Week 13

React + JSX

• First form example demo controlled components
• Clock, evolve repeated render() into update state animation
  
  
• Sunset/Sunrise form from week 9 Using React initial conversion to React (mult components, no state) explicit re-render
• Sunset/Sunrise example above morphed into using state React
• React props vs state

simple state examples stat updates the ui
• like button
• shopping cart
• bouncing ball

other - errors & prev examples
• some errors you may encounter
• see also React examples in previous examples