Typescript: React event types

When working with React and TypeScript, it’s important to understand the different event types that can be used in your components. In this blog post, we will explore the various event types available in TypeScript for handling events in React.

1. SyntheticEvent

The SyntheticEvent is a cross-browser wrapper around the native browser event. It provides a consistent interface for handling events in React components. You can access the event properties and methods using the currentTarget property of the event object.

Here’s an example of handling a click event using SyntheticEvent:

{`import React from 'react';

function handleClick(event: React.SyntheticEvent) {
  console.log('Button clicked');
}

function Button() {
  return ;
}`}

2. MouseEvent

The MouseEvent interface represents events that occur due to the user interacting with a mouse. It provides additional properties specific to mouse events, such as clientX and clientY.

Here’s an example of handling a mouse move event using MouseEvent:

{`import React from 'react';

function handleMouseMove(event: React.MouseEvent) {
  console.log('Mouse moved');
  console.log('X:', event.clientX);
  console.log('Y:', event.clientY);
}

function Div() {
  return Move the mouse;
}`}

3. KeyboardEvent

The KeyboardEvent interface represents events that occur due to the user interacting with a keyboard. It provides additional properties specific to keyboard events, such as key and keyCode.

Here’s an example of handling a key press event using KeyboardEvent:

{`import React from 'react';

function handleKeyPress(event: React.KeyboardEvent) {
  console.log('Key pressed:', event.key);
}

function Input() {
  return ;
}`}

4. FormEvent

The FormEvent interface represents events that occur when a form is submitted. It provides additional properties specific to form events, such as target and submit.

Here’s an example of handling a form submit event using FormEvent:

{`import React from 'react';

function handleSubmit(event: React.FormEvent) {
  event.preventDefault();
  console.log('Form submitted');
}

function Form() {
  return (
    
      
      
    
  );
}`}

These are just a few examples of the event types available in TypeScript for handling events in React. Depending on your specific use case, you may need to use other event types such as FocusEvent or ChangeEvent. Make sure to refer to the TypeScript documentation for a complete list of available event types.

Remember to always define the correct event type when handling events in your React components to ensure type safety and avoid potential bugs.

Happy coding!

Typescript: React event types