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Datalist options Collection

❮ Datalist Object

Example

Find out how many options there are in a specific <datalist> element:

var x = document.getElementById("browsers").options.length;

The result of x will be:

5
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More "Try it Yourself" examples below.


Definition and Usage

The options collection returns a collection of all the options in a <datalist> element.

Note: The elements in the collection are sorted as they appear in the source code.


Browser Support

Collection
options Yes 10.0 Yes Yes Yes

Syntax

datalistObject.options

Properties

Property Description
length Returns the number of <option> elements in the collection.

Note: This property is read-only

Methods

Method Description
[index] Returns the <option> element from the collection with the specified index (starts at 0).

Note: Returns null if the index number is out of range
item(index) Returns the <option> element from the collection with the specified index (starts at 0).

Note: Returns null if the index number is out of range
namedItem(id) Returns the <option> element from the collection with the specified id.

Note: Returns null if the id does not exist

Technical Details

DOM Version: Core Level 2 Document Object
Return Value: An HTMLCollection Object, representing all <option> elements in the <datalist> element. The elements in the collection are sorted as they appear in the source code

Examples

More Examples

Example

[index]

Get the value of the first option (index 0) in a datalist:

var x = document.getElementById("browsers").options[0].value;

The result of x will be:

Internet Explorer
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Example

item(index)

Get the value of the first option (index 0) in a datalist:

var x = document.getElementById("browsers").options.item(0).value;

The result of x will be:

Internet Explorer
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Example

namedItem(name_or_id)

Get the value of the option with id="google" in a datalist:

var x = document.getElementById("browsers").options.namedItem("google").value;

The result of x will be:

Chrome
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Example

Loop through all options in a datalist, and output the option values:

var x = document.getElementById("mySelect");
var txt = "";
var i;
for (i = 0; i < x.options.length; i++) {
    txt = txt + x.options[i].value + "<br>";
}

The result of txt will be:

Internet Explorer
Firefox
Chrome
Opera
Safari
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❮ Datalist Object