Removing an element from a list

[SEMaster Aftermath]

Hello everyone, I am working on a creating a waiting list. I currently have the ability for a person to add their name to the list by clicking on the object. However, I would also like to (as the object owner) remove a name from the list if that person is no longer interested in being on the list. I attempted the ListItemDelete function, but can not get it to work.

I was hoping it would be as simple as doing the listname -= personname, but I guess lsl doesn't recognize -= like it does the +=.

Any help would be appreciated, thank you.

[Wulfie Reanimator]

4 minutes ago, SEMaster Aftermath said:

I attempted the ListItemDelete function, but can not get it to work.

To get that specific custom function to work, you must copypaste it at the top of your script (before any state/event) before you can use it in your own code.

If you want to use the built-in function llDeleteSubList, you just have to remember to assign the result of the function to something.

[Rolig Loon]

When a person wants to be removed from the list, you'll need to loop through the list to find the name (or UUID, or whatever marker you are using as an ID).  llListFindList is useful for that purpose.  Once you've found it, you can use  llDeleteSubList to get rid of it.  There are other ways (for example, you could use JSON and its LSL functions instead of using lists) , but that's often the easiest.

[SEMaster Aftermath]

Thank you both of you, I will need to read up more on the llDeleteSubList. From what I can see on the wiki though...I need to use the entry number on the list, or can I use the person's name?

[Quistess Alpha]

33 minutes ago, SEMaster Aftermath said:

.I need to use the entry number on the list, or can I use the person's name?

you need the entry # in the list; llListFindList() can help you find the entry number if you know exactly the thing in the list you're trying to delete.