Null-coalescing operator

Returns the left-hand side if it is not NULL, otherwise returns the right-hand side. This operator is re-exported from the rlang package for convenience.

Usage

x %||% y

Arguments

x

Left-hand side value to check

y

Right-hand side value to use if x is NULL

Value

Returns x if it is not NULL, otherwise returns y

Examples

# Returns the non-NULL value
5 %||% 10        # Returns 5
#> [1] 5
NULL %||% 10     # Returns 10
#> [1] 10

# Useful for setting defaults
x <- NULL
value <- x %||% "default"  # Returns "default"