When do you use refs in ReactJS?

Question
  • Refs are created using React.createRef().
  • Refs are attached to input elements using the ref attribute on the element in
  • question.
  • Refs are often used as instance properties on a component. The ref is set in the constructor (as shown above) and the value is available throughout the component.
  • You cannot use the ref attribute on functional components because an the instance is not created
  • React.createRef() is used to create instance variables within uncontrolled component constructors. These variables are then associated with input elements via the ref attribute.
  • Refs cannot be used on functional components as there is no instance.
  • Refs can be used inside functional components
3 years 2021-08-07T04:39:22+00:00 9 views 0

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