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/

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()

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