Select selectedIndexProperty
Select Object
Definition and Usage
The selectedIndex property sets or returns the index number of the selected option in the drop-down list.
Note:If multiple selection is allowed, only the index number of the first selected option is returned.
Syntax
Set the selectedIndex property:
selectObject.selectedIndex=integer
Return the selectedIndex property:
selectObject.selectedIndex
Browser Support
All major browsers support the selectedIndex property.
Example
Example
The following example alerts the index number of the selected option:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Example 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()">Show Index</button>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>Example 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()">Show Index</button>
</body>
</html>
Try it Yourself »
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