JQuery with Native JS

jquery-equivalents.js

// Assuming we have a jQuery ui autcomplete loaded...
// jQuery listener
$(domain).on('autocompleteclose', callback);

// Native listeners functionally equivalent to 'autocompleteclose' listener
domain.addEventListener('blur', callback);
domain.addEventListener('focusout', callback);
var ul = document.querySelector('.ui-autocomplete');
ul.addEventListener('click', callback);

// Arbitrary callback
function callback(e) {
    console.log(e);
}