This function returns a logical value that indicates if a data
frame or another named object contains an element with a specific
name. Note that has_name() only works with vectors. For instance,
environments need the specialised function env_has().
Arguments
- x
A data frame or another named object
- name
Element name(s) to check
Value
A logical vector of the same length as name
Details
Unnamed objects are treated as if all names are empty strings. NA
input gives FALSE as output.
Examples
has_name(iris, "Species")
#> [1] TRUE
has_name(mtcars, "gears")
#> [1] FALSE
