JSFiddle - React, Tailwind, and code Playground

by Sascha

HTML

<select id="dropdown">
  <option value="mech">101</option>
  <option value="cse">201</option>
  <option value="ece">4301</option>
  <option value="Select" selected disabled="disabled">select the branch code</option>
</select>
<input type="button" onclick="reset()" value="Reset"/>

JavaScript

function reset() {
  document.getElementById("dropdown").value= "Select";
}