check_placeholders: Check an exercise for missing arguments
In ericwburden/trainr: Learn R by Trial and Error (TDD)
Description
Usage
Arguments
Value
Description
Exercise files contain a number of '?' markers that should be filled in by
the user. R interprets these as variables named ‘?', which of course don’t
exist. Given the lines (as character vectors) of the exercise file, raises
an informative error if any of those placeholders aren't filled in.
Usage
1
check_placeholders(file_lines)
Arguments
file_lines
character vector of exercise file lines
Value
a list containing:
- 'success': logical value indicating whether the check succeeded
- 'msg': character value indicating the success/failure message
ericwburden/trainr documentation built on Jan. 28, 2022, 2:21 p.m.
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Description Usage Arguments Value
Description
Exercise files contain a number of '?' markers that should be filled in by the user. R interprets these as variables named ‘?', which of course don’t exist. Given the lines (as character vectors) of the exercise file, raises an informative error if any of those placeholders aren't filled in.
Usage
1 | check_placeholders(file_lines)
|
Arguments
file_lines |
character vector of exercise file lines |
Value
a list containing: - 'success': logical value indicating whether the check succeeded - 'msg': character value indicating the success/failure message
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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