Option index Property - Javascript DOM HTML Element

Javascript examples for DOM HTML Element:Option

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Description

The index property sets or gets the index position of an option in a drop-down list.

The index starts at 0.

Set the index property with the following Values

Value Description
integer Sets the index position of the option within a drop-down list

Return Value

A Number, representing the index position of the option within a drop-down list. The index starts at 0.

The following code shows how to Display the index and text of the selected option in a drop-down list:

Demo Code

ResultView the demo in separate window 

<!DOCTYPE html>
<html>
<body>

Select your favorite fruit:
<select id="mySelect">
  <option>Apple</option>
  <option>Orange</option>
  <option>Pineapple</option>
  <option>Banana</option>
</select>/*from   w w w .j ava2  s . co  m*/

<button type="button" onclick="myFunction()">Test</button>

<script>
function myFunction() {
    var x = document.getElementById("mySelect");
    var txt = "All options: ";
    var i;
    for (i = 0; i < x.length; i++) {
        txt=txt + "\n" + x.options[i].text + " has index: " + x.options[i].index;
    }

    console.log(txt);
}
</script>

</body>
</html>

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