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<html><body>Select a fruit and click the button:<select id="mySelect"> <option>Apple</option> <option>Orange</option> <option>Pineapple</option> <option>Banana</option></select><button type="button" onclick="myFunction()">Display index</button><script>function myFunction() { var x = document.getElementById("mySelect").selectedIndex; var y = document.getElementById("mySelect").options; alert("Index: " + y[x].index + " is " + y[x].text);}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_option_index by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 05 Sep 2022 15:53:10 GMT --></html>