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JS & DOM Reference

Overview

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Select size Property

Select Object

Definition and Usage

The size property sets or returns the number of visible options in a dropdown list.

Syntax

Set the size property:

selectObject.size=integer

Return the size property:

selectObject.size

Browser Support

The size property is supported in all major browsers.

Example

Change the number of visible options in the dropdown list:

<html>
<head>
<script>
function displayResult()
  {
  document.getElementById("mySelect").size=4;
  }
</script>
</head>
<body>

<form>
<select id="mySelect">
  <option>Apple</option>
  <option>Pear</option>
  <option>Banana</option>
  <option>Orange</option>
</select>
</form>

<button type="button" onclick="displayResult()">Change size</button>

</body>
</html>

Try it yourself »

Select Object