JSFiddle - React, Tailwind, and code Playground

HTML

<select id="myselect">
      <option value="1">value1</option>
      <option value="2" selected="selected">value2</option>
      <option value="3">value3</option>
  </select>

JavaScript

var selects = document.getElementById("myselect");
  var selectedValue = selects.options[selects.selectedIndex].value;// will gives u 2
  var selectedText = selects.options[selects.selectedIndex].text;// gives u value2
alert(selectedText);
alert(selectedValue);