HTMLFormControlsCollection: namedItem() method

The HTMLFormControlsCollection.namedItem() method returns the RadioNodeList or the Element in the collection whose name or id match the specified name, or null if no node matches.

Note that this version of namedItem() hides the one inherited from HTMLCollection. Like that one, in JavaScript, using the array bracket syntax with a String, like collection["value"] is equivalent to collection.namedItem("value").

Syntax

namedItem(name)
[name]

Parameters

name: A string which will be used to match against the name or id attributes of the controls in this HTMLFormControlsCollection object.

Return value

A RadioNodeList if there are multiple elements with the given name or id,
An Element if there is exactly one element with the given name or id, or
null if no element has the given name or id.

Note: The returned RadioNodeList is live, meaning that its contents automatically update if elements that match the given name are added to or removed from the collection. Furthermore, it may contain non-radio input elements despite the collection's name.

Examples

undefined

Using namedItem()

HTML

html

<form>
  <label for="yes">Yes</label>
  <input id="yes" name="my-radio" type="radio" />
  <label for="no">No</label>
  <input id="no" name="my-radio" type="radio" />
  <label for="maybe">Maybe</label>
  <input id="maybe" name="my-radio" type="radio" />
  <br />
  <label for="text1">Text input 1</label>
  <input id="text1" name="my-form-control" type="text" />
</form>

<div id="output"></div>

div {
  margin: 1rem 0;
}

JavaScript

const form = document.querySelector("form");
const items = form.elements.namedItem("my-radio");

const output = document.querySelector("#output");
const itemIDs = Array.from(items)
  .map((item) => `"${item.id}"`)
  .join(", ");

const item2 = form.elements.namedItem("my-form-control");
output.textContent = `My items: ${itemIDs}
My single item: "${item2.id}"`;

Result

Specifications

HTML