A type returned by some APIs which contains a list of DOMString (strings). View Source js/lib.dom.d.ts, line 963 Members Type: boolean # contains Returns true if strings contains string, and false otherwise. View Source js/lib.dom.d.ts, line 971 Type: string | null # item Returns the string with index index from strings. View Source js/lib.dom.d.ts, line 976 Type: number # length Returns the number of strings in strings. View Source js/lib.dom.d.ts, line 966