Event triggered by the backspace key but not removing the key

Question

I have a form field that uses Jorn Zaefferer "autocomplete" jQuery plugin. If I type some text, then select a part of it and click backspace, refresh the autocomplete list. But if I delete delete instead of backspace, the autocomplete list will disappear.

I am looking at the code for the plugin, and it looks like the autocomplete updater is triggered by the keydown event in the field, and both backspace and delete are failing.

Is there a fundamental difference between backspace and delete that might be causing this?

Answer 1

onChange() , Del - :

function onChange(crap, skipPrevCheck) {
    if( lastKeyPressCode == KEY.DEL ) {
        select.hide();
        return;
    }

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