TODO comments in rStudio

I would suggest that you consider the todor RStudio add-in by dokato. After installing via devtools:

devtools::install_github("dokato/todor")

You will be able to conveniently list ToDo items across your project:

(images and code sourced from: https://github.com/dokato/todor)

You can use the outline list by having:

# TODO I definitely need more unit tests here! ####

Just keep in mind that you have to have 4 '#' at the end of the line

There is no such system in RStudio, but there is an easy way of searching for the comments. Do this:

1. Go to Edit -> Find in Files
2. Tick the checkbox "Regular Expression"
3. Enter the following regular expression: ^\s*# TODO
4. Click Find

That regular expression will match any line that starts with # TODO.