JSFiddle - React, Tailwind, and code Playground

HTML

<select onChange="alert(this.value)">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
    <option value="5">5</option>
</select>
<select name="field">
    <option value="1">a1</option>
    <option value="2">b2</option>
    <option value="3">c3</option>
    <option value="4">d4</option>
    <option value="5">e5</option>
</select>

JavaScript

$("select[name=field]").bind('change',function(){
    alert($(this).val())});