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目录

HTML DOM Element firstElementChild

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Examples

Get the HTML content of the first child element:

let text = element.firstElementChild.innerHTML;
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Get the tag name of the first child element of "myDIV":

let text = document.getElementById("myDIV").firstElementChild.tagName;
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Get the text of the first child element of a <select> element:

let text = document.getElementById("mySelect").firstElementChild.text;
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Description

The firstElementChild property returns the first child element of the specified element.

The firstElementChild property is read-only.

The firstElementChild property returns the same as children[0].

See Also:

The children Property

The childElementCount Property

The lastElementChild property

The tagName Property

The childNodes Property

Nodes vs Elements

In the HTML DOM terminology:

Nodes are all nodes (element nodes, text nodes, and comment nodes).

Whitespace between elements are also text nodes.

Elements are only element nodes.

childNodes vs children

childNodes returns child nodes (element nodes, text nodes, and comment nodes).

children returns child elements (not text and comment nodes).

firstChild vs firstElementChild

firstChild returns the first child node (an element node, a text node or a comment node). Whitespace between elements are also text nodes.

firstElementChild returns the first child element (not text and comment nodes).

lastChild vs lastElementChild

lastChild returns the last child node (an element node, a text node or a comment node). Whitespace between elements are also text nodes.

lastElementChild returns the last child element (not text and comment nodes).

Syntax

element.firstElementChild

Return Value

Type Description
Node The first child element of an element.
nullif no child element exists.

Browser Support

element.firstElementChild is a DOM Level 3 (2004) feature.

It is fully supported in all modern browsers:

Chrome Edge Firefox Safari Opera IE
Yes Yes Yes Yes Yes 11
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