Removing numbers - Javascript?

[Thedude]

I have run into a number of problems trying to do this-was hoping you guys could help...

we have two lists
list 1 is the following

1234-001
1234-002
1234-003
1234-005

list 2 is the following:

1234-001
1234-002
1234-003
1234-004
1234-005
1234-006

is there a way to remove the matching numbers?

I have found a script to sort the numbers but I have no clue where to go from here...Is there an easier way of doing this? I am currently trying to use javascript but it won't even sort the numbers unless I format the list with spaces (ex. 1234-001 1234-003 1234-002) And trying to make a second form that compares to the first seems like a nightmare please help me!

[Banfa]

You have not indicated the source of this data or what type of variable it is stored in in Javascript.

From what you have said you sound like you are storing each list as a string, however a better way would be to store each list as an array. You could when use a couple of simple for loops to itterate through the entries in the arrays and the array method splice to remove those entries you don't want in the second list.

See Javascript array reference at

http://www.w3schools.com/jsref/jsref_obj_array.asp

[Thedude]

Sorry I was not specific enough, yes I am trying strings...
I want this to be a web based program with 2 text boxes that can be typed in that just removes matching pairs of numbers...The numbers being entered will always be different I don't want them to be part of the program...Does the link you gave me still apply?