Option formProperty

Option 对象参考手册Option Object

Definition and Usage

The form property returns a reference to the form that contains the option.

This property returns the form object.

Syntax

optionObject.form


Browser Support

Internet ExplorerFirefoxOperaGoogle ChromeSafari

All major browsers support the form property


Example

Example

This example returns the form ID of the selected option in the drop-down list:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Example (example.com)</title>
<script>
function displayResult(){
    var x=document.getElementById("mySelect").form.id;
    alert(x);
}
</script>
</head>
<body>

<form id="form1">
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 the form ID</button>
    
</body>
</html>

Try it Yourself »


Option 对象参考手册Option Object Other Extensions