How do I get my script to listen to any text that is being typed within a text field?
I used the class '.ops' and tagged it to various select fields and a text field. I'm only able to detect the changes in the select fields, but not able to detect the changes in the text field unless I press 'Enter'on the keyboard. 

This is my current script (Inside the function contains an AJAX script).

```
$(document).on('change', '.ops', function() {

});

```