[Deff]

var newStr = '';
 var arr = [111,1,111,2,33,3,44,5,33,44,6,77,77];
 var Obj={};

 for(i in arr){
   Obj[arr[i]]=true;
 }
 var arrOut=[]
  for(key in Obj){
   arrOut.push(key);
 }
alert(arrOut)