Exercise

Reformatting JSON

Of course you don't have to use rlist. You can achieve the same thing by using functions from base R or the tidyverse. In this exercise you'll repeat the task of extracting the username and timestamp using the dplyr package which is part of the tidyverse.

Conceptually, you'll take the list of revisions, stack them into a data frame, then pull out the relevant columns.

dplyr's bind_rows() function takes a list and turns it into a data frame. Then you can use select() to extract the relevant columns. And of course if we can make use of the %>% (pipe) operator to chain them all together.

Try it!

Instructions

100 XP

Pipe the list of revisions into bind_rows().
Use select() to extract the user and timestamp columns.

Take Hint (-30 XP)