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Determine if a String is of Length Zero

Source: R/length.R
stri_isempty.Rd

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

Value

Returns a logical vector of the same length as str.

Details

Missing values are handled properly.

See also

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

Gagolewski M., stringi: Fast and portable character string processing in R, Journal of Statistical Software 103(2), 2022, 1-59, doi:10.18637/jss.v103.i02

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

Author

Marek Gagolewski and other contributors

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