Does an object contain anything?

Does an object contain anything?

is_empty(x, recursive = TRUE)

Arguments

x	An R object, typically a list or vector.
recursive	logical, whether to unlist x to check for contents at any depth.

Value

logical, whether x contains anything.

See also

base::unlist

Examples

library(salinasr)

vec <- NULL
vec
#> NULL
is_empty(vec)
#> [1] TRUE

nested_list <- list(a = list(b = list(c = list(d = NULL), e = NULL), f = NULL), g = NULL)
nested_list
#> $a
#> $a$b
#> $a$b$c
#> $a$b$c$d
#> NULL
#> 
#> 
#> $a$b$e
#> NULL
#> 
#> 
#> $a$f
#> NULL
#> 
#> 
#> $g
#> NULL
#> 
is_empty(nested_list)
#> [1] TRUE
is_empty(nested_list, recursive = FALSE)
#> [1] FALSE