Your Search Results

    Element.id

     

    The Element.id property represents the element's identifier, reflecting the id global attribute.

    It must be unique in a document, and is often used to retrieve the element using getElementById. Other common usages of id include using the 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 (see Case sensitivity in class and id names).

    Syntax

    var idStr = elt.id; // Get the id.
elt.id = idStr; // Set the id
    • idStr is the identifier of the element.

    Specifications

    Specification Status Comment
    DOM
    The definition of 'id' in that specification.    		 Living Standard No change from Document Object Model (DOM) Level 2 HTML Specification.
    Document Object Model (DOM) Level 2 HTML Specification
    The definition of 'id' in that specification.    		 Recommendation No change from Document Object Model (DOM) Level 1 Specification.
    Document Object Model (DOM) Level 1 Specification
    The definition of 'id' in that specification.    		 Recommendation Initial definition.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes)

    See also

    • The DOM id global attribute.

    Document Tags and Contributors

    Tags: 
     Contributors to this page: Jeremie, fscholz, teoli, MHasan, kscarfone, vishu_gawli, ScottMichaud, Sheppy, ethertank, tregagnon, ziyunfei, Nickolay, bigmantonyd, Matej Lednar, Mgjbot, Dewang, Ptak82, BenoitL, Dria, Biesi, Callek, JesseW
     Last updated by: Jeremie,