op-nullish: The usual nullish operator
In jeanmathieupotvin/dotprofile: Create and Manage Configuration Profiles

Description Usage Arguments Value Examples

This operator returns y if and only if x is NULL. Otherwise, it returns x. It is most useful to provide alternatives in assignment operations. See examples.

x %||% y

x, y

[any]

R Objects.

Either x or y. The latter is returned if and only if x is NULL.

## Assign an object to a name, and provide an alternative if it is NULL.
a <- 1L
b <- 2L
c <- a %||% b

identical(c, a) # TRUE

a <- NULL
c <- a %||% b

identical(c, b) # TRUE