Does an object have an element with this name?
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().
has_name(x, name)
x |
A data frame or another named object |
name |
Element name(s) to check |
Unnamed objects are treated as if all names are empty strings. NA
input gives FALSE as output.
A logical vector of the same length as name
has_name(iris, "Species") has_name(mtcars, "gears")
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