zeehio

Referencial transparency is a property of most programming languages, where the name of the variables does not affect the outcome.

Let's start with a simple example:

add1 <- function(variable) {
  return(variable + 1)
}

add1(1)

zeehio

#
# udev rule
#   Mount USB drive to the media directory using the partition name as mount point
#
# Description:
#   Created for Home Assistant OS, this rule mounts any USB drives
#   into the Hassio media directory (/mnt/data/supervisor/media).
#   When a USB drive is connected to the board, the rule creates one directory
#   per partition under the media directory. The newly created partition is named
#   as the partition name. If the partition does not have a name, then the following

zeehio

---
title: "Demo inconsistency"
author: ""
date: ""
output: html_document
---

```{r Chunk1}
Sys.sleep(5)
```

zeehio

reprex::reprex({
  library(DelayedArray)
  x <- DelayedArray(matrix(1L, nrow = 2, ncol = 1))
  colnames(x) <- "potato"
  
  # wrong:
  df <- as.data.frame(x, drop = TRUE)
  colnames(df)
  
  # workaround: