stri_isempty: Determine if a String is of Length Zero

Description

This is the fastest way to find out whether the elements of a character vector are empty strings.

Usage

stri_isempty(str)

Arguments

str

character vector or an object coercible to

Details

Missing values are handled properly.

Value

Returns a logical vector of the same length as str.

Author(s)

Marek Gagolewski and other contributors

See Also

The official online manual of stringi at https://stringi.gagolewski.com/

Other length: %s$%(), stri_length(), stri_numbytes(), stri_pad_both(), stri_sprintf(), stri_width()

Examples

stri_isempty(letters[1:3])
## [1] FALSE FALSE FALSE
stri_isempty(c(',', '', 'abc', '123', '\u0105\u0104'))
## [1] FALSE  TRUE FALSE FALSE FALSE
stri_isempty(character(1))
## [1] TRUE