overview.qmd

---
title: "Debugging Overview"
author: "Shannon Pileggi"
footer:  "[Debugging](https://github.com/shannonpileggi/iterating-well-with-purrr)"
logo: "img/wtf-logo-square-transparent.png"
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## Key concepts

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`r fontawesome::fa("road", fill = "white")` traceback

   `location` where did the error occur

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`r fontawesome::fa("bug", fill = "white")` interactive debugger

   `context` why did the error occur

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`r fontawesome::fa("magnifying-glass", fill = "white")` your code   vs   `r fontawesome::fa("hat-wizard", fill = "white")` their code

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interactive debugging: pause the execution of a function and launch environment where you can interactively explore what's happening
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## Debugging tools

![](img/debugging_tools.svg)

## Debugging your code

![](img/debugging_yours.svg)


## Debugging in the RStudio IDE

![](img/debugging_ide.svg)



## Debugging their code

![](img/debugging_theirs.svg)



## Debugging special cases

![](img/debugging_special.svg)


## Pick your favorite

![](img/debugging_pick.svg)


## Go forth, <br> and learn from your bugs!

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<https://giphy.com/gifs/TreehouseDirect-max-and-ruby-maxandruby-maxruby-S3qtrEqiU5OuwAtg5Z>
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## Additional resources {.smaller}

-   WTF Ch 11 *Debugging R code* <br> <https://rstats.wtf/debugging-r-code.html>

-   Advanced R Ch 22 *Debugging* <br> <https://adv-r.hadley.nz/debugging.html>

-   Jenny Bryan 2020 RStudio Conf Keynote *Object of type closure is not subsettable* <br> <https://github.com/jennybc/debugging#readme>

-   Amanda Gadrow 2018 Webinar *Debugging techniques in RStudio* <br> <https://www.rstudio.com/resources/webinars/debugging-techniques-in-rstudio/>

-   Jim Hester 2019 *Introduction to debugging in R and RStudio* <br> <https://www.jimhester.com/talk/2019-crug-debugging/>

-   Maëlle Salmon 2021 *How to become a better R code detective?* <br> <https://masalmon.eu/2021/07/13/code-detective/>

-   Kara Woo 2019 RStudio Conf *Box plots A case study in debugging and perseverance* <https://www.rstudio.com/resources/rstudioconf-2019/box-plots-a-case-study-in-debugging-and-perseverance/>

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