SP.NavigationNode.title property (sp.js)
Gets or sets value that specifies the anchor text for the navigation node link.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.NavigationNode.get_title ()
var value = SP.NavigationNode.set_title ()
Return value
Type: String
Remarks
It must not be null. Its length must be equal to or less than 256.