Is a variable empty

Is a variable empty

is.empty(x, empty = "\\s*")

Arguments

x

Character value to evaluate

empty

Indicate what 'empty' means. Default is empty string (i.e., "")

Value

TRUE if empty, else FALSE

Details

Is a variable empty

Examples

is.empty("")
#> [1] TRUE
is.empty(NULL)
#> [1] TRUE
is.empty(NA)
#> [1] TRUE
is.empty(c())
#> [1] TRUE
is.empty("none", empty = "none")
#> [1] TRUE
is.empty("")
#> [1] TRUE
is.empty("   ")
#> [1] TRUE
is.empty(" something  ")
#> [1] FALSE
is.empty(c("", "something"))
#> [1] FALSE
is.empty(c(NA, 1:100))
#> [1] FALSE
is.empty(mtcars)
#> [1] FALSE