setElementData Syncronize data

[GhostXoP]

In the Optional Argument

Does that mean, when the client scripts try to check the elements data, it will be the same there as it is on the server?

[Castillo]

Exactly.

[myonlake]

And just to make one thing clear, it is already defined as "true", so you do not need to write it in the end unless you want to disable it.