Join MDN and developers like you at Mozilla's View Source conference, 12-14 September in Berlin, Germany. Learn more at

This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

A type returned by some APIs which contains a list of DOMString (strings).


DOMStringList.length Read only
Returns the length of the list,


Returns a DOMString.
Returns Boolean indicating if the given string is in the list


Specification Status Comment
Document Object Model (DOM) Level 3 Core Specification
The definition of 'DOMStringList' in that specification.
Recommendation Initial specification

Document Tags and Contributors

 Contributors to this page: Sebastianz, teoli, Bzbarsky, kscarfone, Sheppy, BYK, Brettz9
 Last updated by: Sebastianz,