JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://www.jeasyui.com/easyui/themes/default/easyui.css">
<script src="http://www.jeasyui.com/easyui/jquery.easyui.min.js"></script>
<input id="addfaktur1_bukti" class="easyui-combobox">

JavaScript

var tb = $('#addfaktur1_bukti').combobox('textbox');
tb.focus();
tb.bind('blur', function(e){
    alert('blur');
});