Breaking News: Grepper is joining You.com. Read the official announcement!

react forwardref useImperativeHandle typescript

Add Answer

florinrelea answered on December 3, 2020 Popularity 10/10 Helpfulness 5/10

answer react forwardref useImperativeHandle typescript

related react forwardref typescript

related forwardRef And UseImperativeHandle

related forwardRef and useimperativehandle

react forwardref useImperativeHandle typescript

Comment

type CountdownProps = {}
    
type CountdownHandle = {
  start: () => void,
}
    
const Countdown: React.ForwardRefRenderFunction<CountdownHandle, CountdownProps> = (
  props,
  forwardedRef,
) => {
  React.useImperativeHandle(forwardedRef, ()=>({
    start() {
      alert('Start');
    }
  });

  return <div>Countdown</div>;
}

export default React.forwardRef(Countdown);

/* 
and then use React utility ElementRef, TypeScript
can infer exact ref type of your component
*/
const App: React.FC = () => {
  // this will be inferred as `CountdownHandle`
  type CountdownHandle = React.ElementRef<typeof Countdown>;

  const ref = React.useRef<CountdownHandle>(null); // assign null makes it compatible with elements.

  return (
    <Countdown ref={ref} />
  );
};

Popularity 10/10 Helpfulness 5/10 Language typescript

Source: Grepper

Tags: react-forwardref typescript

Link to this answer
Share Copy Link

Contributed on Jun 12 2022

florinrelea

0 Answers Avg Quality 2/10

Closely Related Answers

react forwardref typescript

Comment

type MyProps = {
  name: string;
}

const CustomInput = forwardRef<HTMLInputElement, MyProps>(props) => {
  // access your props and ref here
}

Popularity 10/10 Helpfulness 5/10 Language typescript

Source: Grepper

Tags: react-forwardref reac

Link to this answer
Share Copy Link

Contributed on Dec 03 2020

peachmangopie

0 Answers Avg Quality 2/10

forwardRef And UseImperativeHandle

Comment

forwardRef is to be able to attach a ref to an instance of this component in its parent.
UseImperativeHandle is for its instance(refs) to be able to use its functions

Popularity 7/10 Helpfulness 1/10 Language whatever

Source: Grepper

Tags: whatever

Link to this answer
Share Copy Link

Contributed on Oct 10 2022

Javasper

0 Answers Avg Quality 2/10

forwardRef and useimperativehandle

Comment

forwardRef: makes this grabbable with useRef
useImperativeHandle: now this ref can use the function.

Popularity 6/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript

Link to this answer
Share Copy Link

Contributed on Oct 11 2022

Javasper

0 Answers Avg Quality 2/10

react forwardref useImperativeHandle typescript

Contents

More Related Answers

react forwardref useImperativeHandle typescript

Closely Related Answers

react forwardref typescript

forwardRef And UseImperativeHandle

forwardRef and useimperativehandle

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.