Element.id
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 |
---|
DOM Standard # ref-for-dom-element-id① |
Browser compatibility
BCD tables only load in the browser
See also
- The DOM id global attribute.