This is a convenience function for testing if an object is NULL
, and
providing a custom error message if it is.
stopIfNull(target, msg = NULL)
target | Object to test if |
---|---|
msg | Optional custom message to display when |
If target
is not NULL
, target
is returned
invisibly.
library(MazamaCoreUtils) # Return input invisibly if not NULL x <- stopIfNull(5, msg = "Custom message") print(x)#> [1] 5