I would like to assign different values to "line-dash-array" property based on the actual data.
Example:
'line-dasharray': [ "case", ['==', ['get', "my_prop"], 'my_value'], ['literal', [0,0]], ['literal', [2,3]] ]

This feature has already been added to Mapbox GL JS >= 2.3.0.
I know that there is a workaround (i.e. duplicate the layer and use a filter) but it would be nice to have this feature also in maplibre.