Uki is Jaffna based nonprofit organization by Yarl IT Hub. In this blog, we want to post our daily studies and curriculum. We learn HTML, CSS, JavaScript, Nodejs, MongoDB and React. Now in the blog, I'm posting daily what I learn like WordPress, earn money, etc. mithushanuki4.blogspot.com

Saturday, April 27, 2019

React Js

React

React is a JavaScript library for building user interfaces created by Facebook.
It is maintained by Facebook and a community of individual developers and companies.
React is a tool for building UI components

What is Babel?

  • Babel is a JavaScript compiler that can translate markup or programming languages into JavaScript.
  • Babel is available for different conversions. React uses Babel to convert JSX into JavaScript.

What is JSX?

  • JSX stands for JavaScript XML.
  • JSX is an XML/HTML like extension to JavaScript.



    What are components?

    • Components are the building blocks of any React app and a typical React app will have many of these. Simply put, a component is a JavaScript class or function that optionally accepts inputs i.e. properties(props) and returns a React element that describes how a section of the UI (User Interface) should appear.
      • Sample
        • const Greeting = () =>  <h1>Hello World today!</h1> ;
          • Out put is Hello World Today!

    <p>react.js </p>

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