes changed modules in browsers instantly .