_.uniq = function(array, isSorted, iterator) {
    var newArr = [];
    if(iterator === undefined) {
      for(var i = 0; i<array.length; i++) {
        if(! newArr.join('').includes(array[i])) {
          newArr.push(array[i]);
        }
      }
    } else {
      for(var i = 0; i<array.length; i++) {
      var test = iterator(array[i],i,array);
       if (test && array[i] == array[0]) {
          newArr.push(array[0], array[1]);
          return newArr;
       }
      }
      if(!test) newArr.push(array[0]);
    }
    return newArr;
  };


//
iterator(newArr[j],j,newArr) ? arr2.push(newArr[j]) : '';