JSFiddle - React, Tailwind, and code Playground
HTML
<form>
<select name="select1" id="select1">
<option value="1">account 001</option>
<option value="2">account 002</option>
<option value="3">blue 001</option>
</select>
<input type="text" name="text1" id="text1">
</form>
JavaScript
$(function() {
$('#select1').on('change', function(event) {
alert(this.value);
});
});