reactjsHow can I use ReactJS to detect a keypress event?

ReactJS provides a way to detect keypress events through the use of the onKeyPress event handler. This event handler can be attached to a React component and will fire whenever a key is pressed while the component is in focus. The event handler will be passed an event object containing information about the key that was pressed.

class MyComponent extends React.Component {
  handleKeyPress(event) {
    console.log(`A key was pressed: ${event.key}`);
  }

  render() {
    return <div onKeyPress={this.handleKeyPress} />;
  }
}

When the above component is in focus and a key is pressed, the following output will be logged to the console:

A key was pressed: <key pressed>

The following parts are involved in the code above:

1. The handleKeyPress method is the event handler that will be called whenever a key is pressed while the component is in focus. It takes an event object as an argument, which contains information about the key that was pressed.

2. The onKeyPress event handler is attached to the component's render method. This allows the event handler to be called whenever a key is pressed while the component is in focus.

3. The event.key property is used to log the key that was pressed to the console.

Helpful links

• ReactJS Documentation - SyntheticEvent
• MDN - KeyboardEvent.key

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