SP.FieldRatingScale.gridTextRangeAverage property (sp.js)
Gets or sets a value that specifies the display text corresponding to the average of the rating scale.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.FieldRatingScale.get_gridTextRangeAverage ()
var value = SP.FieldRatingScale.set_gridTextRangeAverage ()
Return value
Type: String