JSFiddle - React, Tailwind, and code Playground

HTML

<select id="users">
        </select>

JavaScript

$( function(){
    var xhr = {
    "resultat": {
        "nbitems": 5,
            "items": ["ZZZ", "AAA", "BBB", "WWW", "CCC"]
    },
        "error": null,
        "exception": null
}

   setSelectValues = function( res) {
       
       $.each( res.items, function(idx,elt){
           console.log(idx +"=>" + elt);
           $("#users").append( $('<option/>').html(elt) )
        })
 
    }
  
   setSelectValues(xhr.resultat)
   });
 

$('#users').change(function(){
    var text = $('#users option:selected').text();
    alert("change = " + text);
});