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<html><head><script>function getIndex() { document.getElementById("demo").innerHTML = document.getElementById("mySelect").selectedIndex;}</script></head><body><form>Select your favorite fruit:<select id="mySelect"> <option>Apple</option> <option>Orange</option> <option>Pineapple</option> <option>Banana</option></select><br><br><input type="button" onclick="getIndex()" value="Display the index of the selected option"></form><p id="demo"></p></body></html>