JSFiddle - React, Tailwind, and code Playground
by alachgar
HTML
<select id="first_box">
<option> options 1</option>
<option> options 2</option>
<option> options 3</option>
</select>
<select id="second_box">
<option> options 1</option>
<option> options 2</option>
<option> options 3</option>
</select>
<select id="third_box">
<option> options 1</option>
<option> options 2</option>
<option> options 3</option>
</select>
JavaScript
$('#first_box').change(function(){
$("select").not(this).val(this.value);
});