The id property of the Element interface represents the element's identifier, reflecting the id global attribute.
If the id value is not the empty string, it must be unique in a document.
The id is often used with getElementById() to retrieve a particular element. Another common case is to use an element's ID as a selector when styling the document with CSS.
Note: Identifiers are case-sensitive, but you should avoid creating IDs that differ only in the capitalization.
Value
Specifications
Browser compatibility
|
Desktop |
Mobile |
|
Chrome |
Edge |
Firefox |
Internet Explorer |
Opera |
Safari |
WebView Android |
Chrome Android |
Firefox for Android |
Opera Android |
Safari on IOS |
Samsung Internet |
id |
23
1–23Only supported for HTMLElement, not all Element objects, such as SVGElement.
|
12 |
1 |
5 |
≤12.1 |
1 |
4.4 |
25
18–25Only supported for HTMLElement, not all Element objects, such as SVGElement.
|
4 |
≤12.1 |
1 |
1.5
1.0–1.5Only supported for HTMLElement, not all Element objects, such as SVGElement.
|
See also
- The DOM id global attribute.