Title Text

What is ReactJS ?

Developped by Facebook & Instagram since 2013

V in MVC

Virtual DOM to make it faster

Single Responsability Principle

DRY : Dont Repeat Yourself

Single page application

Compatibility : IE8+
IE8 support ended in v15 (current version is 15.4.0)

JSX / ES6

ES6 : Object oriented Javascript

JSX : Optimization on compilation to be faster than Javascript

class Hello extends React.Component {
  render() {
    return <div>
            Hello {this.props.toWhat}
           </div>;
  }
}

ReactDOM.render(
  <Hello toWhat="World" />,
  document.getElementById('root')
);
class Hello extends React.Component {
  render() {
    return React.createElement(
      'div', null, `Hello ${this.props.toWhat}`
    );
  }
}

ReactDOM.render(
  React.createElement(
    Hello, {toWhat: 'World'}, null
  ),
  document.getElementById('root')
);

https://facebook.github.io/react/docs/jsx-in-depth.html

Redux

Single source of data : Store

Actions

Reducers

... and middlewares

Combine them all !

ReactJS - Presentation 21/12/2016

By Ibrahima Sow

ReactJS - Presentation 21/12/2016

React / Redux

  • 290