onbeforeopen swal

The onbeforeopen swal event is triggered just before a SweetAlert modal is opened. This event can be used to perform some actions before the modal is shown to the user.

Usage

To use the onbeforeopen swal event, you can add the event listener to your SweetAlert instance:

Swal.fire({
  onbeforeopen: () => {
    // Do something before the modal is opened
  }
});

The onbeforeopen callback function will be called just before the modal is opened. You can use this function to perform some actions, such as fetching data from a server, validating user input, or updating the UI.

Example

Here's an example of how you can use the onbeforeopen swal event to fetch data from a server just before the modal is opened:

Swal.fire({
  title: 'Please enter your name',
  input: 'text',
  onbeforeopen: () => {
    // Fetch some data from a server
    getData().then(data => {
      console.log(data);
      // Update the UI with the fetched data
      document.getElementById('someElement').textContent = data.someValue;
    });
  },
  showCancelButton: true,
  confirmButtonText: 'Submit'
}).then(result => {
  if (result.value) {
    // Do something with the user input
  }
});

In this example, we're using the onbeforeopen swal event to fetch some data from a server and update the UI with the fetched data. Once the user submits their input, we can do some other action with the data.

Conclusion

The onbeforeopen swal event is a powerful tool that can be used to perform some actions just before a SweetAlert modal is opened. By using this event, you can fetch data from a server, validate user input, or update the UI, among other things.