JSFiddle - React, Tailwind, and code Playground

by Sulthan Allaudeen

HTML

<select id ='aaa'>
    <option value="1">One</option>
    <option value="2">Two</option>
</select>

<select id ='bbb'>
    
    <option value="2">Two</option>
    <option value="1">One</option>
</select>

JavaScript

$('#aaa').on('change', function() 
{   
    if (this.value==1) 
    {
      $('#bbb').val('2');
}
    else
    {
          $('#bbb').val('1');
    }
    
})
$('#bbb').on('change', function() 
             
{
  if (this.value==1) 
    {
    $('#aaa').val('2');
}
    else
    {
          $('#aaa').val('1');
    }
    
})