Always check your values in the console. I think I see the issue and it is a common misunderstanding when getting started with forms. Adding a class does not add the class to the input field, it adds it to a parent object.

So you must reference your inputs by $('.Part input') instead of just $('.Part') when you want to get the value.

They do this because sometimes you don't need to access the input, select, etc. Sometimes your trying to access another child object like the label.

Good morning.  I understand what you explained.  I still was not getting any results.  So, I attempted to enable console logging but there is nothing showing in it.  I do not understand why no values show in console either.  So, I thought I would send the entire Javascript in case something else was interfering.

$(document).ready( function() {
$('.MyCollection').on('change','.SelectCheckbox input', function() {
    if ($(this).val().length > 0){
        $('#q28 input').focus();
    }
});
});

$(document).ready(function() {
    // Define the compareFields function
    function compareFields() {
        console.log("compareFields function called.");
        
        // Iterate through each row in the collection
        $('.MyCollection').each(function() {
            var partField = $(this).find('.Part input');
            var scanField = $(this).find('.Scan input');

            // Log the values of Part and Scan inputs to the console
            console.log("Part input value: " + partField.val());
            console.log("Scan input value: " + scanField.val());

            // Compare the values and change the background color
            if (partField.val() === scanField.val()) {
                $(this).css('background-color', 'green');
            } else {
                $(this).css('background-color', 'red');
            }
        });
    }

    // Attach an event listener to trigger compareFields when input is detected in Scan field
    $('.MyCollection .Scan input').on('input', function() {
        compareFields();  // This calls the compareFields function
    });
});

When I look at the console, it is blank.  So I assume the compareFields function is not running.  Do you see what I am doing incorrectly?

Here is a visual of the form.