sjmisc (version 1.7)

is_empty: Check whether string or vector is empty

Description

This function checks whether a string or character vector (of length 1) or any vector (numeric, atomic) is empty or not.

Usage

is_empty(x)

Arguments

x

String, character vector of length 1, or vector.

Value

• Logical, TRUE if x is a character vector or string and is empty, TRUE if x is any vector and of length 0, FALSE otherwise.

Examples

x <- "test"
is_empty(x)

x <- ""
is_empty(x)

x <- NA
is_empty(x)

x <- NULL
is_empty(x)

# string is not empty
is_empty("")

# however, this trimmed string is
is_empty(trim(""))

# numeric vector
x <- 1
is_empty(x)
x <- x[-1]
is_empty(x)