Element: id 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.
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
A string.
Specifications
| Specification |
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| DOM # ref-for-dom-element-id① |
Browser compatibility
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Partial support
- Partial support
- Has more compatibility info.
See also
- The DOM id global attribute.