delete a repeating element from an array

[natasftw]

Right-click the tunnel.  Tunnel Mode.  Conditional.

Or. drag the snippet to your block diagram and you have the entire code written already.

[_Y_]

Use pop-up menu on the tunnel.

By the way... You will find a lot of people willing to answer simple questiions (and I am among them). There is nothing wrong to ask. But you could spend months studying in this way.

[P@Anand]

I see you are using LabVIEW 2011 version and in that you cannot do that. This option is available in LabVIEW 2012 onwards, So manually  have to check the empty string (as I did) and use a build array function inside a case structure to get the similar functionality.