react Remarks

1. React this binding assembly

Since this is not point in JSX current object, so the need tobind

Reference article:

• [Translation] Why do you need in class components bound React to this event handler
• React why you want to bind this

2. controlled and non-controlled assembly components

in short,

• The controlled components
  for example, each time it will change state corresponding to a value

  
  
  
• Uncontrolled
  us usually written in a form similar to the real data is stored in the DOM node, only when submitted, will get the value of the form
• How to choose?
  According to their project requirements, personal understanding is, if you want to do real-time verification, then it is a controlled components;
  If the form is relatively simple, then it is a non-controlled components, relatively speaking, reducing the amount of code related onChange.

Reference article:

• Controlled and uncontrolled form inputs in React don't have to be complicated