map_vec

[hadley]

Would take a col_type argument a la readr (although the semantics would be a little different)

[hadley]

Waiting for vector coercion/combination from vctrs

[1danjordan]

This probably isn't your preference, but I like the idea of adding a .type argument to purrr::map, to specify which S3 vector to return - default being a list. Then it wouldn't be necessary to add another map_ function to the API, and then there would be only one map function that would serve most needs. Either way, really looking forward to purrr + vctrs integration!

[hadley]

The problem is what happens if the .type is not specified? map() would always return a list; map_vec() would return something simpler.