JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ms-dropdown@4.0.3/dist/css/dd.min.css">
<script src="https://cdn.jsdelivr.net/npm/ms-dropdown@4.0.3/dist/js/dd.min.js"></script>
<select id="tech" class="tech" name="tech">
                            <option value="" selected>Please select one</option>
                            <option value="1" data-image="/assets/images/partners/bjb.png" data-description="BJB">Transfer Bank</option>
                            <option value="2" data-image="/assets/images/partners/ovo.png" data-description="OVO">E-Wallet</option>
                        </select>
                        
                        <button onClick="setValue()">
                        changeval
                        </button>

JavaScript

function getChangedVal(){

let ddSelect = new MsDropdown(document.getElementById("tech"));
console.log("ddSelect.selectedText ", ddSelect.selectedText)

}


function setValue(){
	console.log('setValue()')
  var oHandler = document.getElementById("tech").msDropDown().data("dd");
  oHandler.set("selectedIndex", 1);
  /*
  var oHandler = $('#selectElem').msDropDown().data("dd");
  if(oHandler) {
      oHandler.set("selectedIndex", i);
  }
  */
}