jQuery onchange - Javascript

The onchange event is fired when the value of an element has been changed. When using jQuery, you can attach an event handler to this event using the on method.

Syntax

$(selector).on('change', function(event) {
   // code to be executed when the value of the element has been changed
});

Example

Suppose we have an input field with an ID of my-input. We can attach an event handler to the onchange event using the following code:

$(document).ready(function() {
  $('#my-input').on('change', function() {
    alert('Value has been changed!');
  });
});

Explanation

The on method is used to attach an event handler to the change event of the input field with ID my-input. The event handler is a function that is executed when the value of the input field is changed. In this example, the function simply displays an alert message.

Conclusion

In conclusion, the onchange event is a useful event in web development that allows you to perform actions when the value of an element has been changed. When using jQuery, you can easily attach an event handler to this event using the on method.