SP.Social.SocialThread.postReference property (sp.userprofiles)
Gets the referenced post. Applies to reference-type threads.
Applies to: apps for SharePoint | Office 365 | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.Social.SocialThread.get_postReference()
Return value
SocialPostReference
The referenced post. Applies only if the SocialThread.threadType property returns 1 (like reference), 2 (reply reference), 3 (mention reference), or 4 (tag reference).