luyx2412

- Should be use PureComponent to avoid re-render many times --> https://reactjs.org/docs/react-api.html#reactpurecomponent
- Seperate Container file and Component file --> https://medium.com/@dan_abramov/smart-and-dumb-components-7ca2f9a7c7d0
- Avoid use .bind when handle function --> https://stackoverflow.com/a/32192892/6622971
- Don’t use arrow functions in your render methods --> onPress={(e) => this.handlePress(e)} --> only use when need pass params to handle, or 
  export default ({deleteItem, item}) => {
      const _onDeleteTap(){
          deleteItem(item.id)
      }
      return(
          <TouchableOpacity onPress={_onDeleteTap}>