Extract a single character from a string, using its index.

Source: R/elem.R

If the element does not exist, this function returns the empty string. This is consistent with stringr::str_sub(). This function is vectorised over both arguments.

str_elem(string, index)

Arguments

string

A character vector.

index

An integer. Negative indexing is allowed as in stringr::str_sub().

Value

A one-character string.

See also

Other single element extractors: str_elems(), str_paste_elems()

Examples

str_elem(c("abcd", "xyz"), 3)
#> [1] "c" "z"
str_elem("abcd", -2)
#> [1] "c"