HTML DOM Element childElementCount

Number of child elements of a <div> element:

let numb = document.getElementById("myDIV").childElementCount;

childElementCount returns the same as children.length:

let numb = document.getElementById("myDIV").children.length;

Description

The childElementCount property returns the number of child elements of an element.

The childElementCount property returns the same as children.length.

The childElementCount is read only.

The returned value is the number of child elements, not the number of child nodes (like text and comment nodes).

In the HTML DOM (Document Object Model), an HTML document is a collection of nodes with (or without) child nodes.

Nodes are element nodes, text nodes, and comment nodes.

Whitespace between elements are also text nodes.

Elements are only element nodes.

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

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

Siblings are "brothers" and "sisters".

Siblings are nodes with the same parent (in the same childNodes list).

Element Siblings are elements with the same parent (in the same children list).

element.childElementCount

Type	Description
Number	The number of child elements of the element

element.childElementCount 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