The Data-Cube method string throws if an entry of the calling array is a symbol — since '' + someSymbol does not work with symbols.
Note that symbols can be converted to strings: the string constructor String and the Symbol method .toString both work.
The Data-Cube method
stringthrows if an entry of the calling array is a symbol — since'' + someSymboldoes not work with symbols.Note that symbols can be converted to strings: the string constructor
Stringand the Symbol method.toStringboth work.