we can use slot name 'field$'+prop here to obtain a reference to the corresponding
component.
you can get current field value here: {{ value }}
But if you want to modify the bound value, you need to call the 'setValue' method to
update it. (You
can refer to the example of 'custom2' field, template named '#customSlotName')
you can also get or binding global data here, example: {{ data.number1 }}
you can get or binding placeholder here: example: {{ placeholder }}