remove duplicates and sort array

[JACKWEBS]

No, just one array.
If I understand correctly your code is supposed to loop through the relevant dimension of the array and return an array with out the duplicates.
Either I am passing in the index and dimension incorrectly or I am not using the function correctly?

By passing in unique(array[0],false) it seems to assume that I mean index 0 (row) whereas I am trying to get it to look through dimension 0 (column).

For example in this array:

var testArray = [
  [3, "Infrastructure", "SY400", "SY410", "SY414", "ZACY"],
  [5, "Regions", "SY600", "SY610", "SY610", "ZALY"],
  [3, "Infrastructure", "SY400", "SY410", "SY410", "ZAVI"],
  [4, "Management", "SY300", "SY340", "SY344", "ZBBC"],
  [1, "Central Services", "SY700", "SY700", "SY700", "ZBDX"],
  [4, "Management", "SY300", "SY340", "SY345", "ZBFP"],
  [3, "Infrastructure", "SY400", "SY440", "SY440", "ZBHX"]
];

I want to pass in the reference to [0] so it returns an arry with 3,5,4,1 instead of 3,5,3,4,1,4,3
except it only returns the value 3 and stops at that.

Do I need to loop through and run unique multiple times or do I need to loop through the returned array?
Either way I am not passing in the right references somewhere...