SP.ChangeQuery.groupMembershipAdd property (sp.js)
Gets or sets a value that specifies whether adding users to groups is included in the query.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.ChangeQuery.get_groupMembershipAdd ()
var value = SP.ChangeQuery.set_groupMembershipAdd ()
Return value
Type: Boolean