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<html><body><select id="mySelect"> <option>Apple</option> <option>Pear</option> <option>Banana</option> <option>Orange</option></select><p>Click the button to return the number of option elements in the dropdown list.</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script> function myFunction() { var x = document.getElementById("mySelect").length; document.getElementById("demo").innerHTML = x; }</script></body><!-- /jsref/tryit.asp?filename=tryjsref_select_length </html>