Element: childElementCount property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Thuộc tính Element.childElementCount read-only property
returns the number of child elements of this element.
Ví dụ
js
let sidebar = document.getElementById("sidebar");
if (sidebar.childElementCount > 0) {
// Do something
}
Đặc tả kỹ thuật
| Specification |
|---|
| DOM # dom-parentnode-childelementcount |