Hi all, I'd like to propose a new casting step, asNumber(), which is similar to asString() and asDate(), to ease numerical data manipulation.
The basic concept of this step is to take incoming traversers and convert them into desired types via a set of Number tokens as parameter. If no token is provided, the step will try to parse into `int` or `double` based on the input. In case of non-parsable input, an exception will be thrown. For inputs types: - Number: casted into the specified types, potentially overflow exceptions - String: parsed into specified types, potentially parsing exception - Collection: will have to be unfolded (can consider adding scopes in the future) - Others: parsing exception I've opened up a PR here [https://github.com/apache/tinkerpop/pull/3122] with the step proposal in detail. Suggestions and comments are welcome. Cheers, Yang
