SP.FieldRatingScale.gridNAOptionText property (sp.js)
Gets or sets a value that specifies the display text corresponding to the choice in the rating scale that indicates the non-applicable option.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.FieldRatingScale.get_gridNAOptionText ()
var value = SP.FieldRatingScale.set_gridNAOptionText ()
Return value
Type: String