This property defines the Unicodes which have Thaana script
Characters like ހ,ށ,ނ, etc. are listed under Thaana Script.
50 Characters are present in Thaana Script starting with the Unicode point U+0780 that represents the character ހ.
Currently, as per latest version 15.0.0, Unicode supports 164 number of Script. Here are a few examples - Adlam,Ahom,Anatolian Hieroglyphs, etc.