<html><body><h3>A demonstration of how to access a DATALIST element</h3><form> <input list="myDatalist"> <datalist id="myDatalist"> <option value="Internet Explorer"> <option value="Firefox"> <option value="Chrome"> <option value="Opera"> <option value="Safari"> </datalist></form><p>Click the button to get the number of option elements in the datalist.</p><button onclick="myFunction()">Try it</button><p><strong>Note:</strong> The input element's list attribute is used to bind it together with the datalist element.</p><p><strong>Note:</strong> The datalist element is not supported in Internet Explorer 9 and earlier versions, or in Safari.</p><p id="demo"></p><script>function myFunction() { var x = document.getElementById("myDatalist").options.length; document.getElementById("demo").innerHTML = "Found " + x + " options in the list.";}</script></body></html>