[the] id of <object>


The id property contains the unique identification number of an object. This number stays the same over the lifetime of an object, even if you move it up or down in the list of objects, or rename it. Note that the ID number is only unique within an object’s parent. So there may be several buttons with the ID number 17, on different cards. Similarly, multiple projects may contain a stack with an ID number 3.

Finally note that currently, all projects created by Stacksmith have the ID number -1.