What is the TypeScript definition for the onBeforeInput event in React?

The right interface for onBeforeInput is FormEvent

Please continue reading below to see how to use it or read my guide on using React's events with TypeScript.

Interface

interface FormEvent<T = Element> extends SyntheticEvent<T> {
}

Full example

import React, { FormEvent } from 'react';

const FormComponent = () => {
  const handleFormEvent = (e: FormEvent<HTMLFormElement>) => {
    // Do something
  };

  return <form onBeforeInput={handleFormEvent}>{/** Some JSX */}</form>;
};

export default FormComponent;

Attributes that use FormEvent: