!DOCTYPE-htmlnhtmlntheadnttmeta-charset=utf-8ntttitletitlenttscriptntttfunction-uniquearrnttttvar-newArr=;nttttforvar-i=0;iarrlength;i++ntttttifnewArrindexOfarri===-1nttttttnewArrpusharri;ntttttnttttnttttreturn-newArr;ntttnttscriptntheadntbodyntbodynhtml

This is an HTML document that includes a script for a function called "unique". The function takes an array as a parameter and returns a new array with only unique values (i.e. no duplicates). The script is included in the head section of the HTML document and can be called from within the body section or from an external script. The title of the page is blank, so it will not display anything in the browser tab.