Returns a newly constructed BasicString object with its value being the concatenation of the characters in this followed by those of rhs.
Parameter rhs can by type of BasicString!(...), char|wchar|dchar array/slice/character.
BasicString!char str = null; assert(str.empty); str = str + '1'; assert(str == "1"); str = str + "23"d; assert(str == "123"); str = str + BasicString!dchar("456"); assert(str == "123456");
See Implementation
Returns a newly constructed BasicString object with its value being the concatenation of the characters in this followed by those of rhs.
Parameter rhs can by type of BasicString!(...), char|wchar|dchar array/slice/character.