Remove word from list

[#1]

Hi! I am trying to remove the word "none" from my lists ( which is variable according to the data input), but after running the script I see no changes in my output. Do you guys have any suggestion on how I can improve my code? 

unique= Associative Array(Data) << Get Keys;
show(unique); // output- unique= {" BGG", " BSG", "None"}
       Number= nitems(unique);
	for( i= 1, i >= Number, i++,
		if (unique[i]== "None",
		    remove from(unique,unique[i]);,
		);
	);
	

[#2 · Accepted solution]

Here is how you want to handle your issue.  By working backwards down the list, you do not get the reference to the list incorrect because of deleting members of the list.

unique = {" BGG", " BSG", "None"};
For( i = N Items( unique ), i >= 1, i--,
	If( unique[i] == "None",
		Remove From( unique, i, 1 ), 

	)
);
Show( unique );