vctrs (version 0.3.6)

vec_is_list: Is the object a list?

Description

vec_is_list() tests if x is considered a list in the vctrs sense. It returns TRUE if:

• x is a bare list with no class.

• x is a list explicitly inheriting from "list".

Usage

vec_is_list(x)

Arguments

x

An object.

Details

Notably, data frames and S3 record style classes like POSIXlt are not considered lists.

Examples

# NOT RUN {
vec_is_list(list())
vec_is_list(list_of(1))

vec_is_list(data.frame())
# }