Option indexProperty
Option Object
Definition and Usage
The index property returns the index position of an option in the dropdown list.
The index starts at 0.
Syntax
Set the index property:
optionObject.index=integer
Return the index property:
optionObject.index
Browser Support
All major browsers support the index property.
Example
Example
This example returns the index position of the selected option in the dropdown list:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Rookie Tutorial (example.com)</title>
<script>
function displayResult(){
var x=document.getElementById("mySelect").selectedIndex;
var y=document.getElementById("mySelect").options;
alert("Index: " + y[x].index + " is " + y[x].text);
}
</script>
</head>
<body>
<form>
Choose your favorite fruit:
<select id="mySelect">
<option>Apple</option>
<option>Orange</option>
<option>Pineapple</option>
<option>Banana</option>
</select>
</form>
<button type="button" onclick="displayResult()">Display index</button>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>Rookie Tutorial (example.com)</title>
<script>
function displayResult(){
var x=document.getElementById("mySelect").selectedIndex;
var y=document.getElementById("mySelect").options;
alert("Index: " + y[x].index + " is " + y[x].text);
}
</script>
</head>
<body>
<form>
Choose your favorite fruit:
<select id="mySelect">
<option>Apple</option>
<option>Orange</option>
<option>Pineapple</option>
<option>Banana</option>
</select>
</form>
<button type="button" onclick="displayResult()">Display index</button>
</body>
</html>
Try it yourself »
Option Object Other Extensions