SP.FieldUrlValue.description property (sp.js)
Gets or sets a value that specifies the description for the URI.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.FieldUrlValue.get_description ()
var value = SP.FieldUrlValue.set_description ()
Return value
Type: String
Remarks
Its length must be equal to or less than 255.